W PRESSURE REDUCI NG VALVEBom to save enetgA

GD.45P. GD-45Features

1. These valves are compact and lightweight.2. These valves are simple in structure and easy to maintain.3. These valves are applicable to an inlet pressure of up to 2.0 MPa.4. A screen (60 mesh) is incorporated to protect the valve and

the valve seat from dirt.5, These valves offer excellent workability with the aid of an

external pressure type bellows used as the pressure sensingpart.

6. Pressure adjustment is handle-operated and does not requireany tool (GD-45P).

Specifications

Model GD45P.GD45Application Steam

lnlet pressure 2.0 MPa or below

Reduced pressure(A) 0.02-0.1 MPa(B)0.05-0.4 MPa(C) 0.35-1.0 MPa

Minimum differential Dressure 0,05 MPaMaximum pressure reduction ratio 1 0 : 1

Maximum temperature 220Valve seat leakaoe 0.1o/o or below of rated flow rate

il4aterialBody Ductile cast iron

Valve. valve seat Stainless steelBellows Phosphor bronze

Connection JIS Rc screwed

Dimensions (mm) and Weights (kg)Nominal size d L H 1 H Weight

15A Rc 112 1 1 1 47 213 Q16 5 . 2

204 Rc 3/4 1 1 1 47 213 (216\ 5 . 2

254 R c 1 111 47 213 (216\ 3.2O The values in parentheses are the dimensions of the GD-45.

GD-45P GD45

Chart for Selecting Nominal Sizes1 , 1 L 2 1 . 3 1 . 7

0.1

0.9

8 o t.o

ooI o.sCIttE o.ottod 0 3'.,i4

o.2

| 200120 2lo 260 alzeNomlnel

154

0 30 60 90 120 150 180 240 270 300

0 50 100 150 200 250 300 350 400 450 500

204

254

Flow rate kg/h

IExample]When selecting the nominal size of a pressure reducing valve whoseinlet pressure (Pr), reduced pressure (Pr), and flow rate are 1,3 MPa,0.6 MPa, and 200 kg/h, respectively, first find the intersection point ofthe inlet pressure of 1.3 MPa and the reduced pressure of 0.6 MPa.Trace down vertically from this intersection point to find the nominal sizewith a flow rate of 200 kg/h or over. In this case, the nominal size is 20A.

GD-45P

GD-45

0

0.9

\0.8

\0.7

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PRESSU RE REDUCI NG VALVE

GP-l 000EN o 1000HFeatures

1. The GP-1000EN can be replaced easily from existing valve because it complies with face-to-facedimensions of the EN standard.

2. These valves respond very sharply to the fluctuation of inlet pressure and the change of the flow rate,so that the reduced pressure can be kept at a constant level.

3. Pressure adjustment is easy, and the set pressure range is wide.4. These valves comply with the standard of SHASE-S106 Pressure Reducing Valves (The Society of

Heating, Air-Condit ioning and Sanitary Engineers of Japan).

Specifications

Model GP-1000EN I GP-1000HApplication Steam

lnlet pressure 0 . 1 - 1 . 6 M P a

Reduced oressure(A) 0 .05- 0 .9 MPa (B) 0 .9 -1 .4 MPa

90% or below of inlet pressure (gauge pressure)Minimum differential Dressure 0.05 MPa

Maximum oressure reduction ratio 20:1Maximum temperature zzu w

Valve seat leakaqe 0.01% or below of rated flow rate

Material

Bodv Ductile cast ironMain valve, valve seat Stainless steel

Pilot valve. oilot valve seat Stainless steelPiston, cvl inder Stainless steel

Diaohraom Stainless steel

Connection EN1oe2 pN25 | ^#3:J,tJe',?""$",

Dimensions (mm) and Weights (kg)

Nominal sizeI

H H 1Weight

GP-lOOOEN GP-1000H GP.,IOOOEN GP-1000H

15A 50 1 5 0 291 64 8 .0 B . 0 ( - )204 50 1 5 5 ) 291 64 8 . 5 8 .5 (

254 60 1 6 0 1 60) 300 67 10 .0 10 .0 (10 .032A' 80 1 9 0 1 80) 82 14.0 14.0 (14.0

40A 200 1 9 0 200) ? ? ? 82 1 4 . 5 ( 1 5 . 5

50A 230 220(230\ oa 2 1 . 0 20.0 Q1.065A 290 245 (278) 100 30.0 30.0 (30.080A 3 1 0 2e0 (310) 404 122 37.0 35.0 (37.0

100A 350 330 (350) 450 144 57.0 52.5 (57.0

lD The values in parentheses are the dimensions of valves with ASME class 300 flanged"

Specifications Selection Ghart

GP-1000H

1 . 6This range requires two-stage pressure reduction (B).

The valve does not fulfill soecifiecoerformance in this ranoe (C).' t t r t t l

0 . 1 0.2 0.3

Find the intersection point of the inlet and reduced pressures. lf theintersection point is within range (A) in the chart, the pressures arecontrollable with a single pressure reducing valve. They can be controlledby two-stage pressure reduction if the intersection point is within range(B). The valve does not fulfill specified performance in range (C).

1 . 4

6 a no - t . z

=E 1 0

3 o.aEc L n 6

Ic 0 4

0.2

0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0 1 .1

Reduced pressure MPa

1 . 2 1 . 3 1 . 4

-W#exmfu$ffimkwfiSdffi,**'*"r*;;ii*;-**

Nominal s ize 15A 20A 25A. 324 40A 50A 65A 80A 1 00ACv values 1 2.3 6 . 5 9 1 6 25 36 b4

Table of Corrected Gv ValuesO Tabte of rated Cv values (Gv value when the correction factor C = 1)

Note) When the reduced pressure is within either of the ranges shown below, calculate the corrected Cv value by multiplying the rated Cvvalue by the correction factor C obtained from the Fig. 1 .r When the inlet oressure is between 0.7 MPa and 1 .0 MPa and the oressure reduction rat io is over 1 0:1r When the inlet pressure is over 1 .0 MPa and the reduced pressure is 0.4 MPa or below

Nominal Sizes Selection Ghart (For Steam)1 . 5

1 .4

1 . 3

1 . 2

1 1

1 . 5

1 .4

1 . 3

1 . 2

1 1

1 . 0

o 0 .9

c n a

o u . /

o ^ ^C ) U O

c i ̂ -u . c

o 1 o

= 0 .9Ef o Ra - -oI o.z

o w . v

o

oE

" n.L

0 . 3

""t"""t"rao'

"at'r:::.."o"

""a" """t ^""t

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[Example 1]When selecting the nominal size of a pressure reducing valve whose inletpressure (Pr), reduced pressure (Pz), and steam f low rate are 0"6 MPa,0.4 MPa, and 800 kg/h, respectively, first find intersection point (A) of the inletDfessure of 0.6 MPa and the reduced oressure of 0.4 MPa. Trace downvertically from this intersection point to find intersection point (B) with the flowrate of 800 kg/h. Since intersection point (B) lies between nominal sizes 40Aand 50A, select the larger one, 50A.

[Example 2]When selecting the nominal size of a pressure reducing valve whose inletpressure (P1), reduced pressure (Pz), and steam f low rate are 0.8 MPa,0.05 MPa, and 600 kg/h, respectively, f i rst f ind intersection point (C) of the inletpressure of 0.8 MPa and the diagonal l ine. Trace down to the left from thisdiagonal l ine to f ind intersection point (D) with the reduced pressure of0.05 MPa. Trace down vertically from intersection point (D) to find intersectionpoint (E) with the flow rate of 600 kg/h. Since intersection point (E) lies betweennominal sizes 32A and 40A, select the larger one, 40A.

o.40.00 0 .05 0.10 0.15 0.20 0.25 0.30 0.35

Pz: Reduced pressure MPa

Fig. 1: Corrected Cv value

Pressure Gharacteristic Chart

0 0 .2 0 .4 0 .6 0 .8 1 .0 1 .2 1 .4 1 .6Inlet pressure MPa

This chart shows a variation in the reduced Dressurewhen the inlet pressure of 1.0 MPa is changed betweenthe range from 0.3 MPa to '1 .6 MPa with the reducedoressure set at 0.1 MPa.

Flow Characteristic Ghart

0 5 20 40 60 80 100%Flow rate

Shut-off pressure rise: Within 0.02 MPaOffset pressure: Within 0.03 MPa

(when the set pressure is between0.05 MPa and 0 .1 MPa)Within 0.05 MPa(when the set pressure is over0. '1 MPa and 1.4 MPa or below)

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INTERNATIONAL DEPT.*T

)l i 7-3, Futano-cho, Mizuho-ku, Nagoya, 467-0861 , Japan{ii*Si$i*,iS'i$i$ifi ,fi tr SWi $d;:* ;#6rillip;-6ril;ilriillj*

ht tp: / /www.yoshi take. j f , * - Phone: 81-52-881-7199 Fax: 81-52-BB1'7201 E-mai l : in tnt l@yoshi take.co. jp

Yoshitake reserves the right to change the materials or design of the products shown in this catalogue without prior notice. 063-00-22-05

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SOLENOID VALVE

DP-l 00 0 100FFeatures1. Ul t ra-h igh per formance technology g ives h igh prec is ion

in performance.2. Three-t imes more durabil i ty than our conventional models.3. ASM (Anti-Sticking Mechanism) for three-times more scale

resistance.4. Body and main parts made of stainless steel give higher

corrosion resistance, making usable for clean f luid.5. A combined internal component enables easy cartridge

replacement with this product instal led.

Specifications

DP-100

DP. lOOF

Dimensions (mm) and Weightso DP-100

Model DP-100 DP-1OOFApplication Steam, Air, Cold and hot water, Nz gas, COz gas (dry), Ar qas, Oil (20cSt or below)

Working pressure 0 - 1 .0 MPa (Unusable under vacuum)

Min. differential oressure 0 MPa (0.03 MPa or more is required when the coi l is set sideways.)Allowable valve seat leakaqe 50 ml/min under standard conditions (At air oressure of O.6 MPa)

Iemperature ranqe 5-180'C (Not aool icabale to freeze)Operation Normally closed

Material

Body Stainless steel

Piston Stainless steelValve disc PTFE

Connection JIS Rc screwed JIS 10K FF f langedSize 10A-50A 1 54-65A

Size 10A-25A 32A-65A 10A-25A 32A-65ARated voltaoe AC 100 | ZOOV selective type AC 1 10 I 220 V selective type

Allowable fluctuation Rated voltage -5o/o lo + 10o/o

Rated current 0.34 10.17 A 0.46 | 0 .23 A 0 . 3 2 l 0 . 1 6 A 0 . 4 2 t 0 . 2 1 AStartinq current 1 .64 | 0 .82 A 1 .90 / 0 .95 A 1.48 I 0 .74 A 1 .80 / 0 .90 Alnsulat ion class Insulat ion class H

Protective structure Dust t ight, Splash proof

Insulat ion resistance 500 MQ and more/500V meqgerWithstand voltaqe test 1500 V/min

Nominal size o L H H 1 Weioht10A Rc 3/8 70 1 2 7 1 A F 1 . 415A Rc 112 70 127 14.5 1 . 420A Rc 3/4 80 131 17.5 '1 4

254 R c 1 95 135 2 1 . 0 1 . 9324 Rc 1-114 1 1 0 172 26.0 3 . 140A Rc 1-112 120 178 29.5 4.050A R c 2 140 187 36.5 5.6

o DP-100FNominal size L H H1 Weisht

15A 120 1 6 1 47.5 2.7204 130 164 50.0 J - Z

254 145 177 62.5 4.5324 1 6 0 z t 5 67.5 6 . 9

40A 170 2 1 9 70.0 8 .050A 1 9 5 228 77.5 1 0 . 565A 1 9 8 238 87.5 12 .3

DP-100 DP-1OOF

Nominal Size SelectionChart (For Steam) Nominal Size Selection Ghart (For Air)

(go.=o

oooCL

o

oo-

1 . 0

0.9

0 .8

0 .7

0.6

0 .5

0.4

0 .3

o .2

0 . 1

1 . 0

0 .9

0 .8

0 .7

0 .6

0 . 5

0 .4

0 .3

0 .2

0 . 1

0

(Eo-=EooE

o

oo-

1 . 0

0 .9

0 .8

o.i

0.6

0 .5

0.4

0 .3

o .2

0 . '1

0

40o

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oato

g

oo-

0

?0

30

40

60BO

0 . 1

0

ct):oG

39lt

;

3oo400

6Uu O)aoO I

iooo I' - ( !

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iooo 3

6000

o " -E 4 0

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9 o r o og H

6 Froort- 6 ^^"O 4oo

600

2o0o

3000

4000

60008000

o=

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9 6

n6o

60o

How to use the chartWhen selecting the nominal size of a solenoid valve whose inletpressure (Pr), outlet pressure (Pz), and steam (saturated steam)flow rate (W) are 0.5 MPa, 0.3 MPa, and 800 kg/h, respectively,f irst f ind intersection ooint (a) of Pr = 0.5 MPa and Pz = 0.3 MPa.Trace down vertically from this intersection point (a) to findintersection point (b) with W = 800 kg/h. Since this intersectionpoint (b) Jies between nominal sizes 25A and 2324, select thelarqer one, 32A.

Nominal Size Selection Chart (For Water)

How to use the chartWhen selecting the nominal size of a solenoid valve whose inletpressure (Pr), outlet pressure (Pz), and air (20'C) flow rate (Q)are 0.5 MPa, 0.3 MPa, and 800 m'/h (standard condit ion),respectively, first find intersection point (a) of Pr = 0.5 MPa andPz = 0.3 MPa. Trace down vertically from this intersection point(a) to find intersection point (b) with Q = 800 m'/h (standardcondit ion). Since this intersection point (b) l ies between nominalsizes 20A and 25A, select the larger one, 25A.

1000

800

.E 4oo

-F 300JO rnnGL '150

!o , ^^E

r u u, . 8 0) u o

0.01 0 .02 0 .030.040.060.080.1 0 .2 0 .3 0 .4 0 .6 0 .8 1

AP: Differential pressure MPa

How to use the chartWhen selecting the nominal size of a solenoid valve whose inletpressure (Pr), outlet pressure (Pz), and flow rate (V) are 0.5 MPa,0.3 MPa, and 300 L/min, respectively, first find intersectionpoint (a) of the differential pressure before and after the valve[AP = 0.5 - 0.3 = 0.2 MPa] and V = 300 L/min. Since thisintersection point (a) lies between nominal sizes 25A and 32A,select the larger one, 32A.

( E 0o-= 0o ^L U

o ^u t uo

9 o

o uf o

0.2 0 .3 0 .4 0 .6 0 .8 1

W#e eua&i' *B d's*gfu'fle INTERNAIoNAL DEpr.#,j;.*::;&?ff--1T::* 7-3, Futano_-ch_o, Mizuho-ku, Nagoya, 467-0861, Japan

nitp:llwww.Vosnita(eip "- Phone: 81-52-881-7'199 Fax: 81-52-881-7201 E-mail:intntl@yoshitake.co.jpYoshitake reserves the right to change the materials or design of lhe products shown in this catalogue without prior notice. 065-00-22-05

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PRESSURE REDUCING VALVE

GP-2000GSFeatures1. Unique patented diaphragms enable superiior durability.2.200 mesh integral strainer prevents most scale problem

on the pilot valve.3. GP-2000 series, Yoshitake's original pilot-operated valve,

has proven its contribution various systems.4. Spherical valve provides a tight seal meeting ANSI Class lV.

O Valves with a ASME Class 150, ASME Class 300 or EN PN40 f langed are also avai lable.

Dimensions (mm) and Weight (kg)

Specifications

Connection J IS Rc J I S 1 O K F F JIS 2OK RF JIS 3OK RF

Application SteamMax. inlet pressure 3.0 MPa 1 . 0 M P a 2.0 MPa 3.0 MPa

Max. temperature 260"C

Reduced oressure

0.02-0 .15 MPa0.1-1 .4 MPa1.3-2.0 MPa

0.02-0 .15 MPa0.1-0 .85 MPa

0.02-0.15 MPa0.'1-'1 .4 MPa1.3-1 .7 MPa

0.02-0.15 MPa0.1-1 .4 MPa1.3-2"0 MPa

85% or below of inlet pressure (gauge pressure)

Minimum differential oressure 0.05 MPaMaximum oressure reduction ratio 2 O : 1

Valve seat leakaqe O.01To or below of rated flow rate

Material

Body Cast carbon steel

Main valve, valve seat Stellite overlaid stainless steel

Pilot valve. oilot valve seat Stainless steel

Diaphragm Stainless steel

<JlS Rc screwed>

Nominal size o L H H 1 Weight Cv value15A Rc 112 150 398 170 1 6204 Rc 3/4 150 ? O R 170 1 6 7.2254 R c 1 1 6 0 404 175 z t . c 1 0 . 9

324 Rc 1-114 180 434 192 24 14.340A Rc 1-112 '180 434 192 z1 1 B . B50A R c 2 230 498 216 4,7 32

<JlS 30K RF flanged>

Nominal size L H H1 Weight Cv value

15A 240 398 170 1 8204 240 398 170 1 8 7.225A. 250 404 175 24.5 1 0 . 932A. 260 434 192 27 14.340A 260 434 192 27 1 8 . 8

50A z3v 498 216 42 32

65A 294 552 z J l 75 6080A 314 575 zo4 84 78

100A 358 658 321 133 120

O t sR to 40A valves are welded flanged

Nominal Sizes Selection Chart (For Steam)

2 . O

1 . 9

1 . 4

1 " 7

1 . 6

1 _ 5

1 . 4

1 . 3

1 - 2

1 - 1

1

o .9o.ao .7o.6o.5o_4o .3o .2o . 1

Specifications Selection Chart

6o-=o

oooCLq)

:o-

Setpressure

o

oooCLttoo

T'oE

nO6"^0

$;'" p

""'" #^oo 3

1"T" ft^."

;

:.T"

60

$o

"""

6o-=9 o.rofo o.'tsI o . ta

oo 0 .13

$ o.rzItoE

o-

2 .O

1 " 9

1 . 4

1 . 7

1 . 6

1 - 5

1 . 4

1 . 3

1 . 2

1 . 1

1 . O

o .9o.ao.7o.6o.5o.4o .3o .2o . 1

.2

.0

0.2

4 l l t lThe valve does not fulfill specifiedperformance in this range (C).

fhis range requires

CharacteristicShut-off Dressure rise(within 0.02 MPa)

GhartOffsetWithin 10% of set pressureMinimum value: 0.02 MPa

(L

EooE

o(,)J

o)x.o_

o(!

Efooo

oof

ot'.io

Yo

x.3tr;

0 0 . ' 1 0 . 2 0 , 3 0 , 4 0 . 5 0 , 6 0 . 7 0 . 8 0 . 9 1 . 0 1 . 1 1 . 2 1 , 3 1 . 4 1 . 5 1 . 6 1 . 7 1 . 8 1 . 9 2 . 0

Pz:Reduced pressure MPaBased on the selection chart above, select a pressurereducing valve in the optimum manner. On the selectionchart, first find the intersection point of the inlet pressure(Pr) and the reduced pressure (P2). Two-stage pressurereduction is required if the intersection point lies in range(A), or the pressures are controllable with a singlepressure reducing valve if the intersection point is withinrange (B). The valve does not fulfill specifiedperformance in range (C). To adopt two-stage pressurereduction, separate two pressure reducing valves as faraway from each other as possible.

Flow

IExample]When selecting the nominal size of a pressure reducing valve whose inletpressure (Pr), reduced pressure (Pe), and flow rate are 0.6 MPa, 0.4 MPa, and600 kg/h, respectively, first find intersection point (a) of the inlet pressure of0.6 MPa and the reduced pressure of 0.4 MPa. Trace down vertically from thisintersection point to find intersection point (b) with the flow rate of 600 kg/h.Since intersection point (b) lies between nominal sizes 20A and 25A, select thelarger one, 25A.. Set the safety factor at 80 to 90%.

Flow rate

When selecting a nominal size, set the flow rate at B0 to90% of the rated flow rate, allowing for the pressure lossand heat loss of the stop valve, strainer, etc. to be usedbefore or after the pressure reducing valve. To enablethe pressure reducing valve to show a maximum flowcharacteristic, do not select a small piping diameter, asa countermeasure against the effect of pipingresistance. Select a nominal size based on the nominalsizes selection chart.

Pressure Characteristic Chart

0 0 .2 0 .4 0 .6 0 .8 1 .0 1 .2 1 .4 L6 1 .8 2 .O

Pr: Inlet pressure MPa

This chart shows a variation in the reduced pressurewhen the inlet pressure of 1.75 MPa is changedbetween the range from 0.2 MPa to 2.0 MPa with thereduced pressure set at 0.14 MPa.

o

68 " ,! q

p l

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t*5trruWWWXW{E I NrER NAnoNAL DEpr..:,+::.+r-igsffi ..,-.-...-r..,2 7-3, Futano-cho, Mizuho-ku, Nagoya,467-0861, Japanhttp.t **;.W.hit"k.;p Phone: 81-52-881-7199 Fax: 81-52-881-7201 E-mail : intnt l@yoshitake.co.jp

Yoshitake reserves the right to change the materials or design of the products shown in this catalogue without prior notice. 062-00-22-05