Products > Control valve > Pneumatic thin film cryogenic control valve

Pneumatic thin film cryogenic control valve

Model: ZMAP-D
Nominal diameter: DN15 ~ 200mm
Nominal pressure: PN16 ~ 64MPa
Temperature: -60 ~ -250 ℃
Main material: carbon steel, stainless steel, chromium molybdenum steel
Medium: oxygen, nitrogen and other
Driving mode : aerodynamic
Design criteria: GB / T17213
Flange standard: GB / T9113, JB / T79 , HG20594 and other standard
Inspection standards: GB / T4213
Form connect: flange (FF RF RTJ), welding (SW BW), thread (for Within 1 "
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First, the main technical performance indicators

Leakage rate: single seat valve, small flow valve is less than the rated capacity of the valve 10-4

Double-seat valve, less than the rated capacity of the valve 5 × 10-3

Back to the difference: with locator, less than 3% of the full stroke             

Basic error: with locator, less than ± 3 full stroke                  

Note: The standard V-type PTFE packing.

 

Second, the main technical parameters

DN(mm)






















Seat diameter (mm)

3

4

5

6

7

8

9

10

12

15

20

26

32

40

50

66

80

100

125

150

200

Flow coefficient KV

Small flow valve

0.08

0.12

0.20

0.30

0.50

0.80

1.00

-

-

-

-

-

-

-

-

-

-

-

-

-

-

Single seat valve

-

-

-

-

-

-

-

1.2

2.0

3.2

5.0

8

13

22

32

50

80

120

200

280

450

Double seat valve

-

-

-

-

-

-

-

-

-

-

-

10

16

25

40

72

100

160

250

400

630

Rated travel (mm)

10

16

25

40

60

Adjustable range

30: 1

Nominal pressure

Standard products 1.6,4.0,6.4 MPa;

Spool form

Single, double-seat valve for the direct casting ball valve, a small flow valve forging valve

Flow characteristics

Equal percentage, straight line, quick opening

The role of form

Open air, gas off type

Operating temperature

-250 ~ 60 ℃

Flange standard

In line with JB78-59, JB79-59 standards, according to JB / T79.1-94, JB / 179.2-94, HG20592-2009, ANSI, JIS, DIN and other standard order production

Execution agency

ZMAB pneumatic film actuator, ZHAB small pneumatic film actuator

Can be equipped with accessories

Positioner, Solenoid valve, Air filter regulator, Limit switch, Valve position feedback, Emergency action device, Hand wheel mechanism, etc.

 Note: The working temperature, the nominal pressure, the nominal diameter of the products beyond the scope of the list can negotiate with the Company to resolve.

 

Third, the medium temperature range

Nominal diameter 
takeover coordinate size H (mm) 
for the temperature range (℃)

D1

D2

D3

-60 ~ -100

-100 ~ -200

-200 ~ -250

G1 / 2 *, G3 / 4 *, 20 ~ 50

500

700

900

65 ~ 100

600

800

1000

125 ~ 200

700

900

1100

 Note: The working temperature, the nominal pressure, the nominal diameter of the products beyond the scope of the list can negotiate with the Company to resolve.

 

Fourth, the main components and parts

Part name

Body

Core seat

filler

Material

Cast stainless steel (ZG1Cr18Ni9Ti, ZGOCr18Ni12Mo2Ti), etc.

1Cr18Ni9Ti, OCr18Ni12Mo2T and so on

V-type PTFE 

 

 

Fifth, flange distance and dimensions

Nominal diameter

L (mm)

H2 (mm)

H1 (mm)

D (mm)

D1 (mm)

D2

D3

nd

PN1.6

PN4.0

PN6.4

Open air

Qi off

Small flow valve
single seat valve

Double seat valve

G1 / 2 *, G3 / 4 *

80

412

365

19

-

230

135

160

190

-

20

180

180

190

492

445

74

-

280

235

260

290

8-φ14

25

185

190

200

440

99

104

235

260

290

32

200

210

210

443

105

107

255

285

315

40

220

230

235

489

117

127

325

280

305

355

8-φ16

50

250

255

265

499

132

132

310

340

370

65

275

285

295

641

165

175

410

345

375

410

10-φ16

80

300

310

320

644

168

185

370

405

440

10-φ18

100

350

355

370

653

177

202

430

460

490

12-φ18

125

410

425

440

784

225

250

495

470

525

560

16-φ18

150

450

460

475

782

233

260

550

590

630

200

550

560

570

779

272

302

660

700

740

20-φ18