Pneumatic Film High Temperature Control Valve

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Pneumatic Film High Temperature Control Valve

Product Model: ZJSGW-P (M)
Nominal Diameter: DN20 ~ 300mm
Nominal Pressure: PN 1.6,2.5,4.0,6.4,10.0 MPa
Ambient Temperature: -30 ~ + 70 ℃
Suitable Medium: Gas, Liquid, Vapor and Other media
Connected Standard: Flange (FF RF RTJ), Solder (SW BW), Thread (for 1 "or less)
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First, The Pneumatic High Temperature Control Valve Product Overview

ZJSGW-P (M) series of pneumatic high temperature control valve, by the multi-spring pneumatic film actuator and low flow resistance high temperature control valve body composition, multi-spring actuator height is low, light weight, easy to install. 


Pneumatic high temperature control valve body flow channel was S streamlined, with a compact, light weight, action sensitive, low pressure drop, valve capacity, accurate flow characteristics, easy maintenance, can be used for harsh working conditions. Pneumatic thin film high temperature control valve with electric - air valve positioning or gas - pneumatic valve positioner, through the input 4-20mA control signal can control the operation, can achieve the process of pipeline fluid medium automatic control. 


Pneumatic high temperature control valve is widely used in gas, liquid, steam and other media parameters such as pressure, flow, temperature, level and other parameters remain at a given value. 


Pneumatic high temperature control valve is particularly suitable for allowing leakage is small, the valve before and after the pressure difference is not high and high temperature occasions.
 

Second, The Main Technical Parameters  Of High Temperature Control Valve 

1 , The Valve Body

Body FormThrough Casting Ball Valve

Nominal Diameter

DN20 ~ 300mm

Nominal Pressure

PN 1.6, 2.5, 4.0, 6.4, 10.0 MPa

Flange Standard

GB / T9113, JB / T79, HG20594 and other standards

Connection form

Flange (FF RF RTJ), solder (SW BW), thread (for 1 "or less)

Bonnet Form

High temperature + 250 ~ +450 ℃, ultra-high temperature + 250 ~ +560 ℃

Gland Type

Bolt compression

Sealed Packing

V-type PTFE packing, impregnated with polytetrafluoroethylene asbestos packing, asbestos textile filler, graphite filler

Body Material

Cast steel (WCB), stainless steel (CF8, CF8M, CF3, CF3M), chrome molybdenum steel


 2 , Trim

Spool FormSingle Seat, Sleeve Structure

Flow Characteristics

Linear, Equal Percentage

Spool Material

Stainless Steel (304,304L, 316,316L)


 3 , The Implementation Of Institutions And Accessories, The Form Of Action

Actuator Type

ZHA / B multi-spring film film actuator

Actuator Type

ZHA / B-22

ZHA / B-23

ZHAB-34

ZHA / B-45

ZHA / B-56

Effective Area (cm2)

350

350

560

900

1400

Travel (mm)

10,16

25

40

40,60

100

Spring Range (KPa)

20 to 100 (standard), 20 to 60, 60 to 100, 40 to 200, 80 to 240

Diaphragm Material

Rubber clip nylon cloth, ethylene propylene rubber clip nylon cloth

Supply Pressure

140 ~ 400KPa

Air Interface

RC1 / 4 "

Ambient Temperature


Can be equipped with accessories

Locator, air filter pressure reducer, security valve, hand wheel institutions and so on

Form Of Action

(B) - When the valve is open (FO); Gas open (K) - Valve when the valve off (FC)


 Third, The Main Performance Indicators Of Pneumatic High Temperature Control Valve 

Project

Without LocatorWith Locator

Basic Error%

± 5.0

± 1.0

Backlash%

≤3.0

≤1.0

Dead Zone%

≤3.0

≤0.4

Always Point Deviation%

Open air

Starting Point

± 2.5

± 1.0

Starting Point

± 5.0

± 1.0

Gas off

Starting Point

± 5.0

± 1.0

End

± 2.5

± 1.0

Rated Stroke Deviation%

≤2.5

Leakage L / H

0.01% × valve rated capacity

Adjustable Range R

30: 1


 Fourth, The Pneumatic High Temperature Regulating Valve  Rated Flow Coefficient KV, Allow Pressure

Nominal Diameter DN (mm)20253240506580100125150200250300

Seat Diameter (dn)

20

25

32

40

50

65

80

100

125

150

200

250

300

Rated Flow Coefficient (KV)

Single Seat

6.9

11

17.6

27.5

44

69

110

176

275

440

630

875

1250

Sleeve

6.3

10

16

25

40

63

100

155

250

370

580

900

1300

Allowable Differential Pressure (MPa)

Single Seat

3.8

3.2

3.0

2.0

1.8

1.5

1.4

1.0

0,7

0.6

0.5

0.3

0.1

Sleeve

6.4

6.4

5.2

5.2

4.6

4.6

3.7

3.7

3.5

3.1

3.1

2.6

2.2

Rated Travel (mm)

16

25

40

60

100

Actuator Type

ZHA / B-22

ZHA / B-23

ZHA / B-34

ZHA / B-45

ZHA / B-56

 

5, Pneumatic High Temperature Control Valve  Main Connection Size

Nominal Diameter DN (mm)20253240506580100125150200250300

L

PN16 / 25

181

184

200

222

254

276

298

352

410

451

550

640

880

PN40

194

197

200

235

267

292

317

368

425

473

640

760

910

PN64

206

200

210

251

286

311

337

394

440

508

670

810

950

H

PN16 / 25

52.5

57.5

75

75

85.5

92.5

100

110

142.5

158

170

195

230

PN40

52.5

57.5

75

75

82.5

92.5

100

117.5

150

167.5

187.5

205

245

PN64

65

40

85

85

90

102.5

107.5

125

172.5

195

207.5

230

260

H1

370

396

428

428

436

415

464

507

690

840

632

725

882

H2

298

298

298

298

298

380

380

380

510

510

510

650

650

H3

180

180

180

180

180

236

236

236

310

310

310

380

380

L1

280

280

280

280

280

350

350

350

475

475

475

560

560

A

282

282

282

282

282

360

360

360

470

470

470

580

580

C

220

220

220

220

220

270

270

270

320

320

320

400

400