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Yongjia Goole Valve Co.,Ltd

Address:  He yi Industrial Zone,Oubei Town,Wenzhou City,Zhejiang Province,P.R.China
Tel: 86-577- 57789960

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Position: Home > Products > Control Valve > Electric and pneumatic regualting valve
Electric and pneumatic regualting valve

ZJHN Pneumatic Double Seated Flow Regulating Valve

ZJHN Pneumatic Double Seated Flow Regulating Valve
ZJHN Pneumatic Double Seated Flow Regulating Valve

Detailed

GAZJHN Pneumatic diaphragm double-seated flow regulating valve.


The valve has double seats.The fluid outflow through the valve core of the upper and lower sealing surface.The unbalanced pressure is small.It is a balanced structure,which are widely used in petroleum,chemical,pharmaceutical,metallurgical,power plants,such as the industrial sector,to control of gas liquid medium such as steam.

GAZJHN Pneumatic diaphragm double-seated pressure regulating valve Structure


Valve Body.


Structure:flowing through type globe valve with double-seated.
DN:25~300mm.
PN:1.6~10.0Mpa or class 150~class 600.
Connections:flanged type.
Material:WCB,HT200 ZG230-450 ZG1Cr18Ni9Ti.ZG0Cr18Ni12Mo2Ti.
 
Upper Cover.


Normal Temp:-20°C~+200°C.
Heat Radiation Type:-40°C~+450°C.
Gland Connection:bolted type.
Packing:V type PTFE.FLEXIBLE GRAPHITE.S.S BELLOWS.
 
Valve Assembly.


Valve Core:Double guiding&double-seated plug type.
Cv Features:Linear,Equal Percentage or Quick opening.
Material:1Cr18Ni9Ti0Cr18Ni12Mo2Ti.
 
Actuator.


Model:Multi-spring diaphragm type actuator
Material of the diaphragm:NBR with reinforced polyester fabric.
Spring range:0.02~0.1/0.04~0.2Mpa.
Air Supply:0.14/0.16/0.28Mpa.
Air Supply Connector:M10*1.
Working Temp:-30~+70°C.
Valve Acting Type:air to close or air to open.
Accessories:positioner,,hand wheel.
Parameters:(with positioner.)
Leakage:<0.5%×Kv.
Intrinsic Erro:+/-1.5%.
Controlling Range:30:1.


GAZJHN Pneumatic diaphragm double-seated flow regulating valve Specifications,Kv,Movement&Allowable Differential Pressure.
 

 

DN(mm)

25

32

40

50

65

80

100

125

150

200

Size of seat(mm)

15

20

25

32

40

50

65

80

100

125

150

200

Flow coefficient Kv

4

6.3

10

16

25

40

63

100

160

250

400

630

Movement(mm)

16

25

40

60

Allowable differential pressure(Mpa)

5.8

4.9

3.8

2.9

4.0

3.3

2.6

3.6

3.0

2.3

Note:It refers to the differential pressure when the valves in open position.

 
GAZJHN Pneumatic diaphragm double-seated flow regulating valve Dimension.

 

 

DN

Actuator

H

øA

H1

L

Normal TEMP

Heat Radiator Type.

PN1.6

PN4.0

PN6.4

25

ZHA22

498

648

285

117

185

190

205

32

ZHA22

501

651

285

120

200

210

220

40

ZHA22

522

691

285

139

220

230

240

50

ZHA22

530

699

285

144

250

255

265

65

ZHA34

645

815

363

188

275

285

295

80

ZHA34

661

835

363

208

305

310

325

100

ZHA34

687

887

363

220

350

355

370

125

ZHA34

1234

1444

363

270

410

425

440

150

ZHA45

1242

1492

470

280

450

460

475

200

ZHA45

1394

1654

470

320

550

560

570

 

Hits:  UpdateTime:2017-09-12 21:47:30  【Printing】  【Close
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