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Pneumatic Globe Valve

Products > Pneumatic Globe Valve > Pneumatic Globe Valve

Pneumatic Globe Valve

Nominal Diameter: DN50 ~ 300mm
Nominal: PN1.6 ~ 4.0MPa
Body Material: WCB, ZGlCrl8Ni9Ti, ZGlCrl8Ni2Mo2Ti, ZG00Crl7Nil4M02 , ZGlCr5MO
Suitable Medium: water, oil, steam, nitric acid, phosphoric acids, bases, mixed acid, urea, ammonium carbamate solution
Temperature: 200 ~ 550 ℃
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First, The Exhaust Valve

Pneumatic globe valve with double acting cylinder, the use of the upper chamber intake or the lower chamber into the long-distance control valve, easy to operate and flexible. Simple structure, easy to manufacture and maintain; work stroke is small, opening and closing time is short; closed body (valve) and the valve seat sealing surface with a tapered seal, close the force small, resistant to erosion, sealed and reliable. Seat for the replacement valve seat, can be any combination with the closure of the sealing surface material matching to meet the working conditions, to extend the service life.
 

Second,  Structure Features
 1, Selection of sophisticated, in line with domestic and foreign relevant standards, reasonable structure, handsome in appearance. 
 2, The valve, the valve seat sealing surface with iron-based alloy surfacing or Stellite (Stellite) cobalt-based hard alloy surfacing, wear, high temperature, corrosion resistance, scratch resistance, long service life The 
 4, Stem and quenched and tempered surface treatment, a good corrosion resistance and scratch resistance. 
 5, Can be used in a variety of piping flange and flange sealing surface type to meet the needs of various projects and user requirements. 
 6, The full range of valve material, packing, gasket can be based on actual conditions or user requirements reasonable matching, can be applied to a variety of pressure, temperature and media conditions. 
 7, Inverted seal with a threaded connection Seal or body welded austenitic stainless steel, sealed and reliable, replace the filler can be carried out in the case of non-stop, convenient and quick, does not affect the system operation.
 

Third, The Implementation Of Standards

Design and Manufacture

GB / T1223

Connection Size

Structure Length

GB / T12221

Flange Size

JB / T79

Inspection and Testing

JB / T9092

Material

Carbon Steel

GB / T12229

Stainless Steel

GB / T12230

Alloy Steel

Q / ZB6


Fourth, The Main Parts Of The Material

Body

Cap

Discs

Sealing Ring

Stem

Filler

Applicable Media

Applicable Temperature (≤ ℃)

WCB

WCB + D507MO

D577

2Crl3

Flexible graphite

Water, Oil, Steam

425

ZGlCrl8Ni9Ti

0Crl8Ni9Ti 
Stellite12

Stellite6

lCrl8Ni9Ti

PTFE

Nitric Acid

200

ZGlCrl8Ni2Mo2Ti

CF8M 
Stellite12

lCrl8Ni2Mo2Ti

lCrl8Ni2Mo2Ti

PTFE

Phosphoric Acid, 
Alkali, Mixed Acid

200

ZG00Crl7Nil4M02

CF3M 
Stellite12

Stel1ite6

316L

PTFE

Phosphoric Acid, 
Urea, Methyl Ammonium Liquid

200

ZGlCr5MO

ZGlCr5MO 
Stellite12

Stel1ite6

25Cr2Mo1VA

Flexible Graphite

Water, Oil, Steam

550



 Fifth,
Main Connection Ssize

Nominal Pressure PN (MPa)

Nominal Diameter DN (mm)

Standard Value

Reference

L

D

D1

n2

b

f

Z-φd

L1

H

1.6

50

230

160

125

100

16

3

4-φ18

185

645

65

290

180

145

120

18

3

4-φ18

232

690

80

310

195

160

135

20

3

8-φ18

232

715

100

350

215

180

155

20

3

8-φ18

232

770

125

400

254

210

185

22

3

8-φ18

283

780

150

480

280

240

210

24

3

8-φ23

283

810

200

600

335

295

265

26

3

12-φ23

283

967

250

622

405

355

320

30

3

12-φ25

283

1143

300

698

460

410

375

30

4

12-φ25

283

1292

2.5

50

230

160

125

100

20

3

4-φ18

185

645

65

290

180

145

120

22

3

8-φ18

232

690

80

310

195

160

135

22

3

8-φ18

232

715

100

350

230

190

160

24

3

8-φ23

232

770

125

400

270

220

188

28

3

8-φ25

283

780

150

480

300

250

218

30

3

8-φ25

283

810

200

600

360

310

278

34

3

12-φ25

283

967

250

622

425

370

332

36

3

12-φ30

283

1143

300

698

485

430

390

40

4

16-φ30

283

1292

4.0

50

230

160

125

100

20

3

4-φ18

185

645

65

290

180

145

120

22

3

8-φ18

232

690

80

310

195

160

135

22

3

8-φ18

232

715

100

350

230

190

160

24

3

8-φ23

232

770

125

400

270

220

188

28

3

8-φ25

283

782

150

480

300

250

218

30

3

8-φ25

283

875

200

600

375

320

282

38

3

12-φ30

283

1160