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Oxygen pneumatic single seat regulating valve
Product model: WTZXS
Nominal diameter: DN15 ~ DN200mm
Nominal pressure: PN0.6 ~ 6.4mpa
Applicable media: oxygen, nitrogen, air, etc
Applicable temperature: -20~150℃
Operating temperature: normal temperature
Connection type: flange
Main material: stainless steel, alloy steel, etc
Product details

Oxygen pneumatic single seat control valve main parts material

The body,Cover

ZG1Cr18Ni9Ti

Spool, valve seat

1Cr18Ni9Ti,Surfacing of si ti lai alloy

Soft seal spool

Reinforced polytetrafluoroethylene

Packing

Teflon,Flexible graphite, stainless steel bellows

Gaskets

Rubber asbestos board, 1Cr18Ni9Ti, graphite wound gasket

Membrane cover

A3

Corrugated diaphragm

Nitrile rubber with reinforced polyester fabric

Spring

60Si2Mn

Valve stem, push rod

2Cr13,1Cr18Ni9Ti

bushing

2Cr13

Main technical parameters of oxygen pneumatic single seat control valve

Nominal diameterDN(mm)

Seat Diameter)

20

25

32

40

50

65

80

100

125

150

200

250

300

350

400

10

12

15

20

Rated flow coefficient KV

straight line

1.8

2.8

4.4

6.9

11

17.6

27.5

44

69

110

176

275

440

690

1100

1760



Equal percentage

1.6

2.5

4

6.3

10

16

25

40

63

100

160

250

400

630

1000

1600



Rated itinerary L(mm)

10

-

-

-

16

-

25

-

40

-

-

60

-

-

100

-



Effective area of diaphragm(cm2)

280

-

-

-

-

-

400

-

600

-

-

1000

-

-

1600

-

-

-

Signal range Pr)

20~100,40~200、80~240 Section of the picture: 20~60、60-100

Air pressurePs(

0.14~0.4

Natural flow characteristic

Line, equal percentage

Inherently adjustable ratio R

50: 1

Allowable leakage

Hard seal: Ⅳ level, soft seal: Ⅵ level

Nominal pressurePN

1.6、4.0、6.4

Medium temperaturet(℃)

Normal temperature type

-20~220、-40~250、-60~250

Heat dissipation type

-40~450、-60~450

High temperature type

450~560

Low temperature type

-60~100、-100~-200、-200~-250

                                         

Dimensions of oxygen pneumatic single seat control valve

Nominal diameterDN

20

25

32

40

50

65

80

100

125

150

200

250

300

350

400

L

PN16

185

200

205

222

250

276

298

350

410

451

600

670

735

-

-

PN40

190

205

210

230

255

285

310

355

425

460

615

685

750

-

-

PN64

200

210

220

251

286

311

337

394

440

475

630

700

765

-

-

H1

Normal temperature型

PN16

487

493

524

524

538

686

706

726

969

696

1009

1353

1390

-

-

PN40

487

493

524

524

538

686

706

733

979

979

1029

1373

1415

-

-

PN64

487

503

534

534

546

696

713

743

999

999

1044

1385

1425

-

-

Medium temperature type

Standard addition plus200

Standard addition plus250

Standard addition plus320

Standard addition plus350

-

H2

PN16

53

58

68

73

80

90

98

108

123

140

168

203

230

-

-

PN40

53

58

68

73

80

90

98

115

135

150

188

223

255

-

-

PN64

63

68

75

83

88

100

105

125

148

170

203

235

265

-

-

A

282

360

470

620

-

Flange standard

GB: 1.6、2.5、4.0、6.4MPa ANSL: 150、300、600Lb JLS:10K、20K、30K