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YK13X-16C cast steel internal thread pilot piston type gas valve air valve DN251 inch

price:USD$1400.00
discount 70% in 2018-09-24 to 2018-09-26
price: USD$ 980.00
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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YK43X/F type gas valve structure and use

 

This series of pressure reducing valve belongs to the pilot piston valve. The two part is composed of the main valve and pilot valve. Mainly by the main valve seat, the main valve plate, piston, springs and other parts.

Mainly by the pilot valve seat, valve, diaphragm, spring, adjusting springs and other parts. Adjusting the spring pressure by adjusting the outlet pressure setting, the use of diaphragm pressure sensor

Force changes, through the pilot valve opening and closing the main valve piston adjusting throttle flow area the size of the site, to achieve decompression function.
This product is mainly used for gas pipelines, such as air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas and other gas.

The main technical parameters of YK43X/F type gas valve and performance index

 

Nominal pressure (Mpa)

1.6

2.5

4.0

6.4

10.0

16.0

Shell test pressure (Mpa) *

2.4

3.75

6.0

9.6

15.0

24

Seal test pressure (Mpa)

1.6

2.5

4.0

6.4

10.0

16.0

The maximum inlet pressure (Mpa)

1.6

2.5

4.0

6.4

10.0

16.0

The outlet pressure range (Mpa)

0.1-1.0

0.1-1.6

0.1-2.5

0.5-3.5

0.5-3.5

0.5-4.5

The pressure characteristic deviation (Mpa) P2P

GB12246-1989

Flow characteristic deviation (Mpa) P2G

GB12246-1989

The minimum differential pressure (Mpa)

0.15

0.15

0.2

0.4

0.8

1.0

Leakage

X/F (PTFE / rubber):OY (seal):GB12245-1989

 

*: shell test does not include a diaphragm, top cover

 

 

YK43X/F type gas valve main parts material

 

Part name

Parts and materials

The valve body valve cover Gaidi

WCB/FCB*

The valve seat valve disc

2Cr13/304*

Cylinder liner

2Cr13/25 (hard chromium plating) /304*

piston

2Cr13/ copper alloy / Cu alloy *

Piston ring

Alloy cast iron / Polyparaphenylene *

The pilot valve stem guide

2Cr13/304*

diaphragm

1Cr18Ni9Ti

The main valve pilot valve spring

50CrVA

Adjusting spring

60Si2Mn

The sealing pad (X/F model)

Rubber / PTFE

The guide valve guide valve cover

25/304*

 

*: medium material for oxygen

 

 

The flow coefficient of YK43X/F type gas valve (Cv)

 

DN

15

20

25

32

40

50

65

80

100

125

150

200

250

300

350

400

500

Cv

1

2.5

4

6.5

9

16

25

36

64

100

140

250

400

570

780

1020

1500

 

 

 

YK43X/F type gas valve dimensions (unit: PN1.6-4.0 mm

 

 

Nominal diameter DN

Size

L

H

Hl

1.6/2.5MPa

4.0MPa

15

160

180

290

90

20

160

180

300

98

25

180

200

300

110

32

200

220

300

110

40

220

240

320

125

50

250

270

320

125

65

280

300

325

130

80

310

330

365

160

100

350

380

365

170

125

400

450

475

200

150

450

500

475

210

200

500

550

515

240

250

650

560

290

300

800

705

335

350

850

745

375

400

900

780

405

450

900

730

455

500

950

835

465

 

 

 

YK43X/F type gas valve dimensions (PN6.4-16.0): mm

 

 

Nominal diameter DN

Size

L

H

Hl

6.4MPa

10.0/16.0MPa

15

180

180

300

100

20

180

200

310

105

25

200

220

31

120

32

220

230

310

120

40

240

240

335

135

50

270

300

335

135

65

300

340

340

140

80

330

360

380

170

100

380

380

185

125

450

490

215

150

500

490

225

200

550

535

260

250

650

580

310

300

800

725

355

350

850

765

395

400

900

800

435

500

950

 

855

495

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