Pneumatic film two-seat regulating valve

Pneumatic film two-seat regulating valve

Product model: ZMAN, ZJHN
Nominal diameter: DN25~300mm
Pressure range: PN1.6~6.4MPa
Temperature range: -40 ℃~+450 ℃
Flange size: GB/T9113.2-2000
Valve body form: double seat straight through type
Valve material: WCBZG230-450, ZG1Cr18Ni9Ti
Valve core material: 1Cr18Ni9Ti (304) or Si Ti Lai alloy surfacing welding
Sealing filler: V-type polytetrafluoroethylene (F4), flexible graphite, stainless steel corrugated pipe
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Product overview

Pneumatic film double seat regulating valve is composed of multi-spring pneumatic film actuator and straight double guided double seat valve. It has the characteristics of compact structure, light weight, sensitive action, small pressure drop loss, large valve capacity, accurate flow characteristics, etc. It can control and adjust the flow medium by compressed air drive valve stem spool, and realize the automatic regulation and control of the process pipeline fluid medium. It is suitable for clean media where the leakage requirement is not strict and the pressure difference between the front and back of the valve is large. Widely used in petroleum, chemical, pharmaceutical, metallurgy, power station and other industrial control fields, mainly control gas, liquid, steam and other media.




Main connect dimension

DN(mm)

25

32

40

50

65

80

100

125

150

200

A

280

308

395

500

 

L

PN16

160

180

200

230

290

310

350

400

480

600

PN64

210

222

251

286

311

337

394

440

508

610

 

H1

PN16

91

108

118

135

150

185

202

225

303

340

PN40

91

108

118

135

150

185

202

225

303

340

PN64

120

132

137

159

179

205

253

266

288

376

 

H

 

Common

PN16

376

420

420

420

580

580

610

730

800

800

PN40

376

420

420

420

580

580

610

730

800

800

PN64

395

445

445

445

595

595

650

780

850

850

 

H2

-100℃

500

600

700

-200℃

700

800

900

-250℃

900

1000

1100

 

Weight(Kg)

 

Common

PN16

23

24

29

32

58

70

85

135

165

220

PN40

23

24

29

32

58

70

87

138

172

230

PN64

26

27

35

40

75

90

102

155

200

320


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