ksa fax tel butterfly valves - jytt-intl.comcert no. 0062 kab-qc-30 iso 9001 cert no. qms-0549 ksa...

Cert No. 0062 KAB-QC-30 ISO 9001Cert No. QMS-0549

KSABUTTERFLY VALVES

CO., LTD.HEAD OFFICE #75-8, MORA-DONG, SASANG-GU, BUSAN, KOREA TEL +82-51-305-3770 FAX +82-51-305-3737

INTERNET ADDRESS http://www.dkvalve.com

E-MAIL ADDRESS [email protected] | [email protected]

DK카다로그최종 2009.4.4 3:22 PM 페이지1

Advantages of butterfly valve IndexButterfly valve is much smaller than other valve designs. The results are saving inmaterials, less weight, small space requirement, and easy installation and operation.The liner materials used in the construction of DK butterfly valve are either Elastomeror TEFLONⓇ. Wafer construction provides maximum strength under conditions ofpipeline strain. DK performs three basic functions of stopping flows, controlling flowand regulating flows and pressure with several advantage functions such as;

ContentsConcentric rubber lined butterfly valve

2 piece split body PTFE lined butterfly valve

Double eccentric High Performance butterfly valve

Triple eccentric High Performance butterfly valve

Dual plate check valve

Engineering data

04

12

14

17

20

22

Valve configurations scale drawing to actual size

Application

This catalog remains the property of m/s DK Co., Ltd.Alternation of dimensions, materials, weight and others are reserved and subject tomodification without pre-notice

•Tight shut off •Less fluid resistance achieved through smooth flow•Low pressure drop•On-off or throttling applications•Suitable for automation with low operating torque and 90 degree

operating angle•Reduced weight and installation space •No flange gasket•Quick fitting and dismantling•Easy replacement and renewable seat

DK Co., Ltd.02

BALL GATE BUTTERFLY GLOBE PLUG

BL301Wafer, Lever OpSize : 40~300mm

(1½″~12″)

BG301Wafer, Gear OpSize : 200~1000mm

(8″~40″)

BL302Full Lug, Lever OpSize : 40~300mm

(1½″~12″)

BG302Full Lug, Gear OpSize : 40~1000mm

(1½″~40″)

BL303Flange, Lever OpSize : 40~300mm

(1½″~12″)

BG303Flange, Gear OpSize : 40~1000mm

(1½″~40″)

BL301EHigh PerformanceWafer, Lever OpSize : 50~150mm

(2″~6″)

BG301EHigh PerformanceEccentric, Gear OpSize : 50~1000mm

(2″~40″)

BL301TWafer Teflon LinedLever OpSize : 40~150mm

(1½″~6″)

BG301TWafer Teflon Lined Gear OpSize : 200~800mm

(8″~32″)

BE301Wafer, Pneumatic OpSize : 40~1000mm

(1½″~40″)

BP301Wafer, Electric OpSize : 40~1000mm

(1½″~40″)

BC301Wafer Center wheel OpSize : 40~300mm

(1½″~12″)

BW301Chain wheel OpGear OpSize : 40~1000mm

(1½″~40″)

DK Co., Ltd. 03

POWER PLANT FACTORY STEEL WORKSPETROLEUM SHIPS

WATER TREATMENT CHEMISTRY MININGFOODS HOUSING

GAS LEISURE FACILITY PAPER MAKINGAIR CONTROL


StandardAccording to ISO 5752 - BS 5155 - MSS SP 67 - API 609

Product range40mm up to 1000mm(1½″~40″)

Pressure rangeDesigned for maximum working pressure of 16bar (240psi)

Flange connectionsThe shape of valve body has been so designed as toallow flange bolt alignment onto following standards.Wafer type valve has been successfully developed to fitmulti functional application onto either connectionstandard in the same configuration, mainly

ISO PN 6, 10, 16, 20ANSI B 16.1 CL.BS 4504 PN6, PN10, PN16AS 2109 Table D and EMSS SP 44 CL. 150ANSI B 16.5 CL. 150BS 10 Table D and EJIS B 2210 5K, 10K, 16K and 20K

OperatingHand lever with notch plateManual worm gearWith locking deviceElectric/Pneumatic actuatorHydraulic actuatorChainwheel gear box

TestingAPI598MSS SP 61, ANSI B 16.104

Mounting plate in accordance with ISO standard

Heavy duty top bushing adsorbs side thrust load(PTFE optional)

Piping alignment Flange bolt alignment andinstallation suit for multi-national standard such asJIS, DIN, ANSI and BS flange standard

Liner Retained resilient seat to valve enableseasy replacement and isolates the body and stemfrom the flow. Special design of built-in O-ringprovides positive flange sealling with no pipelinegasket required.

Sealing Hub seal is provided by preloadedcontact between flatted seat surface andspherically machined and polished disc positions

Body Face to face dimension is in accordancewith API and ISO standard.

Disc edge Spherically machined and polisheddisc edge provides full concentric sealing, lowerlever torque, longer seat life and positive shut-offclosed at both directions.

0504

DK DK

Leak-tightness at Line stream, shaft passages and the atmosphere Specifications

Body

Disc

Stem

Seat

Packing

Gland

·Cast iron·Ductile iron·Carbon steel·Stainless steel·Bronze

·Ductile iron·Stainless steel·Aluminum bronze·Coated

·Stainless steel·Stainless steel·Stainless steel·Stainless steel·K-Monel

Elastomer·EPDM·NBR·Viton·Silicon·Neoprene

·EPDM·NBR·Viton

·PP

ASTM A 126 Cl. BASTM A 536 Gr 65-45-12ASTM A 216 WCBASTM A 351 Gr CF8-CF8MASTM B 62

ASTM A 536 Gr 65-45-12ASTM A 351 Gr CF8-CF8MASTM B 148 Cl. C95500EPDM, Viton, Buna-N, etc

ASTM A 276 304ASTM A 276 410ASTM A 276 31617-4PH ASTM A 564 TYPE 630ASTM B 164

Working temperature-10℃ ~ +180℃-10℃ ~ +170℃-20℃ ~ +150℃-20℃ ~ +120℃-10℃ ~ +170℃

Materials

A perfect zero leakage seal at bi-direction is obtained by the compression of the inner between the valve body and the edge ofthe disc. A perfect zero leakage seal is provided by means of flatted liner area around both up and down shaft passages and thespherically machined disc. Since the seat stem hole is smaller than the stem diameter, there is a compression fit forming asecondary seal. The seal insures that no fiuid will leak to atmosphere.

DK Co., Ltd.DK Co., Ltd.


DK DK

Valve dimensionsSize

ØD Ød L H h1 h2Stem Top flange to ISO 5211

O WT(kg)Inch

1 ½″

2″

2½″

3″

4″

5″

6″

8″

10″

12″

40

50

65

80

100

125

150

200

250

300

86

105

114

129

155

180

207

260

331

377

40

52

65

80

100

125

150

198

248

298

41

43

46

46

52

56

56

60

68

78

205

227

241

263

290

319

347

433

546

601

58

66.5

71

83

95

110

124

163

227

252

124

130.5

140

150

163

178

191

238

285

315

10

14

14

14

16

19

19

22

28

28

8

10

10

10

12

15

15

18

20

20

F07

F07

F07

F07

F07

F07

F07

F07

F10

F10

90

90

90

90

90

90

90

90

125

125

70

70

70

70

70

70

70

70

102

102

4

4

4

4

4

4

4

4

4

4

9

9

9

9

9

9

9

9

12

12

10

11

11

11

11

12

12

13

15

15

3.1

3.7

4

4.4

5.9

8.9

9

11

20

31.5

Unit(mm)

refer to flange drilling on page 24

Unit(mm)


ØU G Type ØN ØP m Øsmm

0706

WAFER BODYWAFER BODY

DimensionsSize

2″50

2.5″65

3″80

4″100

5″125

6″150

8″200

10″250

12″300

LEVERHAP

228210

246210

268210

292262

327262

358.5262

445297

GEAR

HAPW

254150150

264150150

280150150

316150150

351150150

382.5150150

469225190

568270250

636270250

Inchmm



OWT(kg)Inch

14″

16″

18″

20″

24″

28″

30″

32″

36″

40″

350

400

450

500

600

700

750

800

900

1000

416

475

535

590

695

800

857

920

1020

1125

327

387

438

477

560

690

729

785

900

990

78

102

114

127

154

165

180

180

180

200

675

817

877

1008

1180

1355

1445

1495

1625

1802

271

343

366

421

493

580

656

630

690

790

324

369

406

485

570

574

615

669

671

842

32

35

38

45

50

70

70

80

80

90

19.5

-

-

-

-

-

-

-

-

-

45

60

60

60

60

120

120

140

140

140

-

5

5

5

5

5

5

5.5

5.5

5.5

-

10

10

10

10

10

10

14

14

14

F10

F14

F14

F16

F16

F25

F25

F25

F30

F30

125

175

175

230

230

230

300

300

300

300

102

140

140

190

190

190

250

250

250

250

4

4

4

6

6

6

6

6

6

6

12

18

18

19

19

18.5

22

22

22

22

20

23

23

34

34

35

35

35

38

40

43

63.5

99

114.5

214.5

377

460

542

699

977

Unit(mm)

ØU G I Y K Type ØN ØP m Øsmm

DimensionsSize

14″350

16″400

18″450

20″500

22″550

24″600

28″700

30″750

32″800

36″900

40″1000

GEAR

HAPW

657270300

807330400

867330400

1013330400

1059330400

1172330400

1310320700

1355320700

1455320700

1510330800

1775330800

Inchmm

Size 16″~ 40″

ØU

ØPØN

ØdØD

L

G

Y

KI

I

O

Top flange

Flange

Centring:ØCHoles dia:ØENo.of tap holes:F

h2

Hh1

m-ØS

45°

ØU

ØPØN

ØdØD

O

Top flange

Flange


h2

Hh1

m-ØP45°

200A~300A

L

G

HA HA

ØW

P

P

HA

ØW

PUnit(mm)



DK DK



O WT(kg)Inch

1 ½″

2″

2½″

3″

4″

5″

6″

8″

10″

12″

40

50

65

80

100

125

150

200

250

300

86

105

114

129

155

180

207

260

331

377

40

52

65

80

100

125

150

198

248

298

41

43

46

46

52

56

56

60

68

78

205

227

241

263

290

319

347

433

546

601

58

66.5

71

83

95

110

124

163

227

252

124

130.5

140

150

163

178

191

238

285

315

10

14

14

14

16

19

19

22

28

28

8

10

10

10

12

15

15

18

20

20

F07

F07

F07

F07

F07

F07

F07

F07

F10

F10

90

90

90

90

90

90

90

90

125

125

70

70

70

70

70

70

70

70

102

102

4

4

4

4

4

4

4

4

4

4

9

9

9

9

9

9

9

9

12

12

10

11

11

11

11

12

12

13

15

15

3.1

3.7

4

4.4

5.9

8.9

9

11

20

31.5

Unit(mm)


Unit(mm)



0706

WAFER BODYWAFER BODY

DimensionsSize

2″50

2.5″65

3″80

4″100

5″125

6″150

8″200

10″250

12″300

LEVERHAP

228210

246210

268210

292262

327262

358.5262

445297

GEAR

HAPW

254150150

264150150

280150150

316150150

351150150

382.5150150

469225190

568270250

636270250

Inchmm



OWT(kg)Inch

14″

16″

18″

20″

24″

28″

30″

32″

36″

40″

350

400

450

500

600

700

750

800

900

1000

416

475

535

590

695

800

857

920

1020

1125

327

387

438

477

560

690

729

785

900

990

78

102

114

127

154

165

180

180

180

200

675

817

877

1008

1180

1355

1445

1495

1625

1802

271

343

366

421

493

580

656

630

690

790

324

369

406

485

570

574

615

669

671

842

32

35

38

45

50

70

70

80

80

90

19.5

-

-

-

-

-

-

-

-

-

45

60

60

60

60

120

120

140

140

140

-

5

5

5

5

5

5

5.5

5.5

5.5

-

10

10

10

10

10

10

14

14

14

F10

F14

F14

F16

F16

F25

F25

F25

F30

F30

125

175

175

230

230

230

300

300

300

300

102

140

140

190

190

190

250

250

250

250

4

4

4

6

6

6

6

6

6

6

12

18

18

19

19

18.5

22

22

22

22

20

23

23

34

34

35

35

35

38

40

43

63.5

99

114.5

214.5

377

460

542

699

977

Unit(mm)


DimensionsSize

14″350

16″400

18″450

20″500

22″550

24″600

28″700

30″750

32″800

36″900

40″1000

GEAR

HAPW

657270300

807330400

867330400

1013330400

1059330400

1172330400

1310320700

1355320700

1455320700

1510330800

1775330800

Inchmm

Size 16″~ 40″

ØU

ØPØN

ØdØD

L

G

Y

KI

I

O

Top flange

Flange


h2

Hh1

m-ØS

45°

ØU

ØPØN

ØdØD

O

Top flange

Flange


h2

Hh1

m-ØP

45°

200A~300A

L

G

HA HA

ØW

P

P

HA

ØW

PUnit(mm)



DK DK



O WT(kg)Inch

1 ½″

2″

2½″

3″

4″

5″

6″

8″

10″

12″

40

50

65

80

100

125

150

200

250

300

86

100

112

126

153

182

210

255

328

374

40

52

65

80

100

125

150

198

248

298

41

43

46

46

52

56

56

60

68

78

205

235

237

255

292

317

357

412

519

588

58

72.5

75.5

82

99.5

111

134

163

218

249

124

130.5

129.5

143

160.5

177

191

217

267

295

10

14

14

14

16

19

19

22

28

28

8

10

10

10

12

15

15

18

20

20

F07

F07

F07

F07

F07

F07

F07

F07

F10

F10

90

90

90

90

90

90

90

90

125

125

70

70

70

70

70

70

70

70

102

102

4

4

4

4

4

4

4

4

4

4

9

9

9

9

9

9

9

9

12

12

10

11

11

11

11

12

12

13

15

15

3.5

4.1

5.5

6.8

8.6

10.5

12.5

21.4

29.3

44

Unit(mm)


0908

FULL LUG BODYFULL LUG BODY

DimensionsSize

LEVERHAP

233227

245227

262227

292285

318285

359285

431285

GEAR

HAPW

257130150

265130150

280130150

314130150

359160190

397160190

452210250

553210250

614270300

Inchmm



O WT(kg)Inch

14″16″18″20″24″28″30″32″36″40″

350

400

450

500

600

700

750

800

900

1000

416

475

535

586

695

800

857

920

1020

1125

327

387

438

477

560

690

729

785

900

990

78

102

114

127

154

165

180

180

180

200

675

817

877

1008

1180

1355

1445

1495

1625

1802

271

343

366

421

493

580

656

630

690

790

324

369

406

485

570

574

615

669

671

842

32

35

38

45

50

70

70

80

80

90

19.5

-

-

-

-

-

-

-

-

-

45

60

60

60

60

120

120

140

140

140

-

5

5

5

5

5

5

5.5

5.5

5.5

-

10

10

10

10

10

10

14

14

14

F10

F14

F14

F16

F16

F25

F25

F25

F30

F30

125

175

175

230

230

230

300

300

300

300

102

140

140

190

190

190

250

250

250

250

4

4

4

6

6

6

6

6

6

6

12

18

18

19

19

18.5

22

22

22

22

20

23

23

34

34

35

35

35

38

40

62.2

112

153

199

283

490

598

677

874

1221

Unit(mm)


DimensionsSize

GEARHAPW

657270300

807330400

867330400

1013330400

1059330400

1172330400

1310320700

1355320700

1455320700

1510330800

1775330800

Inchmm

ØU

ØPØN

Ød

ØDL

G

O

Top flange

Flange

Centring:ØCBolt Dia:E(M)No.of tap holes:Fh2

H

h1

m-ØS

45°

Size 10″~ 12″

ØU

ØPØN

Ød

ØD

L

GY

KI

I

O

Top flange

Flange

Centring:ØCBolt Dia:E(M)No.of tap holes:F

h2

H

h1

m-ØS

45°

Size 16″~ 40″


Unit(mm)


HA

HA

ØW

PP

HA

ØW

PUnit(mm)

2″50

2.5″65

3″80

4″100

5″125

6″150

8″200

10″250

12″300

14″350

16″400

18″450

20″500

22″550

24″600

28″700

30″750

32″800

36″900

40″1000

Inchmm



DK DK



O WT(kg)Inch

1 ½″

2″

2½″

3″

4″

5″

6″

8″

10″

12″

40

50

65

80

100

125

150

200

250

300

86

100

112

126

153

182

210

255

328

374

40

52

65

80

100

125

150

198

248

298

41

43

46

46

52

56

56

60

68

78

205

235

237

255

292

317

357

412

519

588

58

72.5

75.5

82

99.5

111

134

163

218

249

124

130.5

129.5

143

160.5

177

191

217

267

295

10

14

14

14

16

19

19

22

28

28

8

10

10

10

12

15

15

18

20

20

F07

F07

F07

F07

F07

F07

F07

F07

F10

F10

90

90

90

90

90

90

90

90

125

125

70

70

70

70

70

70

70

70

102

102

4

4

4

4

4

4

4

4

4

4

9

9

9

9

9

9

9

9

12

12

10

11

11

11

11

12

12

13

15

15

3.5

4.1

5.5

6.8

8.6

10.5

12.5

21.4

29.3

44

Unit(mm)


0908

FULL LUG BODYFULL LUG BODY

DimensionsSize

LEVERHAP

233227

245227

262227

292285

318285

359285

431285

GEAR

HAPW

257130150

265130150

280130150

314130150

359160190

397160190

452210250

553210250

614270300

Inchmm



O WT(kg)Inch

14″16″18″20″24″28″30″32″36″40″

350

400

450

500

600

700

750

800

900

1000

416

475

535

586

695

800

857

920

1020

1125

327

387

438

477

560

690

729

785

900

990

78

102

114

127

154

165

180

180

180

200

675

817

877

1008

1180

1355

1445

1495

1625

1802

271

343

366

421

493

580

656

630

690

790

324

369

406

485

570

574

615

669

671

842

32

35

38

45

50

70

70

80

80

90

19.5

-

-

-

-

-

-

-

-

-

45

60

60

60

60

120

120

140

140

140

-

5

5

5

5

5

5

5.5

5.5

5.5

-

10

10

10

10

10

10

14

14

14

F10

F14

F14

F16

F16

F25

F25

F25

F30

F30

125

175

175

230

230

230

300

300

300

300

102

140

140

190

190

190

250

250

250

250

4

4

4

6

6

6

6

6

6

6

12

18

18

19

19

18.5

22

22

22

22

20

23

23

34

34

35

35

35

38

40

62.2

112

153

199

283

490

598

677

874

1221

Unit(mm)


DimensionsSize

GEARHAPW

657270300

807330400

867330400

1013330400

1059330400

1172330400

1310320700

1355320700

1455320700

1510330800

1775330800

Inchmm

ØU

ØPØN

Ød

ØDL

G

O

Top flange

Flange

Centring:ØCBolt Dia:E(M)No.of tap holes:Fh2

H

h1

m-ØS

45°

Size 10″~ 12″

ØU

ØPØN

Ød

ØD

L

GY

KI

I

O

Top flange

Flange


h2

H

h1

m-ØS45°

Size 16″~ 40″


Unit(mm)


HA

HA

ØW

PP

HA

ØW

PUnit(mm)

2″50

2.5″65

3″80

4″100

5″125

6″150

8″200

10″250

12″300

14″350

16″400

18″450

20″500

22″550

24″600

28″700

30″750

32″800

36″900

40″1000

Inchmm



DK DK


Ød L H h1 h2Stem Top flange to ISO 5211

O WT(kg)Inch

1 ½″

2″

2½″

3″

4″

5″

6″

8″

10″

12″

40

50

65

80

100

125

150

200

250

300

40

52

65

80

100

125

150

198

248

298

41

43

46

46

52

56

56

60

68

78

205

240

247

266

298

331

363

412

506

538

58

77.5

87.5

92.5

105

125

140

163

205

248.5

124

130.5

129.5

143

160.5

177

191

217

267

295

10

14

14

14

16

19

19

22

28

28

8

10

10

10

12

15

15

18

20

20

F07

F07

F07

F07

F07

F07

F07

F07

F10

F10

90

90

90

90

90

90

90

90

125

125

70

70

70

70

70

70

70

70

102

102

4

4

4

4

4

4

4

4

4

4

9

9

9

9

9

9

9

9

12

12

10

11

11

11

11

12

12

13

15

15

6.2

6.8

8.9

10.2

14.5

16.8

19.8

31.2

46.2

58.8

Unit(mm)


DK Co., Ltd. 11DK Co., Ltd.10

DOUBLE FLANGE BODYDOUBLE FLANGE BODY

DimensionsSize

LEVERHAP

238.5227

257.5227

272.5227

298285

333285

365285

433285

GEARHAPW

262.5130150

277.5130150

290.5130150

320130150

374160190

403160190

454210250

558220250

602.5270300

Inchmm



O WT(kg)Inch

14″

16″

18″

20″

24″

28″

30″

32″

36″

40″

350

400

450

500

600

700

750

800

900

1000

327

387

438

477

560

690

729

785

900

990

78

102

114

127

154

165

180

180

180

200

675

817

877

1008

1180

1355

1445

1495

1625

1802

271

343

366

421

493

580

656

630

690

790

324

369

406

485

570

574

615

669

671

842

32

35

38

45

50

70

70

80

80

90

19.5

-

-

-

-

-

-

-

-

-

45

60

60

60

60

120

120

140

140

140

-

5

5

5

5

5

5

5.5

5.5

5.5

-

10

10

10

10

10

10

14

14

14

F10

F14

F14

F16

F16

F25

F25

F25

F30

F30

125

175

175

230

230

230

300

300

300

300

102

140

140

190

190

190

250

250

250

250

4

4

4

6

6

6

6

6

6

6

12

18

18

19

19

18.5

22

22

22

22

20

23

23

34

34

35

35

35

38

40

66.6

96

147

161

292

539

658

745

944

1307

Unit(mm)


DimensionsSize

GEARHAPW

657270300

807330400

867330400

1013330400

1059330400

1172330400

1310320400

1355320400

1455320400

1510330800

1775330800

Inchmm

ØU

ØPØN

Ød L

G

O

Top flange

Flange


h2

H

h1

m-ØS

45°

ØU

ØPØN

Ød L

GY

KI

I

O

Top flange

Flange


h2

H

h1

m-ØS

45°

Size 16″~ 40″


Unit(mm)


HA

HA

ØW

PP

HA

ØW

PUnit(mm)

2″50

2.5″65

3″80

4″100

5″125

6″150

8″200

10″250

12″300

14″350

16″400

18″450

20″500

22″550

24″600

28″700

30″750

32″800

36″900

40″1000

Inchmm


DK DK



O WT(kg)Inch

1 ½″

2″

2½″

3″

4″

5″

6″

8″

10″

12″

40

50

65

80

100

125

150

200

250

300

40

52

65

80

100

125

150

198

248

298

41

43

46

46

52

56

56

60

68

78

205

240

247

266

298

331

363

412

506

538

58

77.5

87.5

92.5

105

125

140

163

205

248.5

124

130.5

129.5

143

160.5

177

191

217

267

295

10

14

14

14

16

19

19

22

28

28

8

10

10

10

12

15

15

18

20

20

F07

F07

F07

F07

F07

F07

F07

F07

F10

F10

90

90

90

90

90

90

90

90

125

125

70

70

70

70

70

70

70

70

102

102

4

4

4

4

4

4

4

4

4

4

9

9

9

9

9

9

9

9

12

12

10

11

11

11

11

12

12

13

15

15

6.2

6.8

8.9

10.2

14.5

16.8

19.8

31.2

46.2

58.8

Unit(mm)



DOUBLE FLANGE BODYDOUBLE FLANGE BODY

DimensionsSize

LEVERHAP

238.5227

257.5227

272.5227

298285

333285

365285

433285

GEARHAPW

262.5130150

277.5130150

290.5130150

320130150

374160190

403160190

454210250

558220250

602.5270300

Inchmm



O WT(kg)Inch

14″

16″

18″

20″

24″

28″

30″

32″

36″

40″

350

400

450

500

600

700

750

800

900

1000

327

387

438

477

560

690

729

785

900

990

78

102

114

127

154

165

180

180

180

200

675

817

877

1008

1180

1355

1445

1495

1625

1802

271

343

366

421

493

580

656

630

690

790

324

369

406

485

570

574

615

669

671

842

32

35

38

45

50

70

70

80

80

90

19.5

-

-

-

-

-

-

-

-

-

45

60

60

60

60

120

120

140

140

140

-

5

5

5

5

5

5

5.5

5.5

5.5

-

10

10

10

10

10

10

14

14

14

F10

F14

F14

F16

F16

F25

F25

F25

F30

F30

125

175

175

230

230

230

300

300

300

300

102

140

140

190

190

190

250

250

250

250

4

4

4

6

6

6

6

6

6

6

12

18

18

19

19

18.5

22

22

22

22

20

23

23

34

34

35

35

35

38

40

66.6

96

147

161

292

539

658

745

944

1307

Unit(mm)


DimensionsSize

GEARHAPW

657270300

807330400

867330400

1013330400

1059330400

1172330400

1310320400

1355320400

1455320400

1510330800

1775330800

Inchmm

ØU

ØPØN

Ød L

G

O

Top flange

Flange


h2

H

h1

m-ØS

45°

ØU

ØPØN

Ød L

GY

KI

I

O

Top flange

Flange


h2

H

h1

m-ØS45°

Size 16″~ 40″


Unit(mm)


HA

HA

ØW

PP

HA

ØW

PUnit(mm)

2″50

2.5″65

3″80

4″100

5″125

6″150

8″200

10″250

12″300

14″350

16″400

18″450

20″500

22″550

24″600

28″700

30″750

32″800

36″900

40″1000

Inchmm


DK DK

13

TWO PIECE BODY TEFLON LINED

12

TWO PIECE SPLIT BODY TEFLONⓇ LINED TWO PIECE BODY TEFLON LINEDTWO PIECE SPLIT BODY TEFLONⓇ LINED

SizeØD Ød L H h1 h2

Stem Top flange to ISO 5211O WT

(kg)Inch

2″

2½″

3″

4″

5″

6″

8″

10″

12″

14″

16″

18″

20″

50

65

80

100

125

150

200

250

300

350

400

450

500

102

115

128

153

183

210

259

328

374

416

475

535

586

52

65

80

100

125

150

198

248

298

327

387

438

477

43

46

46

52

56

56

60

68

78

78

102

114

127

227

241

263

290

319

347

433

546

601

675

817

877

1008

66.5

71

83

95

110

124

163

227

252

271

343

366

421

130.5

140

150

163

178

191

238

285

315

324

369

406

485

14

14

14

16

19

19

22

28

28

32

35

38

45

10

10

10

12

15

15

18

20

20

19.5

-

-

-

38

38

38

38

38

38

38

45

45

45

60

60

60

-

-

-

-

-

-

-

-

-

-

5

5

5

-

-

-

-

-

-

-

-

-

-

10

10

10

F07

F07

F07

F07

F07

F07

F07

F10

F10

F10

F14

F14

F16

90

90

90

90

90

90

90

125

125

125

175

175

230

70

70

70

70

70

70

70

102

102

102

140

140

190

4

4

4

4

4

4

4

4

4

4

4

4

6

9

9

9

9

9

9

9

12

12

12

18

18

19

11

11

11

11

12

12

13

15

15

20

23

23

34

4.3

4.5

4.9

6.3

8.9

9.4

11.5

21

32

43.6

64

99.7

115

Unit(mm)


Valve dimensionsCoated surface

Extended covering

Stainless steel disc

Stainless steel shaft

ØU

ØPØN

Ød

ØD L

G

O

I

Top flange

Flange


h2

H

h1

m-ØS

45°

Size 8″

Size 16″~ 24″

Y

KI

The seat configuration of the resiliency of elastomer back-up ringand the chemical resistance of a TeflonⓇ makes valve with moresuitable for application such as toxic and corrosive media whereelastomers are unsuitable.One-piece disc/shaft provide the minimum obstruction to fluid flowsince shaft-attachment obstruction is eliminated. This results inexcellent flow characteristics and makes a valve suited for theprocessing industries because fluid contact is limited to the seat anddisc only

Cut away PFA coated Disc-StemStainless steel with finish allows proper secondary seal and bearing conditions at seat holeExtended covering from primary seal through secondary seal into seat hole area assures stem isolationComplete encapsulation affords complete isolation of steel discPFA-covered disc suitable not only for chemically resistant but for handling abrasives in the processing industries

Material standardBodyDiscSeat

Cast iron - Aluminium - Ductile ironHard rubber lined steel - SS 304-316All kinds of rubber

ApplicationChemicals, acids, corrosive products

General CharacteristicsTwo piece-bodyBi-directionalCentred butterfly1 piece stem and burrerfly

ConstructionBody cast steel / stainless steelStainless steel butterfly PTFF linedPTFF sleeve with rubber backup pad

CoatingPainting: oven backed epoxy powder coating, 150

Working Conditions5.5 Bar pressure

Hydraulic Tests1.1 times the maximum working pressure

ConnectionBetween flanges ISO PN 10/16, ANSI B 16.5.150

Handling PossibilitiesLeverGear box with opening indicatorSingle or double effect pneumatic actuatorElectric motors 220/380 V mono/tri

TeflonⓇ covered one-piece stainless steel discand shaft

One-piece Stainless steel disc/shaft



DK DK

13

TWO PIECE BODY TEFLON LINED

12

TWO PIECE SPLIT BODY TEFLONⓇ LINED TWO PIECE BODY TEFLON LINEDTWO PIECE SPLIT BODY TEFLONⓇ LINED

SizeØD Ød L H h1 h2

Stem Top flange to ISO 5211O WT

(kg)Inch

2″

2½″

3″

4″

5″

6″

8″

10″

12″

14″

16″

18″

20″

50

65

80

100

125

150

200

250

300

350

400

450

500

102

115

128

153

183

210

259

328

374

416

475

535

586

52

65

80

100

125

150

198

248

298

327

387

438

477

43

46

46

52

56

56

60

68

78

78

102

114

127

227

241

263

290

319

347

433

546

601

675

817

877

1008

66.5

71

83

95

110

124

163

227

252

271

343

366

421

130.5

140

150

163

178

191

238

285

315

324

369

406

485

14

14

14

16

19

19

22

28

28

32

35

38

45

10

10

10

12

15

15

18

20

20

19.5

-

-

-

38

38

38

38

38

38

38

45

45

45

60

60

60

-

-

-

-

-

-

-

-

-

-

5

5

5

-

-

-

-

-

-

-

-

-

-

10

10

10

F07

F07

F07

F07

F07

F07

F07

F10

F10

F10

F14

F14

F16

90

90

90

90

90

90

90

125

125

125

175

175

230

70

70

70

70

70

70

70

102

102

102

140

140

190

4

4

4

4

4

4

4

4

4

4

4

4

6

9

9

9

9

9

9

9

12

12

12

18

18

19

11

11

11

11

12

12

13

15

15

20

23

23

34

4.3

4.5

4.9

6.3

8.9

9.4

11.5

21

32

43.6

64

99.7

115

Unit(mm)


Valve dimensionsCoated surface

Extended covering

Stainless steel disc

Stainless steel shaft

ØU

ØPØN

Ød

ØD L

G

O

I

Top flange

Flange


h2

H

h1

m-ØS45°

Size 8″

Size 16″~ 24″

Y

KI

The seat configuration of the resiliency of elastomer back-up ringand the chemical resistance of a TeflonⓇ makes valve with moresuitable for application such as toxic and corrosive media whereelastomers are unsuitable.One-piece disc/shaft provide the minimum obstruction to fluid flowsince shaft-attachment obstruction is eliminated. This results inexcellent flow characteristics and makes a valve suited for theprocessing industries because fluid contact is limited to the seat anddisc only

Cut away PFA coated Disc-StemStainless steel with finish allows proper secondary seal and bearing conditions at seat holeExtended covering from primary seal through secondary seal into seat hole area assures stem isolationComplete encapsulation affords complete isolation of steel discPFA-covered disc suitable not only for chemically resistant but for handling abrasives in the processing industries

Material standardBodyDiscSeat

Cast iron - Aluminium - Ductile ironHard rubber lined steel - SS 304-316All kinds of rubber

ApplicationChemicals, acids, corrosive products

General CharacteristicsTwo piece-bodyBi-directionalCentred butterfly1 piece stem and burrerfly

ConstructionBody cast steel / stainless steelStainless steel butterfly PTFF linedPTFF sleeve with rubber backup pad

CoatingPainting: oven backed epoxy powder coating, 150

Working Conditions5.5 Bar pressure

Hydraulic Tests1.1 times the maximum working pressure

ConnectionBetween flanges ISO PN 10/16, ANSI B 16.5.150

Handling PossibilitiesLeverGear box with opening indicatorSingle or double effect pneumatic actuatorElectric motors 220/380 V mono/tri

TeflonⓇ covered one-piece stainless steel discand shaft

One-piece Stainless steel disc/shaft



DK

DK Co., Ltd.14

DOUBLE ECCENTRIC HIGH PERFORMANCE

DK Co., Ltd. 15

DK

WAFER BODY (SEMI LUG)

Product range40mm up to 1000mm(1½″~40″)

Pressure Temperature rangeMetal seat type WMP 4.90Mpa (50kgf/㎠) WMT 450 deg. Cels.Teflon seat type WMP 1.96Mpa (20kgf/㎠) WMT 230 deg. Cels.

Flange connectionsISO PN 10, 16, 20 and 25 MSS SP 44 CL. 150, 300ANSI B 16.1 CL. ANSI B 16.5 CL. 150, 300BS 4504, PN 10, PN 16 BS 10 Table D and EAS2129 Table D and E JIS B 2210 10K, 16K and 20K

Test and Inspection Conforms to API 598Body test 1.5 times the maximum working pressure with water. The test isperformed on the assembled valve with the disc in half open positionSeat and shaft seal test 1.1 times the maximum working pressure. The shaftseal test and inspection is conducted simultaneously with seat test

FeaturesDouble eccentric disc and stemSpherical sealing structureLow operating torqueLow friction and wearRenewable catridge seat

ApplicationChemical processing Power plantHydrocarbon processingShipbuilding

After a fire when the R-PTFE seat has burnedaway, the supplementary metal sealing seatwill be activated automatically and preventfrom excessive flow

Specifications

Seat Construction

Fire-safe seat

Body

Disc

Stem

Seat

Ductile ironCarbon steelStainless steelAluminum bronze

Stainless steelAluminum bronze

Stainless steelStainless steelStainless steelStainless steelK-Monel

ElastomerTeflonⓇ

Metal

RTFE Seat

ASTM A 536 Gr 65-45-12ASTM A 216 WCBASTM A 351 Gr CF8-CF8MASTM B 148 C95500

ASTM A 351 Gr CF8-8MASTM B 148 C95500

ASTM A 276 304ASTM A 276 410ASTM A 276 31617-4PH ASTM A 564 TYPE 630ASTM B 164

Materials

Flat Metal Seat Rubber Seat

Before burnt After burnt

Fire Safe PTFE with Metal


Ød L H1 H2Stem Top flange to ISO 5211

Inch

2″

2½″

3″

4″

5″

6″

8″

10″

12″

14″

16″

18″

20″

22″

24″

26″

28″

30″

32″

36″

40″

50

65

80

100

125

150

200

250

300

350

400

450

500

550

600

650

700

750

800

900

1000

55

70

84

104

130

155

205

225

305

340

380

430

480

540

590

640

690

736

786

890

980

60

48

48

54

57

57

63

71

81

92

102

114

127

170

154

210

220

197

190

216

62

72

82

92

110

130

180

238

275

310

325

365

405

410

470

487

510

574

580

678

724

182

192

202

212

232

247

297

350

370

445

480

510

525

555

580

664

686

735

735

890

950

40

40

40

40

40

40

55

60

65

80

80

80

95

95

95

95

95

95

95

95

95

14

14

14

14

18

18

22

28

32

35

40

45

50

60

60

65

70

75

80

90

100

5×5×29

5×5×29

5×5×29

5×5×29

5×5×29

5×5×29

6×6×44

8×7×44

8×7×44

10×8×44

10×8×69

14×9×69

18×11×99

18×11×99

18×11×99

18×11×99

20×12×99

20×12×99

20×14×99

25×14×119

28×16×129

F07

F07

F07

F07

F07

F07

F07

F10

F10

F10

F14

F14

F16

F16

F16

F16

F25

F25

F25

F30

F30

82

82

82

82

82

82

111

132

132

156

156

156

200

200

200

200

300

300

300

70

70

70

70

70

70

96

114

114

136

136

136

180

180

180

180

270

270

270

70

70

70

70

70

70

102

102

102

140

140

140

165

165

165

165

254

254

254

298

298

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

8

8

8

8

8

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

18

18

18

22

22

Unit(mm)

ØU KeyI ØsnØPBATypemm

ØP

ØU

Ød

n-ØSKEY

FLOW

L

Hole(Tap)

A

B

H2

H1

I

Size 2″~ 6″

Size 8″~ 12″


DK Co., Ltd.16

DK

FULL LUG / FLANGE BODY

DK Co., Ltd. 17

DK

TRIPLE OFFSET METAL SEAT

Product range80mm ~ 1200mm

Design standardANSI B16.34 BS5155, MSS SP68, API609

Flange connectionsAPI 609, BS 5155, DIN 3840

Pressure Temperature rangeASME/ANSI 16.34

Face to Face DimensionANSI B16.10 ISO 5752, API 609 BS 5155

TestingAPI 598, MSS-SP 61, ANSI 16.104

Specifications Triple offset Design Princlples

Zero leakage (bubble tightness)Shut off and throttling of gaseous and liquid mediaLow operating torqueLong sevice lifeHigh temperature compatibility

Features

Body

Disc

Stem

Seat

Carbon Steel, Ductile iron, Stainless Steel

Aluminium Bronze

Stainless steel

Stellite overlay, Laminated Metal Seat, Solid Metal Seat

Material

Characteristics and MeritsExcellent durability of seat part and low operating torque by non-rubbing characteristics with triple offset constructionBi-directional zero leakage service by resilient metal sealing and torque seatingUnrestricted selection of face to face dimensions for API, ASME(ANSI), BS, ISO, etc. and perfect interchangeability of gate, ball, plug, high performance butterfly, and other valvesLow emission by quarter turn construction and good performance at automation by virtue of low operating torque and low cost

The valve stem is offset by seat(1st offset) and the valve seat surface centerline is offset against the center line of pipe (2nd offset) and the conical axisis offset by valve center line (3rd offset: inclined cone) The 3rd offsetcompletely eliminates rubbing.

The seat surfaces of body and seal ring in triple offset valve contact withthe inclined “cone-in cone” and this design provides excellent sealing andseat part durability by slight wedging effect.

Body SeatThe valve seat shall be integrated with the bodyStellite or stainless steel shall be applied on the seating surfaces of valve bodyThe valve seat is designed for inclined cone to ensure non-rubbing, non-jamming, bi-directional shutoff, and zero leakage

Seal Ring (Laminated)The seal ring shall be resilient stainless steel lamalla, alternated by graphite, aramid fiber and cermic fiber layersThe surface contacting between seal ring and body seat is an inclined cone type and the inclined angle generates a slight wedging effectWith a seat retainer ring bolted to the disc, the seal ring is fixed to disc not so tightly that it can be replaced easily

Laminated Metal Seat316ss+ Graphite Laminated

Hard Faced Seat Solid Metal Seat


Ød L H1 H2Stem Top flange to ISO 5211

Inch

2″

2½″

3″

4″

5″

6″

8″

10″

12″

14″

16″

18″

20″

22″

24″

26″

28″

30″

32″

36″

40″

50

65

80

100

125

150

200

250

300

350

400

450

500

550

600

650

700

750

800

900

1000

55

70

84

104

130

155

205

225

305

340

380

430

480

540

590

640

690

736

786

890

980

60

48

48

54

57

57

63

71

81

92

102

114

127

170

154

210

220

197

190

216

62

72

82

92

110

130

180

238

275

310

325

365

405

410

470

487

510

574

580

678

724

182

192

202

212

232

247

297

350

370

445

480

510

525

555

580

664

686

735

735

890

950

40

40

40

40

40

40

55

60

65

80

80

80

95

95

95

95

95

95

95

95

95

14

14

14

14

18

18

22

28

32

35

40

45

50

60

60

65

70

75

80

90

100

5×5×29

5×5×29

5×5×29

5×5×29

5×5×29

5×5×29

6×6×44

8×7×44

8×7×44

10×8×44

10×8×69

14×9×69

18×11×99

18×11×99

18×11×99

18×11×99

20×12×99

20×12×99

20×14×99

25×14×119

28×16×129

F07

F07

F07

F07

F07

F07

F07

F10

F10

F10

F14

F14

F16

F16

F16

F16

F25

F25

F25

F30

F30

82

82

82

82

82

82

111

132

132

156

156

156

200

200

200

200

300

300

300

70

70

70

70

70

70

96

114

114

136

136

136

180

180

180

180

270

270

270

70

70

70

70

70

70

102

102

102

140

140

140

165

165

165

165

254

254

254

298

298

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

8

8

8

8

8

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

18

18

18

22

22

Unit(mm)

ØU KeyI ØsnØPBATypemm

ØP

ØU

Ød

n-ØS KEY

FLOW

L

Hole(Tob)

A

B

H2

H1

I

ØP

ØU

n-ØS

Hole(Tob)

A

B

H2

H1

I



DK

150LB / 300LB

DK

600LB / 900LB

150LB Manual Gear Operating TypeSize

H3H2H1HL ( F TO F ) WEIGHT (kg)

Inch

6″8″10″12″14″16″18″20″24″28″30″32″36″40″42″48″

150200250300350400450500600700750800900100010501200

300310335390420500515565635775785840910925980

1140

2452602853353654354525005706856957508208358601020

180195225265290340360395465570600630690720750845

3535658080808080

110130130130160175175200

5764718192102114127154165165190200216251276

5764718192102114127154165165190200216251276

140152165178190216222229267292318318330410410470

206206206230230279279312312371371425425425513513

300300300400400450450560560630630710710710800800

2045578513318621333445571886410901418174321083004

22476191142199229364492777934

11191553194323433284

4889

112161228303364499699860108512411716220824883440

Unit(mm)

P ØWFLANGELUGWAFER FLANGELUGWAFERmm


Inch

6″8″10″12″14″16″18″20″24″

150200250300350400450500600

365380465520535675715760840

310325400455470585625670750

23824831634937447447650455

808080110110130130130180

78102117140155178200216232

78102117140155178200216232

210230250270290310330350390

230230279312312371371425425

400400450560560630630710710

6592134224285455555694

1093

721021872593295206358041243

135162268369364632739879

1423

Unit(mm)

mm


Inch

6″8″10″12″14″16″18″20″24″

150200250300350400450500600

400445500590635730780830950

335380435500545640690710820

238281358383419455503550656

8080110110130130180180200

104112135170173210228250275

104112135170173210228250275

250310350380400430460490530

279312312371371425425513513

450560560630630710710800800

89134224298376570691905

1317

10015125635244066382410691704

184256425496656834

104412732506

Unit(mm)

mm


Inch

6″8″10″12″14″16″18″20″24″28″30″32″36″40″42″48″

150200250300350400450500600700750800900100010501200

330350395450490545605645740910940970

1050111011601270

28029534039542548054058065082085088096099010501150

199218251296331377410440515640690720780800840950

6580808080

110110130130200200200200200200250

59738392117133149159181229241241260300300320

59738392117133149159181229241241260300300320

140152165178190216222229267292318318330410410470

206230230230279279312312371371425425425513513536

300400400400450450560560630630710710710800800900

36511001341962323604576701193146316612281221424393384

3956112150229277433549805

1363165818562511242526493684

7693

1642222983574996219161417171519572590258528494106

Unit(mm)

mm


P ØWFLANGELUGWAFER FLANGELUGWAFER





Weight and dimensions are approximate


* Not specified class and size, please contact sales department



P

ØW

L

P

H

H1

H2

H3

L

H1

H2

H3

L

H1

H2

H3

L



DK

DUAL PLATE CHECK VALVEWafer Type Class 125~500

Bolts LengthDimensions

50( 2″)

125250150300

400-600900

1500

FFFF

RF·R-22RF·R-23RF·R-23RF·R-24RF·R-24

105111105111111143143

54546060607070

60606060606060

120.6127.0120.6127.0127.0165.1165.1

4848888

5/85/85/85/85/87/87/8

145170155155175225225

--

155175180225225

3433367

500( 20″)

125250150300400600900

FFFF


606654606654648683699

213292219292368368451

508508508508508508508

635685.8635

685.8685.8723.9749.3

20242024242420

1 ⅛1 ¼1 ⅛1 ¼1 ½1 ⅝

2

375520380520670670740

--

395510660660745

1803732433734216401055

600( 24″)

125250150300400600900

FFFF


718775718775768791838

222318222318394438495

610610610610610610610

749.3812.8749.3812.8812.8838.12901.7

20242024242420

1 ¼1 ½1 ¼1 ½1 ¾1 ⅞2 ½

435585435582685785950

--

425575675775965

2585413945987439811700

700( 28″)

125150

FFRF

832832

321321

711711

840840

2424

1 ¼1 ¼

505505

--

634692

750( 30″)

125150300

FFRF

RF RJ95

883883953

305330398

762762762

914.4914.4966.5

282828

1 ¼1 ¼1 ¾

495580675

--

750

450580928

65( 2½″)

125250150300

400-600900

1500

FFFF


124130124130130165165

60606767678383

73737373737373

139.7149.3139.7149.3149.3190.5190.5

4848888

5/83/45/83/43/411

150180165175195250250

--

165195195250250

4544478

Unit(mm)

Weight(kg)

BoltsDiameter

Number ofBolts

Flange BoltCircle

Size Series Flange FaceFF·RFØCBØA RJ


Unit(mm)

Weight(kg)

BoltsDiameter

Number ofBolts

Flange BoltCircle


VALVE SIZE 1 1/2″, 2″, 3″, ……, 24″

FLANGESTANDARD ANSI B 16.5

26″, 28″, ……, 60″

ASME B 16.47 SERIES A( MSS SP44)

72″, 90″

AWWA C207 CLASS D( 175 ~150PSI)

80( 3″)

125250150300

400-600900

1500

FFFF


137149137149149168175

67677373738383

89898989898989

152.4168.4152.4168.4168.4190.5203.2

4848888

5/83/45/83/43/47/81 ⅛

160195175190210240270

--

180205210235270

57677

1314

100( 4″)

125250150300400600900

1500

FFFF

RF·R-36RF·R-37RF·R-37RF·R-37RF·R-37RF·R-39

175181175181178194206210

676773737979

102102

114114114114114114114114

190.5200.1190.5200.1200.1215.9234.9241.3

88888888

5/83/45/83/47/87/81 ⅛1 ¼

170205175195220245285310

--

180210220245280305

6888

11121821

150( 6″)

125250150300400600900

1500

FFFF


222257222251248267289283

95959898

136136159159

168168168168168168168168

241.3269.9241.3269.9269.9292.1317.5317.5

8128

1212121212

3/43/43/43/47/81

1 ⅛1 ⅜

190240210235300315370430

--

210250300320360425

1019161931335359

200( 8″)

125250150300400600900

1500

FFFF


279308279308305321359352

127127127127165165206206

219219219219219219219219

298.4330.2298.4330.2330.2349.2393.7393.7

8128

1212121212

3/47/83/47/81

1 ⅛1 ⅜1 ⅝

215280245280350375435505

--

250290345370440510

1936323636688997

250(10″)

125250150300400600900

1500

FFFF


340362340362359400435435

140140146146213213241248

274274274274274274274274

361.9387.5361.9387.5387.5431.8469.9482.6

1216121616161612

7/81

7/81

1 ⅛1 ¼1 ¼1 ⅞

240315280315410435490605

--

280325415440485600

3151475196

104132140

300(12″)

125250150300400600900

1500

FFFF


410422410422419457498521

181181181181229229292305

324324324324324324324324

431.8450.8431.8450.8450.8488.9533.4571.5

1216121616202016

7/81 ⅛7/81 ⅛1 ¼1 ¼1 ⅜

2

280370310360445465560700

--

315375440460555700

56908488

133144169178

Seat Materials Spring Materials

Buna-NNeopreneViton AViton B (FR 58/90 AntiDecompression)Teflon

410 Stainless steel (Weld)316 Stainless steel (Weld)316L Stainless steel (Weld)Stellite No 6 (Weld)Same as bodyTo be specified on P.O

316 Stainless steelInconel 625Inconel x 750MonelAs specified on Purchase Order

350(14″)

125250150300400600900

1500

FFFF


451486451486483492521578

184222184222273273356356

356356356356356356356356

476.2514.3476.2514.3514.3527

558.8635

1220122020202016

11 ⅛

11 ⅛1 ¼1 ⅜1 ½2 ¼

315425315425495520645785

--

350415485510650800

7117697

176198198198198

400(16″)

125250150300400600900

1500

FFFF


514540514540537565575641

191232191232305305384384

406406406406406406406406

539.7517.5539.7571.5571.5603.2615.9704.8

1620162020202016

11 ¼

11 ¼1 ⅜1 ½1 ⅝2 ½

350435350435550585690855

--

340425540575695870

99227159227268288550750

800( 32″)

125150

FFRF

920940

356356

813813

950950

2828

1 ½1 ½

550550

--

533635

900( 36″)

125150300

FFRF

RF 98

104810481117

368387489

914914914

1085.81085.81168.4

323232

1 ½1 ½

2

580605835

---

656685

1609

1000( 40″)

125150

FFRF

11621162

419419

10161016

11601160

2828

1 ½1 ½

645645

--

10651190

1050( 42″)

125150300

FFRFRF

121912191289

432432568

106710671067

1257.31257.31339.8

363636

1 ½1 ½

2

650650890

---

126013862630

1200( 48″)

125150300

FFRFRF

138413841366

524524629

121912191219

1422.41422.41543

444444

1 ½1 ½

2

750750-

---

205521802755

1350 (54″) 150 RF 1549 540 1372 1593.8 44 1 ¾ 815 - 2800

1500 (60″) 150 RF 1715 660 1524 1759 52 1 ¾ - - 3538

1800 (72″) 150 RF 2051 914 1829 2096 60 1 ¾ - - 6350

2250 (90″) 150 RF 2493 1289 2270 2550 68 1 ¼ - - -

450(18″)

125250150300400600900

1500

FFFF


549597549579594613638705

203264203264362362451468

457457457457457457457457

577.8628.6577.8628.6628.6654

685.8774.7

1624162424202016

1 ⅛1 ¼1 ⅛1 ¼1 ⅜1 ⅝1 ⅞2 ¾

370495370495635635800985

--

390485625625800

1005

118301185301401401770980

125( 5″)

125250150300400600

FFFF

RF·R-41RF·R-41RF·R-41RF·R-41

197216197216213241

83838686

105105

141141141141141141

215.9234.9215.9234.9234.9266.7

888888

3/43/43/43/47/81

185220195215260280

--

195230260280

91410141923

B

ØC

ØA



DK

DUAL PLATE CHECK VALVEWafer Type Class 125~500


50( 2″)

125250150300

400-600900

1500

FFFF


105111105111111143143

54546060607070

60606060606060

120.6127.0120.6127.0127.0165.1165.1

4848888

5/85/85/85/85/87/87/8

145170155155175225225

--

155175180225225

3433367

500( 20″)

125250150300400600900

FFFF


606654606654648683699

213292219292368368451

508508508508508508508

635685.8635

685.8685.8723.9749.3

20242024242420

1 ⅛1 ¼1 ⅛1 ¼1 ½1 ⅝

2

375520380520670670740

--

395510660660745

1803732433734216401055

600( 24″)

125250150300400600900

FFFF


718775718775768791838

222318222318394438495

610610610610610610610

749.3812.8749.3812.8812.8838.12901.7

20242024242420

1 ¼1 ½1 ¼1 ½1 ¾1 ⅞2 ½

435585435582685785950

--

425575675775965

2585413945987439811700

700( 28″)

125150

FFRF

832832

321321

711711

840840

2424

1 ¼1 ¼

505505

--

634692

750( 30″)

125150300

FFRF

RF RJ95

883883953

305330398

762762762

914.4914.4966.5

282828

1 ¼1 ¼1 ¾

495580675

--

750

450580928

65( 2½″)

125250150300

400-600900

1500

FFFF


124130124130130165165

60606767678383

73737373737373

139.7149.3139.7149.3149.3190.5190.5

4848888

5/83/45/83/43/411

150180165175195250250

--

165195195250250

4544478

Unit(mm)

Weight(kg)

BoltsDiameter

Number ofBolts

Flange BoltCircle



Unit(mm)

Weight(kg)

BoltsDiameter

Number ofBolts

Flange BoltCircle


VALVE SIZE 1 1/2″, 2″, 3″, ……, 24″

FLANGESTANDARD ANSI B 16.5

26″, 28″, ……, 60″

ASME B 16.47 SERIES A( MSS SP44)

72″, 90″

AWWA C207 CLASS D( 175 ~150PSI)

80( 3″)

125250150300

400-600900

1500

FFFF


137149137149149168175

67677373738383

89898989898989

152.4168.4152.4168.4168.4190.5203.2

4848888

5/83/45/83/43/47/81 ⅛

160195175190210240270

--

180205210235270

57677

1314

100( 4″)

125250150300400600900

1500

FFFF


175181175181178194206210

676773737979

102102

114114114114114114114114

190.5200.1190.5200.1200.1215.9234.9241.3

88888888

5/83/45/83/47/87/81 ⅛1 ¼

170205175195220245285310

--

180210220245280305

6888

11121821

150( 6″)

125250150300400600900

1500

FFFF


222257222251248267289283

95959898

136136159159

168168168168168168168168

241.3269.9241.3269.9269.9292.1317.5317.5

8128

1212121212

3/43/43/43/47/81

1 ⅛1 ⅜

190240210235300315370430

--

210250300320360425

1019161931335359

200( 8″)

125250150300400600900

1500

FFFF


279308279308305321359352

127127127127165165206206

219219219219219219219219

298.4330.2298.4330.2330.2349.2393.7393.7

8128

1212121212

3/47/83/47/81

1 ⅛1 ⅜1 ⅝

215280245280350375435505

--

250290345370440510

1936323636688997

250(10″)

125250150300400600900

1500

FFFF


340362340362359400435435

140140146146213213241248

274274274274274274274274

361.9387.5361.9387.5387.5431.8469.9482.6

1216121616161612

7/81

7/81

1 ⅛1 ¼1 ¼1 ⅞

240315280315410435490605

--

280325415440485600

3151475196

104132140

300(12″)

125250150300400600900

1500

FFFF


410422410422419457498521

181181181181229229292305

324324324324324324324324

431.8450.8431.8450.8450.8488.9533.4571.5

1216121616202016

7/81 ⅛7/81 ⅛1 ¼1 ¼1 ⅜

2

280370310360445465560700

--

315375440460555700

56908488

133144169178

Seat Materials Spring Materials

Buna-NNeopreneViton AViton B (FR 58/90 AntiDecompression)Teflon

410 Stainless steel (Weld)316 Stainless steel (Weld)316L Stainless steel (Weld)Stellite No 6 (Weld)Same as bodyTo be specified on P.O

316 Stainless steelInconel 625Inconel x 750MonelAs specified on Purchase Order

350(14″)

125250150300400600900

1500

FFFF


451486451486483492521578

184222184222273273356356

356356356356356356356356

476.2514.3476.2514.3514.3527

558.8635

1220122020202016

11 ⅛

11 ⅛1 ¼1 ⅜1 ½2 ¼

315425315425495520645785

--

350415485510650800

7117697

176198198198198

400(16″)

125250150300400600900

1500

FFFF


514540514540537565575641

191232191232305305384384

406406406406406406406406

539.7517.5539.7571.5571.5603.2615.9704.8

1620162020202016

11 ¼

11 ¼1 ⅜1 ½1 ⅝2 ½

350435350435550585690855

--

340425540575695870

99227159227268288550750

800( 32″)

125150

FFRF

920940

356356

813813

950950

2828

1 ½1 ½

550550

--

533635

900( 36″)

125150300

FFRF

RF 98

104810481117

368387489

914914914

1085.81085.81168.4

323232

1 ½1 ½

2

580605835

---

6566851609

1000( 40″)

125150

FFRF

11621162

419419

10161016

11601160

2828

1 ½1 ½

645645

--

10651190

1050( 42″)

125150300

FFRFRF

121912191289

432432568

106710671067

1257.31257.31339.8

363636

1 ½1 ½

2

650650890

---

126013862630

1200( 48″)

125150300

FFRFRF

138413841366

524524629

121912191219

1422.41422.41543

444444

1 ½1 ½

2

750750-

---

205521802755

1350 (54″) 150 RF 1549 540 1372 1593.8 44 1 ¾ 815 - 2800

1500 (60″) 150 RF 1715 660 1524 1759 52 1 ¾ - - 3538

1800 (72″) 150 RF 2051 914 1829 2096 60 1 ¾ - - 6350

2250 (90″) 150 RF 2493 1289 2270 2550 68 1 ¼ - - -

450(18″)

125250150300400600900

1500

FFFF


549597549579594613638705

203264203264362362451468

457457457457457457457457

577.8628.6577.8628.6628.6654

685.8774.7

1624162424202016

1 ⅛1 ¼1 ⅛1 ¼1 ⅜1 ⅝1 ⅞2 ¾

370495370495635635800985

--

3904856256258001005

118301185301401401770980

125( 5″)

125250150300400600

FFFF

RF·R-41RF·R-41RF·R-41RF·R-41

197216197216213241

83838686

105105

141141141141141141

215.9234.9215.9234.9234.9266.7

888888

3/43/43/43/47/81

185220195215260280

--

195230260280

91410141923

B

ØC

ØA



In accordance with ANSI B 16 - 104Leakage Class

Designation

Ⅰ - - -No test required provided user andsupplier so agree

Ⅱ 0.5% of rated capacityAll or water at 50~125℉(10~52℃)

45~60psig or max.operating differentialwhichever is lower

Pressure applied to valve inlet, withoutlet open to atmosphere orconcerned to a low head lossmeasuring device, full normal closingthrust provided by actuator.

Ⅲ 0.1% of rated capacity As above As above As above

Ⅳ 0.01% of rated capacity As above As above As above

Ⅴ

Ⅵ

0.05ml per minute of waterinch of port diameter perpsi differential

Not to exceed amountsshown in following tablebased on port diameter

Water at 50~125℉(10~52℃)

Air or Nitrogen at50~125℉(10~52℃)

Max. service pressuredrop across valve plugnot to exceed ANSIbody rating(100psi pressure dropminimum)

50 psig or max. rateddifferential pressureacross valve plugwhichever is lower

Pressure applied to valve inlet after fillingentire body cavity and connectedpiping with water and storking valve plugclosed.Use net specified max. actuator thrust,but no more, even if available during testAllow time for leakage flow to be stablized.

Actuator should be adjusted tooperating conditions specified with fullnormal closing thrust applied to valveplug seat.Allow time for leakage flow to bestablized and use suitable measuingdevice.

Testing Procedures Required for Establishing Ration

Test PressureTest MediumTest Medium

In accordance with ANSI B 16 - 104, FCI 70-2 (Test Procedure Type B)

Size △P(bar)

Inch mm 10 16 20

2″3″4″5″6″8″

10″

5080

100125150200250

0.150.240.3

0.380.450.6

0.75

0.240.380.480.6

0.720.961.2

0.30.480.6

0.750.91.21.5

ANSI

MSS

API

ISO

DIN

BS

AWWA

JIS

EN

B 16.1B 16.5B 16.34

SP- 6SP- 25SP- 44SP- 55SP- 61SP- 67 narrow (C1-D1)SP- 68

598609

7005520852095211/1

5752 Tab. 5 (20 series)

3202 - K150049 - 2.250049 - 3.1B

5155 short

C504

B2002B2003

10204

Cast iron pipe flanges and flanged fittingsSteel pipeline flangesSteel valves

Standard finishes for pipe flangesStandard marking system for valvesSteel pipeline flangesQuality standard for steel castingsPressure testing of steel valvesButterfly valvesHigh pressure - offset seat butterfly valve

Valve inspections and testingButterfly valves Wafer and LUG type (face-to-face on valve)

Metallic flangesIndustrial valves - pressure testing of valvesGeneral purpose industrial valves - markingPart - turn valve actuator attachment - topflange dimensions

Face - to - face and centre - to - face dimensions

Face - to - face dimensionsCertificates on material tests (standard)Certificates on material tests (on request)

Butterfly valves for general purposes

Rubber seated butterfly valves

Face to face dimensionsvalve test

Types of inspection documents

Butterfly valve manufactured according to mostsevere quality control standards

Seat Leakage Allowance

Calculated Values of Seat Leakage (Class V)

The body test is performed at 1.5 times of the nominal pressure while the seat test at1.1 time of the nominal pressure, using for both emulsified water at roomtemperature. While testing, no leakage shall be noticed from the stems, as for theseat test. For the pneumatic test with closed disc, the butterfly is covered with waterand soap on that side where the visual control of the seal is performed, in order toshow up a possible leak. DK’s valves are tested 100% before deilvery

Inspection and testing according as ISO 5208,MSS SP61, AWWA C504, JIS B 2003 API 598 andBS 5155

Unit(cc/minute)

Size △P(bar)

Inch mm 10 16 20

12″14″16″18″20″22″24″

300350400450500550600

0.91.051.21.351.51.651.8

1.441.681.922.162.42.642.88

1.82.12.42.73.03.33.6

Unit(cc/minute)

Qa(allowable leckage) (cc/minute)= 3×10-4, nominal size(mm)×△P(bar) or 0.0075nominal size(inch)×△P(bar)

△P = max. differential pressure



In accordance with ANSI B 16 - 104Leakage Class

Designation

Ⅰ - - -No test required provided user andsupplier so agree

Ⅱ 0.5% of rated capacityAll or water at 50~125℉(10~52℃)

45~60psig or max.operating differentialwhichever is lower

Pressure applied to valve inlet, withoutlet open to atmosphere orconcerned to a low head lossmeasuring device, full normal closingthrust provided by actuator.

Ⅲ 0.1% of rated capacity As above As above As above

Ⅳ 0.01% of rated capacity As above As above As above

Ⅴ

Ⅵ

0.05ml per minute of waterinch of port diameter perpsi differential

Not to exceed amountsshown in following tablebased on port diameter

Water at 50~125℉(10~52℃)

Air or Nitrogen at50~125℉(10~52℃)

Max. service pressuredrop across valve plugnot to exceed ANSIbody rating(100psi pressure dropminimum)

50 psig or max. rateddifferential pressureacross valve plugwhichever is lower

Pressure applied to valve inlet after fillingentire body cavity and connectedpiping with water and storking valve plugclosed.Use net specified max. actuator thrust,but no more, even if available during testAllow time for leakage flow to be stablized.

Actuator should be adjusted tooperating conditions specified with fullnormal closing thrust applied to valveplug seat.Allow time for leakage flow to bestablized and use suitable measuingdevice.

Testing Procedures Required for Establishing Ration

Test PressureTest MediumTest Medium

In accordance with ANSI B 16 - 104, FCI 70-2 (Test Procedure Type B)

Size △P(bar)

Inch mm 10 16 20

2″3″4″5″6″8″

10″

5080

100125150200250

0.150.240.3

0.380.450.6

0.75

0.240.380.480.6

0.720.961.2

0.30.480.6

0.750.91.21.5

ANSI

MSS

API

ISO

DIN

BS

AWWA

JIS

EN

B 16.1B 16.5B 16.34

SP- 6SP- 25SP- 44SP- 55SP- 61SP- 67 narrow (C1-D1)SP- 68

598609

7005520852095211/1

5752 Tab. 5 (20 series)

3202 - K150049 - 2.250049 - 3.1B

5155 short

C504

B2002B2003

10204

Cast iron pipe flanges and flanged fittingsSteel pipeline flangesSteel valves

Standard finishes for pipe flangesStandard marking system for valvesSteel pipeline flangesQuality standard for steel castingsPressure testing of steel valvesButterfly valvesHigh pressure - offset seat butterfly valve

Valve inspections and testingButterfly valves Wafer and LUG type (face-to-face on valve)

Metallic flangesIndustrial valves - pressure testing of valvesGeneral purpose industrial valves - markingPart - turn valve actuator attachment - topflange dimensions

Face - to - face and centre - to - face dimensions

Face - to - face dimensionsCertificates on material tests (standard)Certificates on material tests (on request)

Butterfly valves for general purposes

Rubber seated butterfly valves

Face to face dimensionsvalve test

Types of inspection documents

Butterfly valve manufactured according to mostsevere quality control standards

Seat Leakage Allowance

Calculated Values of Seat Leakage (Class V)

The body test is performed at 1.5 times of the nominal pressure while the seat test at1.1 time of the nominal pressure, using for both emulsified water at roomtemperature. While testing, no leakage shall be noticed from the stems, as for theseat test. For the pneumatic test with closed disc, the butterfly is covered with waterand soap on that side where the visual control of the seal is performed, in order toshow up a possible leak. DK’s valves are tested 100% before deilvery

Inspection and testing according as ISO 5208,MSS SP61, AWWA C504, JIS B 2003 API 598 andBS 5155

Unit(cc/minute)

Size △P(bar)

Inch mm 10 16 20

12″14″16″18″20″22″24″

300350400450500550600

0.91.051.21.351.51.651.8

1.441.681.922.162.4

2.642.88

1.82.12.42.73.03.33.6

Unit(cc/minute)

Qa(allowable leckage) (cc/minute)= 3×10-4, nominal size(mm)×△P(bar) or 0.0075nominal size(inch)×△P(bar)

△P = max. differential pressure


Torques For High Performance(Double Eceentric)

Triple Offset Torque

Torque Conversion Ratio Torque To Be Considered

DK Co., Ltd.24

DK

FLANGE STANDARD COMPARISION

Flange drillingsSize JIS 5K

Inch

1½″

2″

2½″

3″

4″

5″

6″

8″

10″

12″

14″

16″

18″

20″

24″

28″

30″

32″

36″

40″

40

50

65

80

100

125

150

200

250

300

350

400

450

500

600

700

750

800

900

1000

95

105

130

145

165

200

230

280

345

390

435

495

555

605

715

820

880

930

1030

1130

4

4

4

4

8

8

8

8

12

12

12

16

16

20

20

24

24

24

24

28

15

15

15

19

19

19

19

23

23

23

25

25

25

25

27

27

33

33

33

33

105

120

140

150

175

210

240

290

355

400

445

510

565

620

730

840

900

950

1050

1160

4

4

4

8

8

8

8

12

12

16

16

16

20

20

24

24

24

28

28

28

19

19

19

19

19

23

23

23

25

25

25

27

27

27

33

33

33

33

33

39

105

120

140

160

185

225

260

305

380

430

480

540

605

660

770

875

935

990

1090

1210

4

8

8

8

8

8

12

12

12

16

16

16

20

20

24

24

24

24

28

28

19

19

19

23

23

25

25

25

27

27

33

33

33

33

39

42

42

48

48

56

110

125

145

160

180

210

240

295

350

400

460

515

565

620

725

840

-

950

1050

1160

4

4

4

8

8

8

8

8

12

12

16

16

20

20

20

24

-

24

28

28

18

18

18

18

18

18

18

23

23

23

23

27

27

27

30

30

30

33

33

36

110

125

145

160

180

210

240

295

355

410

470

525

585

650

770

840

-

950

1050

1170

4

4

4

8

8

8

8

12

12

12

16

16

20

20

20

24

-

24

28

28

18

18

18

18

18

18

23

23

27

27

27

30

31

33

36

36

-

39

39

42

98

121

140

152

191

216

241

299

362

432

-

-

-

-

-

-

-

-

-

-

4

4

4

4

8

8

8

8

12

12

-

-

-

-

-

-

-

-

-

-

16

20

20

20

20

23

23

23

26

26

-

-

-

-

-

-

-

-

-

-

98.5

120.5

139.5

152.5

190.5

216

241.5

298.5

362

432

476

539.5

578

635

749.5

863.6

914.4

978

1086

1200

4

4

4

4

8

8

8

8

12

12

12

16

16

20

20

28

28

28

32

36

16

19

19

19

19

22

22

22

25

25

29

29

32

32

35

35

35

41

41

41

Unit(mm)

mm ØC F ØEJIS 10K

ØC F ØEJIS 16K

ØC F ØEBS 4504 PN 10


ØC F ØEANSI CLASS 125LB ANSI 150LBØC ØCF FØE ØE

DK Co., Ltd. 25

Torques for resilient seated butterfly valveThe factors affect the torque required to operate the valves·Valve diameter ·Shaft diameter ·Bearing friction coefficient ·Type of seat material

Size Inchmm

1½″40

2″50

2 ½″65

3″80

4″100

5″125

6″150

8″200

10″250

12″300

14″350

16″400

18″450

20″500

24″600

28″700

30″750

32″800

36″900

40″1000

Shut offPressure

in Bar

3.5Bar6Bar10Bar16Bar

10101314

12222525

17232829

25353137

41405259

58667489

8791109126

156170180260

243276320390

342389484560

4885446801520

6677628802030

887102312612493

1146132216303076

2386278132564150

2710330040505650

3000394045906040

3540434049906640

4640536069409490

63007800994013240

Unit(N.m)

Size Inchmm

2″50

2 ½″65

Class 150 DifferentialPressure (Bar)

10 Bar16 Bar

2.33.0

2.53.4

2.73.6

4.25.8

9.011.3

11.214.0

21.324.6

34.041.2

49.260.3

86.4105.0

119.2144.0

146.3183.0

190.1235.2

302.9374.4

350.1432.2

715.1917.7

917.01214.5

10701459.0


10 Bar16 Bar20 Bar25 Bar

2.33.23.63.8

3.03.84.05.2

3.84.34.96.4

5.47.37.910.8

12.114.617.722.4

14.018.019.427.6

28.026.036.753.7

43.051.658.886.8

65.278.389.0130.1

95.8121.2138.3210.3

136.8176.2228.3339.6

173.0232.3270.4408.1

238.3319.7380.0580.3

372.3491.0574.6879.3

----

----

----

----

Unit(kgf.m)

3″80

4″100

5″125

6″150

8″200

10″250

12″300

14″350

16″400

18″450

20″500

24″600

28″700

32″800

36″900

40″1000

3059118233

The torque is actuator sizing torque at pressure differential. Minimum 20% additional safety factor to be considered and hydrodynamic torque may be considered at given flow condition

Torque plays an important part in the cost, operation and lifespan of butterfly valves. The following explains why.Bearing friction, seal or seating friction, and fluid dynamic effectson the disc are primary factors in determining requirements for abutterfly valve. These are described below.Any unbalanced pressure across the butterfly valve disc placesa direct load on the shaft bearings. The projected area of thedisc decreases with valve opening, this bearing friction variesfrom maxium as the disc rotates from the closed to the fully openposition.Seating friction is maximum during the first few degrees ofopening (or the last few degrees of closing) and is the result ofthe valve disc edge action against the seat.The seating torque acts to oppose the rotation of the disc.The contact of the seat around the full periphery of the disccreates the bubble tight seal.From the dynamic standpoint, a butterfly valve disc is torquebalanced only when totally closed for ful ly open. In allintermediate positions, a fluid dynamic torque is presentbecause the fluid velocity over the disc surface is always higheron the trailing edge of the disc than on the leading edqe. Thistorque acts in a valve “disc - closing” direction, tending to reachits highest point at about 70 degrees open.

DifferentialPressure

(Bar)


Unit(N.m)

3″80

Inchmm

53104206408

4″100

73144286566

5″125

118234463916

6″150

2044037991581

8″200

31963312522480

10″250

549108721524260

12″300

661131025935134

14″350

927183636357198

16″400

154030506039

11958

18″450

19493859764015128

20″500

29215784

1145222675

24″600

Size

110009.8070.1131.356

0.0011

0.00981.13 × 10 - 4

0.0014

0.102101.972

10.011550.138

8.85885186.8

112

0.738737.67.2330.083

1

Operating Characteristics For Sizing

5. 10. 16JIS 20. 30. 40. 63K

ANSI 125BRONZE FLANGES : ANSI 150 &300

g

d

E

t

f

CD

ANSI 150

g

d

E

t

1.6

CD

ANSI 250, 300

g

d

E

t

1.6

CD

ANSI 400, 600, 900

g

d

E

t

4

CD

d

E

t

CD

ØC : Bolt Circle Diameter F : Number of holes ØE : Diameter of holes

FactorsKgf.m Ibf.in Ibf.ftKN.mN.m


Torques For High Performance(Double Eceentric)

Triple Offset Torque

Torque Conversion Ratio Torque To Be Considered

DK Co., Ltd.24

DK

FLANGE STANDARD COMPARISION

Flange drillingsSize JIS 5K

Inch

1½″

2″

2½″

3″

4″

5″

6″

8″

10″

12″

14″

16″

18″

20″

24″

28″

30″

32″

36″

40″

40

50

65

80

100

125

150

200

250

300

350

400

450

500

600

700

750

800

900

1000

95

105

130

145

165

200

230

280

345

390

435

495

555

605

715

820

880

930

1030

1130

4

4

4

4

8

8

8

8

12

12

12

16

16

20

20

24

24

24

24

28

15

15

15

19

19

19

19

23

23

23

25

25

25

25

27

27

33

33

33

33

105

120

140

150

175

210

240

290

355

400

445

510

565

620

730

840

900

950

1050

1160

4

4

4

8

8

8

8

12

12

16

16

16

20

20

24

24

24

28

28

28

19

19

19

19

19

23

23

23

25

25

25

27

27

27

33

33

33

33

33

39

105

120

140

160

185

225

260

305

380

430

480

540

605

660

770

875

935

990

1090

1210

4

8

8

8

8

8

12

12

12

16

16

16

20

20

24

24

24

24

28

28

19

19

19

23

23

25

25

25

27

27

33

33

33

33

39

42

42

48

48

56

110

125

145

160

180

210

240

295

350

400

460

515

565

620

725

840

-

950

1050

1160

4

4

4

8

8

8

8

8

12

12

16

16

20

20

20

24

-

24

28

28

18

18

18

18

18

18

18

23

23

23

23

27

27

27

30

30

30

33

33

36

110

125

145

160

180

210

240

295

355

410

470

525

585

650

770

840

-

950

1050

1170

4

4

4

8

8

8

8

12

12

12

16

16

20

20

20

24

-

24

28

28

18

18

18

18

18

18

23

23

27

27

27

30

31

33

36

36

-

39

39

42

98

121

140

152

191

216

241

299

362

432

-

-

-

-

-

-

-

-

-

-

4

4

4

4

8

8

8

8

12

12

-

-

-

-

-

-

-

-

-

-

16

20

20

20

20

23

23

23

26

26

-

-

-

-

-

-

-

-

-

-

98.5

120.5

139.5

152.5

190.5

216

241.5

298.5

362

432

476

539.5

578

635

749.5

863.6

914.4

978

1086

1200

4

4

4

4

8

8

8

8

12

12

12

16

16

20

20

28

28

28

32

36

16

19

19

19

19

22

22

22

25

25

29

29

32

32

35

35

35

41

41

41

Unit(mm)

mm ØC F ØEJIS 10K

ØC F ØEJIS 16K



ØC F ØEANSI CLASS 125LB ANSI 150LBØC ØCF FØE ØE

DK Co., Ltd. 25

Torques for resilient seated butterfly valveThe factors affect the torque required to operate the valves·Valve diameter ·Shaft diameter ·Bearing friction coefficient ·Type of seat material

Size Inchmm

1½″40

2″50

2 ½″65

3″80

4″100

5″125

6″150

8″200

10″250

12″300

14″350

16″400

18″450

20″500

24″600

28″700

30″750

32″800

36″900

40″1000

Shut offPressure

in Bar

3.5Bar6Bar10Bar16Bar

10101314

12222525

17232829

25353137

41405259

58667489

8791109126

156170180260

243276320390

342389484560

4885446801520

6677628802030

887102312612493

1146132216303076

2386278132564150

2710330040505650

3000394045906040

3540434049906640

4640536069409490

63007800994013240

Unit(N.m)

Size Inchmm

2″50

2 ½″65


10 Bar16 Bar

2.33.0

2.53.4

2.73.6

4.25.8

9.011.3

11.214.0

21.324.6

34.041.2

49.260.3

86.4105.0

119.2144.0

146.3183.0

190.1235.2

302.9374.4

350.1432.2

715.1917.7

917.01214.5

10701459.0



2.33.23.63.8

3.03.84.05.2

3.84.34.96.4

5.47.37.910.8

12.114.617.722.4

14.018.019.427.6

28.026.036.753.7

43.051.658.886.8

65.278.389.0130.1

95.8121.2138.3210.3

136.8176.2228.3339.6

173.0232.3270.4408.1

238.3319.7380.0580.3

372.3491.0574.6879.3

----

----

----

----

Unit(kgf.m)

3″80

4″100

5″125

6″150

8″200

10″250

12″300

14″350

16″400

18″450

20″500

24″600

28″700

32″800

36″900

40″1000

3059118233

The torque is actuator sizing torque at pressure differential. Minimum 20% additional safety factor to be considered and hydrodynamic torque may be considered at given flow condition

Torque plays an important part in the cost, operation and lifespan of butterfly valves. The following explains why.Bearing friction, seal or seating friction, and fluid dynamic effectson the disc are primary factors in determining requirements for abutterfly valve. These are described below.Any unbalanced pressure across the butterfly valve disc placesa direct load on the shaft bearings. The projected area of thedisc decreases with valve opening, this bearing friction variesfrom maxium as the disc rotates from the closed to the fully openposition.Seating friction is maximum during the first few degrees ofopening (or the last few degrees of closing) and is the result ofthe valve disc edge action against the seat.The seating torque acts to oppose the rotation of the disc.The contact of the seat around the full periphery of the disccreates the bubble tight seal.From the dynamic standpoint, a butterfly valve disc is torquebalanced only when totally closed for ful ly open. In allintermediate positions, a fluid dynamic torque is presentbecause the fluid velocity over the disc surface is always higheron the trailing edge of the disc than on the leading edqe. Thistorque acts in a valve “disc - closing” direction, tending to reachits highest point at about 70 degrees open.

DifferentialPressure

(Bar)


Unit(N.m)

3″80

Inchmm

53104206408

4″100

73144286566

5″125

118234463916

6″150

2044037991581

8″200

31963312522480

10″250

549108721524260

12″300

661131025935134

14″350

927183636357198

16″400

15403050603911958

18″450

19493859764015128

20″500

29215784

1145222675

24″600

Size

110009.8070.1131.356

0.0011

0.00981.13 × 10 - 4

0.0014

0.102101.972

10.011550.138

8.85885186.8

112

0.738737.67.2330.083

1

Operating Characteristics For Sizing

5. 10. 16JIS 20. 30. 40. 63K

ANSI 125BRONZE FLANGES : ANSI 150 &300

g

d

E

t

f

CD

ANSI 150

g

d

E

t

1.6

CD

ANSI 250, 300

g

d

E

t

1.6

CD

ANSI 400, 600, 900

g

d

E

t

4

CD

d

E

t

CD

ØC : Bolt Circle Diameter F : Number of holes ØE : Diameter of holes

FactorsKgf.m Ibf.in Ibf.ftKN.mN.m


DK Co., Ltd.26 DK Co., Ltd. 27

Chemiacl agents

Unit(N.m)

DINSPEC

ASME(ASTM) KS JIS

GRADE SYMBOL SYMBOL

E-ExcellentG-GoodF-FairU-Unsatisfactory

Iron

316S

SAL

Bro

nze

Mon

el

EPDM

NBR

Vito

nN

atur

al R

ubbe

r

Iron

316S

SAL

Bro

nze

Mon

el

EPDM

NBR

Vito

nN

atur

al R

ubbe

r

Metal Elastomer Metal Elastomer

WeakAlkali

◎◎◎◎◎◎

◎

◎

◎

◎

×××

×◎

△×××△

◎

×××◎

◎◎◎◎

◎

◎

◎◎◎

◎◎

◎◎◎

◎◎◎

70℃70℃65℃80℃130℃150℃

NBRCRNR

EPDM(EPT)SI

FPM

Buna-NNeoprene

Natural RubberEPT

SiliconViton

StrongAlkali

WeakAcid

StrongAcidSolventOil

ResistanceWater

ResistanceSun light

ResistanceAgingAbrasionMaxTemp

ASTMCode

CommomName

Feature

of

Rubber

Material Seletion Guide Material Comparison

A-47

A-48

A-53

A-105

A-106

A-126

A-182

A-193

A-194

A-216

A-217

A-234

A-240

A-278

A-283

A-312

A-320

A-351

A-352

A-356

A-395

A-536

B-16

B-61

B-62

B-124

B-148

B-584

Gr. AGr. BGr. C

Cl. BCl. C

F 11F 22F 304F 304LF 316F 316L

Gr. B7

Gr. 2H

Gt. WCA

Gr. WCB

Gr. WC 1Gr. WC 6Gr. WC 9

Gr. WPA (W)Gr. WPB (W)Gr. WPC (W)

Type 304LType 304LType 316LType 316LType 321LType 410LType 430L

CI. NO. 30CI. NO. 35

Gr. D

Gr. TP 304LGr. TP 304LGr. TP 316LGr. TP 316L

Gr. B 8MGr. B 8M

Gr. CF 3MGr. CF 3MGr. CF 8MGr. CF 8MGr. CN 7M

Gr. LCBGr. LCCGr. LC1Gr. LC2Gr. LC3

Gr. 1

Gr. 2Gr. 6

Gr. 60 - 40 -18Gr. 65 - 45 -12

C36000

905 922

C83600

C37700

C95200C95400C95500C95800

C90500C83600

SPPH 38SPPH 42SPPH 49

GC 20GC 25

SFHV 23BLSFHV 24BLSFSF 304LSFSF 304LSFSF 316LSFSF 316L

SNB 7

SM 45C

SC 42SCPH 1SC 49SCPH 2SCPH 2

SCPH 11SCPH 21SCPH 22

STS 304LSTS 304LSTS 316LSTS 316LSTS 321LSTS 410LSTS 430L

GC 20GC 25

SB 41

STS 304TPLSTS 304LTPSTS 316TPLSTS 316LTP

STS 304BSTS 316B

SSC 19ASSC 16ASSC 13ASSC 14ASSC 23A

SCPL 11SCPL 11SCPL 11SCPL 21SCPL 31

SCPH 21

SCPH 11SCPH 21

DC 40DC 50

GCD 42GCD 50

C3602C3604

BrC 1, 2, 3, 4, 5BrC 1, 2, 3, 4, 4

BrC 1, 2, 3, 4, 5

FBsBE1FBsBE2

AlBrC1AlBrC2AlBrC2AlBrC3

BrC3BrC6

STS 38STS 42STS 49

FC 20FC 25

SFHV 23BLSFHV 24BLSFHV 304LSFHV 304LSFHV 316LSFHV 316L

SNB 7

S 45C

SC 42SCPH 1SC 42SCPH 2SCPH 2

SCPH 11SCPH 21SCPH 22

SUS 304LSUS 304LSUS 316LSUS 316LSUS 321LSUS 410LSUS 430L

FC 20FC 25

SS 41

SUS 304TPLSUS 304LTPSUS 316TPLSUS 316LTP

SUS 304BSUS 316B

SCS 19ASCS 16ASCS 13ASCS 14ASCS 23A

SCPL 11SCPL 11SCPL 11SCPL 21SCPL 31

SCPH 21

SCPH 11SCPH 21

FCD 40FCD 45

FCD 40FCD 50

C3602C3604

BC 1, 2, 3, 4, 5, 6, 7BC 1, 2, 3, 4, 5, 6, 7

BC 1, 2, 3, 4, 5, 6, 7

C3771B

ALBC1ALBC2ALBC2ALBC3

BC3BC6

DIN 1629 St 35.4DIN 1629 St 45.4DIN 1629 St 35.4

DIN 1691 GG - 20DIN 1691 GG - 25

SEW 610 - 13CrMo 44SEW 610 - 10CrMo 9 10DIN 17440 - 5CrNi 18 9DIN 17440 - 2CrNi 18 9DIN 17440 - 2CrNiMo 18 10DIN 17440 - 2CrNiMo 18 10

DIN 17240 - 24 CrMo5

DIN 17100 St 50-2

DIN 1681 GS - 38DIN 1681 GS - 38DIN 1681 GS - 52DIN 1681 GS - 52DIN 17245 GS - C25

DIN 17245 GS - 22Mo4DIN 17245 GS - 17CrMo55

DIN St 35.8 Ws No. 305DIN St 45.8 Ws No. 405

DIN 17440 5CrNi 18 9, 18 10DIN 17440 2CrNi 18 9DIN 17440 5CrNiMo 18 10DIN 17440 2CrNiMo 18 12DIN 17440 10CrNiTi 18 9DIN 17440 10Cr 13DIN 17440 8Cr 17

DIN 1691 GC - 20DIN 1691 GC - 25

DIN 17100 USt 42-1

DIN 2462 5CrNi 18 9

DIN 2462 5CrNi 18 12DIN 2462 2CrNiMo 18 10

SEW 680 5CrNi 18 10 A2DIN 267 A4

DIN 17445G 6CrNi 18 9DIN 17445G 7CrNiMo 18 10

SEW 685GS - CK24SEW 685GS - CK24SEW 685GS - 26CrMo4

SEW 685GS - 10Ni14

DIN 1681 GS - 52DIN 17245 GS - C25DIN 17245 GS - 22Mo4DIN 17245 GS - 17CrMo4

DIN 1693 GGG - 40DIN 1693 GGG - 50

DIN 1693 GGG - 40DIN 1693 GGG - 50

DIN 17660 CuEn36Pb1.5DIN 17660 CuEn36Pb2

DIN 1787 - CuZn40Pb2DIN 17672 - CuZn40Pb2

DIN 1714 - CuAl10FeDIN 1714 - CuAl9NiG - CuAl10NiDIN 1714 - CuAl10Ni

DIN 1705 - CuSn10ZnDIN 1705 - CuZn5ZnPb

NO. 32510NO. 35018

CI. NO. 35A~CCI. NO. 40A~C

Type S. Gr. AType S. Gr. B

BMC 35BMC 37

FCMB 35FCMB 37

DIN 1692 GTS - 10DIN 1692 GTS - 45

GC 20GC 25

FC 20FC 25

DIN 1691 GG - 20DIN 1691 GG - 25

SPPS 38 - SSPPS 42 - S

STPG 38 - SSTPG 42 - S

DIN 1629 St 35, 37DIN 1629 St 42, 45

SF 45CSM 25C

SF 45AS 25C

AcetaidihydeAcetic acid 50% 50℃Acetic acid-AnhydirdeAcetoneAcetylene

AcrylonitrileAir(Duy)Alcohol-AmylAlcohol-ButylAlcohol-Ethyl

Alcohol-MethylAlum-AmmoniumAlum-ChromeAlum-PotassiumAlumina

Aluminum ChlorideAluminum FluorideAluminum HydroxideAluminum SulphateAmines

Ammonia, AnhydrousAmmonia gas 150°FAmmonia solutionsAmmonia Chloride 50% 180°FAmmonia Hydroxide

Ammonia Nitrate 5% 60°FAmmonia PhosphateAmmonia SulphateAmyl AcetateAmylchloride

Anillne 90% 70°FAsphaltBarium Carbonate 60°FBarium chlorideBarium Hydroxide

Barium SulphateBarium SulphateBeer (beverage)Beer sugar solutionBenzaldehyde

Benzene(benzol) 70°FBenzoic Acid 5%BoraxBoric acid 5% 200°FBrine

Bromine-GasBromine-WaterButadieneButane-ButyleaeButyl Acetate

Butyric Acid 5%Calcium carbonate 60°FCalcium chlorate 20%Calcium chlorideCalcium chloride solution

Calcium Hydroxide 50% 175°FCalcium HypochloriteCalcium SulphateCarbon DioxideCarbon Tetrachloride

Carbonic AcidChlorine gas-dry 70°FChlorobenzene 90%Chromin Acid 5% 70°FCitric acid 5% 150°F

Coffee(food)Copper SulphateCyclohexaneDeztrose(food)Diacetone

DichloroethaneDiesel FuelsDiethyl AmineDowthermsDrilling Mud

EthersEthyl AcetateEthyl Dhloride 5%Ethyl GlycolEthylene Oxide

FatsFerric ChlorideFerric NitrateFerric Sulphate 5%Ferric Sulphate

FluorineFluosillicic AcidFormaldehyde 70°FFormic acid 5% 150°FFreon

Fruit Juices(food)Fuel OilGallic Acid 5% 200°FGasolineGlucose

Glycerine/GlycerolHeptaneHexaneHydrobromic Acid 200°FHydrochloric Acid 15% 60°F

U E U FU E U FU E U FG E E EG E E -

G E E EE E E EF E E EF E E EU E E E

U E E EU G - -U G - -U G - -G G G G

U U U EU G - GU G - -U G U -U E - -

F E U -U E U -F E U GU G U GU E U F

F E U GU G U GU G U GF E E GF E E -

F E F -E E E EU - G GU - - GF E U -

U E G GF E U -U E U -U E U -F E E -

F E E GU E - GU E U EU E F GU - - G

U U U FU U U FF E E -G E E EG E E -

U E - -F - - E- E - GF G F GF E F -

F E U E- G - -F E E GF E E -U G F G

U G - GU G F FF E E EU E U -U E F G

U E U -F E U UF E E -U E - -U - E -

U F - -F E G EF E E -G E E -G E - E

U E E GF E - EF E E GG E E EG E - -

E E E -U - U EU E - EU G U EF E U -

U U U GU G E -U E E GU E E GF E E E

U E U -F E E GU E - -F E G GU E G G

F E G GF E E -F E E -U U U UU U U U

G U - FG U U FU U U FG U U EU F U -

U U U UE E - -- F G -- F - -E G G G

E G U G- G G F- G G F- - - -E E G G

E E E E- G G -- G G -- E - -- F - -

E G U -G - - -E G U G- - - -E U G U

- E - -E E - GE E E -- U F UU U U U

G U G U- U E UE E - -E E E E- E - U

E E E E- E - -E - - -- E - -G U U U

U U G U- F - -- G - GE E - -E E - -

U U G UU U G U- G G -U G G UE U U U

U U U UE E E E- - - -E E E GE E E G

E E E E- F - -E E E EG G E GU U E U

- E - -U U E UU U G UU U E UE G E U

E U E EE E E GU E E U- E - -E U U U

U U G UU E E -F U U FU U E UU E - U

U U - UG U U UE E E FE E E GU U U U

U E - -- F - -G F - -- E E -G E G G

- G - -- E - -E G E -- U U UU G G U

G G - -U F E U- G G -U E E U- E E -

- E E -U E E UU G E UU U U UE U E -

Hydrochloric Acid 37% 60°FHydrochloric Acid 20%Hydrochloric Acid 20-60%HydrogenHydrogen Peroxide 90%

Hydrogen Sulfidelodine SolutionIso-octaneIsopropyl AlcoholSopropyl Ether

KeroseneLactic Acid 5%Lubricating OilMagnesium Chloride 4%Magnesium Hydroxide

Magnesium SulphateMercuric Chioride 3%MercuriyMethaneMethyl Acetate

Methyl AcetoneMethyl ChlorideMethyl Etherl KotoneMilk(food)Mineral Oil

Molasses(food)NapthaleneNatural gasNickel ChlorideNitric acid less 40% 70°F

Nitric acid more 40% 70°FnitrobenzeneOleumOlive OilOxalic Acid

Oxygen 200°FOxygen 300°FPalmitic acidPerchloroethlenePetroleum

PhenolPhosphoric Acid 5%Phosphoric Acid 85% 70°FPicric Acid 80%Potassium Cyanide

Potassium Hydroxide 5%Potassium NitratePotassium PhosphatePotassium SulfidePotassium Sulfite

PropaneResinsSea Water 70°FSoap Solution(Slearate)Sodium Acetate 5%

Sodium BisulfateSodium CarbonateSodium Chloride 30% 180°FSodium CyanideSodium Fluoride 5% 60°F

Sodium Hydroxide 50% 122°FSodium Hydroxide 50% 176°FSodium Hypochlorite 50% 60°FSodium NitrateSodium Perborate

Sodium PeroxideSodium Phosphate 5%Sodium SillicateSodium Sulfitde 70%Sodium Sulfite

Sodium Sulphate 80% 60°FSteam 300°FSteraric Acid 90% 200°FSulphur (Molten)Sulphur Dioxide

Sulphur TrioxideSulfuric Acid 10%Sulfuric Acid 50%Sulfuric Acid 93% 70°FSulphurous Acid 80% 100°F

Tannic Acid 10% 150°FTarTartaric Acid 150°FThinnerToluol and Toluene

Tributyl PhosphateTrichloroethyleneTricresyl PhosphateTriethanolamineTurpermtine

Vinegar 70°FWater-DemineralizedWater-distilledWater FreshWater Minera

Water-SewageWhiskey and WinesXylene, XylolZinc Chloride 5% 160°FZinc Sulphate 25% 180°F

U U U UU U U FU U U UF E F -U G U E

F G F -U U U EF E E EF E E EF E E E

E E E EU G U GE E E EF G F GF E G -

F E E EU F U GE E U EU E E -F E E -

F E E -G E E -E E E -U E - -F F - -

U E U -F E E -G E E -U F - -U - U U

U U U UU E - -U F - -- E - -U G U -

E E E EE E E EU E G -F E - -U G F G

U E - EU G U GU G U -U E - FF E U -

F E U EF E F GU G - -U E - -U E - -

F E E -U E E -U G G EU E E GU E E G

U E - -U E G EU E E EU E U -U - F G

U G U GU G U GU G U EU E G GU E - -

U E U -U E - GU E G GU E U -U - U G

U F G GU E G EU E F FU G U UU E F E

U E - -U G U UU U U UU U U UU U U U

U E G -F E E EU E G -U E E EU E E -

U E - -- E E -U U U -U - - GU E G -

U E - -U E E EU E U -F E E EF E E E

U E E EU E G EF E E -U F U GU E E G

U U E U- U E U- U E UE E E E- U G U

E U U U- U F UU E E -- G E -U E E U

U E E U- F - -U E E UE E E EE G E G

E E E GE E - -E E E EU E E UF U U U

G U U UU U E UU U U UE E E EU E E U

E - - -U U G UU E E U- E - -U U E U

U U F UU U G UU U E UG E E UG U G U

E G E FU U G U- E - -U F E UU E E U

U U E UF F E FF F - FU - - -- E E -

- E E -E E E E- E E -- E - -G F - -

U E E -- - G FE G E -E E E -E G U -

- E E -E E E EE E E E- E E -- - E -

E U U GG U U UG U E UE G - G- G E -

E G E GE E E EE E E E- - - -G E E -

E E E GE U U U- G - -E - E -G U E U

- U E UE U E FF U E UU U E UU U E U

- U E FU U G U- E - GU U U UU U G U

U U F FU U E UG U E UE G U UU U E U

G E E -E G E GE G - -E G - EE G - -

E G - -E E - -U U E UE E E E- E - -

◎Excellent Good △Fair ×Poor (The table shows only relatively comparison befween rubbers)


Cert No. 0062 KAB-QC-30 ISO 9001Cert No. QMS-0549

KSABUTTERFLY VALVES

CO., LTD.HEAD OFFICE #75-8, MORA-DONG, SASANG-GU, BUSAN, KOREA TEL +82-51-305-3770 FAX +82-51-305-3737

INTERNET ADDRESS http://www.dkvalve.com

E-MAIL ADDRESS [email protected] | [email protected]


ksa fax tel butterfly valves - jytt-intl.comcert no. 0062 kab-qc-30 iso 9001 cert no. qms-0549 ksa...

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