Gas Pressure Regulator Series 204

Serving the Gas industryworldwide

Product information

2

GAS PRESSURE REGULATOR SERiES 204

GAS PRESSURE REGULATOR SERiES 204

3

Introduction, Application, Features, Technical Data

Application

• Designed specifically for safe accurate first stage reduction on high pressure gas systems. Extensively used for gas services to domestic, industrial and farm taps where an accurate, safe and dependable pressure controlled supply is required.

introduction

Size Range1⁄ 2”, 3⁄4” and 1” Screwed to BS.21 Rc.

installation

The regulator may be mounted in any orientation to suit site conditions, moisture or debris must not ingress the vent hole.

It is important when installing equipment that pipeline stresses are kept to a minimum and no undue external forces are placed on the connections.

installation

• Regulator can be fitted with the Series 309 or 315 Overpressure (OPCO) or Under/Over pressure (UPCO/OPCO) Safety Cut-Off valve. These devices protect the downstream in the event that a dangerous gas pressure condition develops. All safety cut-off valves require External Control Line connection.

• Trip indicator to show Open/Closed condition.

• Remote Open/Closed position sensor.

Features

• Diaphragm casing can be rotated through 360° relative to regulator body and can be positioned at any angle to assist servicing and installation in confined spaces.

• Completely independent operation of regulator and safety cut-off valve.• Both regulator casing/valve head and safety cut-off valve can be removed from the body as cartridges, ensuring

straightforward maintenance without removing the body from the pipeline.• Wide operational pressure range• Rapid response to load changes.• Wide range of orifice sizes - Interchangeable in situ.

SERViCE CONDiTiONS

Maximum Inlet Pressure (dependent upon orifice size and safety cut-off valve fitted)

Regulator only

Regulator & Series 309 OPCO or UPCO/OPCO

Regulator & Series 315 OPCO or UPCO/OPCO

Outlet Pressure Range

Temperature Range

Up to 69 barg

Up to 10 barg

Up to 69 barg

0.21 to 13.8 barg

-20°C to +60°C

• The Series 204 is a high pressure Externally Impulsed (ECL) direct acting, diaphragm actuated, lever operated, spring loaded open regulator for use on gas pressure reduction systems. The regulator can also be fitted with an independently operated Safety Cut-Off Valve for Over and Under/Over pressure protection.

• Control of varying inlet pressure and capacity applications is ensured by utilising a range of interchangeable orifices of varying size.

• Use with confidence on natural and manufactured gases of non-aggressive nature, including Nitrogen, Carbon Dioxide, Propane and Butane.

4

GAS PRESSURE REGULATOR SERiES 204

ORiFiCE SELECTiON

Maximum inlet PressureOrifice Size

Regulator Only

with S.309 Safety

Cut-Off Valve

with S.315 Safety

Cut-Off Valve

Spring Selection, Materials of Construction

SPRiNG SELECTiON: SERiES 204 REGULATOR Spring Outlet Pressure Range

Number Colour bar psi

261 Yellow 0.2 - 0.82 3 - 12

262 Aluminium 0.69 - 1.72 10 - 25

263 White 1.38 - 4.13 20 - 60

264 Tan 3.45 - 8.6 50 - 125

265 Grey 6.9 - 13.8 100 - 200

266 Dark Green 0.69 - 6.9 10 - 100

SPRiNG SELECTiON: S.309 SAFETY CUT-OFF VALVE Model Type Spring Cut-Off Range Number Colour bar psi 1132 White/Blue 0.5 - 0.8 7.2 - 11.6 1133 White/Red 0.7 - 1.1 10.1 - 16 309-MP2 OPCO 1134 White Grey 1.0 - 1.8 4.5 - 26.1 1135 White/Brown 1.5 - 2.9 21.7 - 42 UPCO 1104 Purple 0.05 - 0.15 0.72 - 2.16 309-MP4 OPCO 1192 White/Purple 2 - 4 29 - 58 UPCO 1104 Purple 0.05 - 0.15 0.72 - 2.16

MATERiALS OF CONSTRUCTiON

Regulator

Body, Lower Diaphragm Casing, Spring Housing Ductile iron to BS EN 1563 Grade EN-GJS-400-18

Orifice & Valve Stem Brass: BS 2784 CZ121

Top Cap, Diaphragm Carrier, Valve Head Aluminium: BS 4300/5 FC1

Diaphragm, ‘O’ Rings, Valve Disc Nitrile

Adjusting Screw & Spring Carrier Mild Steel: BS 970 070M20 zinc Plated

Spring Spring Steel: BS 5216

Safety Cut-Off Valve

Component Series 309 Series 315

Body Aluminium: BS 1490 LM6 Plated Carbon Steel: BS 970 220M070

Valve Spindle Stainless Steel: BS 970 316S31 Stainless Steel: BS 970 316S31

Valve Seating Polyurethane Polyurethane

Diaphragm: MP Nitrile Reinforced Nitrile: EN 278 HP - Epichorhydrin

Latch & Spring Adjuster Brass: BS 2874 CZ121 Brass: BS 2874 CZ121

Rollers Stainless Steel: DIN X90 CRMOV18 Stainless Steel: AISI 440C

Diaphragm Plates Aluminium: BS 1474 HE 30 Aluminium: BS 1474 2011

Springs Spring Steel: BS 1408 Coated Spring Steel: BS 5215 HS3

Top Casing Aluminium: BS 1474 HE 30 Plated Carbon Steel: BS 970 220M070

Minimum OPCO & UPCO/OPCO Settings:

• Minimum Overpressure setting: 35 mbar (14” wg) or 10% above regulator outlet setting, whichever is the greater value

• Minimum Under Pressure setting: 20 mbar (8” wg) or 10% below regulator outlet setting, whichever is the greater value

• Minimum Differential pressure between UPCO & OPCO setting: 80 mbarg (32” wg)

ins mm bar psi bar psi bar psi 1⁄8 3.17 69 1000 10 145 69 1000 3⁄16 4.76 69 1000 10 145 69 1000 1⁄4 6.35 34.5 500 10 145 34.5 500 5⁄16 8.0 27.5 400 10 145 27.5 400 3⁄8 9.5 20.7 300 10 145 20.7 300 1⁄2 12.7 7 101.5 7 101.5 7 101.5

SPRiNG SELECTiON: S.315 SAFETY CUT-OFF VALVE Model Type Spring Cut-Off Range Number Colour bar psi 1132 White/Blue 0.5 - 0.8 7.2 - 11.6 1133 White/Red 0.7 - 1.1 10.1 - 16 OPCO 1134 White Grey 1.0 - 1.8 14.5 - 26.1 315-MP2

1135 White/Brown 1.5 - 2.9 21.7 - 42 1104 Purple 0.05 - 0.15 0.72 - 2.16 1105 Black 0.1 - 0.3 2.1 - 3.6 UPCO 1255 Green 0.25 - 0.7 2.9 - 8.1 1028 Black/White 0.64 - 1.6 9.3 - 16 OPCO 1192 White/Purple 2 - 4 29 - 58 1104 Purple 0.05 - 0.15 0.72 - 2.16 315-MP4 UPCO 1105 Black 0.1 - 0.3 2.1 - 3.6 1255 Green 0.25 - 0.7 2.9 - 8.1 1028 Black/White 0.64 - 1.6 9.3 - 16 OPCO 1197 Blue 3 - 14 43.5 - 203 1104 Purple 0.12 - 0.47 1.73 - 6.78 315-HP UPCO 1105 Black 0.45 - 0.82 6.5 - 11.8 1255 Green 0.6 - 1.8 8.7 - 26 1028 Black/White 2 - 3.5 29 - 50

Note: Maximum inlet Pressure for S.309 is 10 bar (145 psi)

GAS PRESSURE REGULATOR SERiES 204

5

0.7

1.1

1.4

2.1

2.8

3.5

5.2

6.9

8.6

0.34

0.69

1.0

1.4

1.7

3.5

5.2

6.9

10.4

13.8

20.7

27.6

34.5

51.8

69.0

73

99

144

203

311

382

538

594

-

113

155

322

509

617

-

-

-

-

-

-

-

59

79

96

138

169

220

305

424

509

82

104

215

305

424

594

764

1132

-

-

-

-

43

60

72

99

138

175

240

300

368

60

82

169

235

300

424

552

821

1076

-

-

-

29

41

50

65

84

107

150

195

220

45

59

104

147

195

280

362

535

693

863

-

-

19

26

31

41

50

59

83

107

130

26

33

59

83

107

152

201

294

387

481

708

962

9

12

15

19

23

28

39

51

61

12

16

28

39

51

73

93

136

181

226

325

439

1.1

1.4

1.7

3.5

5.2

6.9

10.4

13.8

20.7

34.5

113

158

220

385

538

685

-

-

-

-

79

101

121

220

305

424

594

764

1132

-

67

84

101

175

240

300

438

566

821

-

42

55

65

107

150

195

280

362

535

863

23

30

36

59

83

107

152

201

294

481

11

14

17

28

39

51

73

93

136

226

Pressure bar

Pressure bar

Outlet Pressure Range - 0.21 to 0.82 bar Yellow Spring Number - SS 0261

Outlet Pressure Range - 0.69 to 1.72 bar Aluminium Spring Number - SS 0262

Capacity scmh - Orifice Size - ins (mm)

Capacity scmh - Orifice Size - ins (mm)

1\2" (12.7)

1\2" (12.7)

3\8" (9.5)

3\8" (9.5)

5\16" (7.9)

5\16" (7.9)

1\4" (6.4)

1\4" (6.4)

3\16" (4.8)

3\16" (4.8)

1\8" (3.2)

1\8" (3.2)

OUTLET

OUTLET

iNLET

iNLET

Capacities (Natural Gas, SG: 0.6)

6

GAS PRESSURE REGULATOR SERiES 204

Capacities (Natural Gas, SG: 0.6)

1.7

2.1

3.5

5.2

6.9

10.4

13.8

20.7

27.6

34.5

51.8

69.0

1.3

1.7

2.4

2.8

3.5

5.2

6.9

10.5

13.8

20.7

27.6

34.5

51.8

69.0

138

186

331

509

651

-

-

-

-

-

-

-

127

161

215

325

453

-

-

-

-

-

-

-

97

121

220

305

424

594

764

1132

-

-

-

-

99

124

158

240

305

467

608

892

-

-

-

-

73

96

175

240

300

424

552

821

1076

-

-

-

75

92

120

178

235

351

453

665

877

-

-

-

55

67

107

150

195

280

362

535

693

863

-

-

65

79

99

141

181

260

339

495

651

821

-

-

29

38

59

83

107

152

201

294

387

481

708

963

38

46

59

83

107

152

201

294

387

481

708

962

14

18

28

39

51

73

93

136

181

226

325

439

18

22

27

39

51

73

93

136

181

226

325

439

2.1

3.5

5.2

6.9

10.4

13.8

20.7

27.6

34.5

51.8

69.0

167

331

509

651

-

-

-

-

-

-

-

116

220

305

424

594

764

1132

-

-

-

-

90

175

240

300

424

552

821

1076

-

-

-

62

107

150

195

280

362

535

693

863

-

-

33

59

83

107

152

201

294

387

481

708

963

16

28

39

51

73

93

136

181

226

325

439

Pressure bar

Pressure bar

Outlet Pressure Range - 0.69 to 1.72 bar Aluminium Spring Number - SS 0262

Outlet Pressure Range - 1.38 to 4.13 bar White Spring Number - SS 0263

Capacity scmh - Orifice Size - ins (mm)

Capacity scmh - Orifice Size - ins (mm)

1\2" (12.7)

1\2" (12.7)

3\8" (9.5)

3\8" (9.5)

5\16" (7.9)

5\16" (7.9)

1\4" (6.4)

1\4" (6.4)

3\16" (4.8)

3\16" (4.8)

1\8" (3.2)

1\8" (3.2)

OUTLET

OUTLET

iNLET

iNLET

2.0

GAS PRESSURE REGULATOR SERiES 204

7

2.8

3.5

5.2

6.9

10.4

13.8

20.7

27.6

34.5

51.8

69.0

2.7

3.4

4.1

169

203

356

481

-

-

-

-

-

-

-

135

164

243

339

509

665

977

-

-

-

-

93

113

182

243

368

495

736

962

-

-

-

82

96

147

195

280

362

535

693

863

-

-

45

55

83

107

152

201

294

387

481

708

963

21

253

39

51

73

93

136

181

226

325

439

4.2

5.2

6.9

10.4

13.8

20.7

27.6

34.5

51.8

69.0

4.5

5.2

6.9

10.4

13.8

20.7

27.6

34.5

51.8

69.0

252

382

523

-

-

-

-

-

-

-

269

379

566

-

-

-

-

-

-

-

178

252

354

538

722

1062

-

-

-

-

192

243

362

552

736

1076

-

-

-

-

140

195

274

410

538

792

1047

-

-

-

155

201

288

424

566

835

1104

-

-

-

111

148

195

280

362

535

693

863

-

-

110

138

195

280

362

535

693

863

-

-

60

80

107

152

201

294

387

481

708

862

60

76

107

152

201

294

387

481

708

962

29

38

50

73

93

136

181

226

325

439

28

36

50

73

93

136

181

226

352

439

Pressure bar

Outlet Pressure Range - 1.38 to 4.13 bar White Spring Number - SS 0263

Capacity scmh - Orifice Size - ins (mm)

1\2" (12.7) 3\8" (9.5) 5\16" (7.9) 1\4" (6.4) 3\16" (4.8) 1\8" (3.2)OUTLET iNLET

Capacities (Natural Gas, SG: 0.6)

8

GAS PRESSURE REGULATOR SERiES 204

5.5

6.2

6.9

10.4

13.8

20.7

27.6

34.5

51.8

69.0

5.1

6.9

8.6

196

334

438

-

-

-

-

-

-

-

141

178

215

339

481

713

-

-

-

-

107

133

152

230

334

489

645

-

-

-

97

120

138

206

274

402

529

651

-

-

65

82

97

152

201

294

387

481

708

962

33

41

47

70

93

136

181

226

325

439

7.6

8.6

10.4

13.8

20.7

27.6

34.5

51.8

69.0

9.3

10.4

13.8

20.7

27.6

34.5

51.8

69.0

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

223

294

387

546

804

-

-

-

-

322

424

668

982

-

-

-

-

178

237

320

458

671

883

-

-

-

269

339

546

801

1056

-

-

-

167

206

257

339

498

651

815

-

-

215

257

362

535

693

863

-

-

99

121

152

201

294

387

481

708

962

118

141

201

294

387

481

708

962

46

56

70

93

136

181

226

325

439

55

66

93

136

181

226

325

439

Pressure bar

Outlet Pressure Range - 3.45 to 8.6 bar Tan Spring Number - SS 0264

Capacity scmh - Orifice Size - ins (mm)

1\2" (12.7) 3\8" (9.5) 5\16" (7.9) 1\4" (6.4) 3\16" (4.8) 1\8" (3.2)OUTLET iNLET

Capacities (Natural Gas, SG: 0.6)

GAS PRESSURE REGULATOR SERiES 204

9

8.6

10.4

13.8

20.7

27.6

34.5

51.8

69.0

6.9

10.3

13.8

-

-

-

-

-

-

-

-

150

188

249

365

481

-

-

-

124

155

206

303

399

-

-

-

90

133

150

220

291

362

-

-

65

84

116

178

235

291

433

572

40

49

65

116

153

189

283

371

12.1

13.8

20.7

27.6

34.5

51.8

69.0

15.6

20.7

27.6

34.5

51.8

68.97

-

-

-

-

-

-

-

-

-

-

-

-

-

283

339

515

679

-

-

-

481

699

934

-

-

-

252

305

461

611

-

-

-

413

608

807

-

-

-

195

235

356

470

583

-

-

300

441

583

730

-

-

121

161

267

351

436

651

863

198

283

382

467

693

934

68

82

124

164

203

303

402

87

130

175

218

322

430

Pressure bar

Outlet Pressure Range - 6.90 to 13.8 bar Grey Spring Number - SS 0265

Capacity scmh - Orifice Size - ins (mm)

1\2" (12.7) 3\8" (9.5) 5\16" (7.9) 1\4" (6.4) 3\16" (4.8) 1\8" (3.2)OUTLET iNLET

Capacities (Natural Gas, SG: 0.6)

10

GAS PRESSURE REGULATOR SERiES 204

Sectional Arrangement

Adjusting Screw

Interchangeable Springs

Union Connector

Ductile Iron Body

Interchangeable Orifices

INLET

Vent Rc 1⁄2

ECL Connection Rc 1⁄4

Inlet Pressure Outlet Pressure Atmospheric Pressure

GAS PRESSURE REGULATOR SERiES 204

11

Dimensions & Weights

Regulator only 102 - - - 127 108 256 111 280 153 - - 7 - - -

With S.309 102 225 225 - 127 108 256 111 280 153 110 345 - 9 9.2 -

With S.315 102 345 345 365 127 108 256 111 280 153 110 485 - 15 15 15

A

MP2 MP4 HP MP2 MP4 HP

B C D E F G H J K weight KgModel

H

External Impulse Connection Rc 1⁄4

GE

FØ

A /2

D C B

Vent Rc1⁄2 Series 20435mm

A

Ø J

K

All contents are subject to copyright, with the possible exception of information that is universal and/or public domain.Bryan Donkin RMG Gas Controls Limited policy is one of continuous improvement and development.The company reserves the right to change, withdraw and introduce improved designs without notice.

ENGLAND

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GERMANY

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34123 Kassel, Germany

Tel: +49 (0)561 5007-0

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Otto-Hahn-Strasse 5

35510 Butzbach, Germany

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