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YK13X-16C cast steel internal thread pilot piston type gas pressure reducing valve air pressure reducing valve DN2515

price:USD$1400.00
discount 70% in 2018-09-26 to 2018-09-28
price: USD$ 980.00
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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Structure characteristics and application of YK43X/F gas pressure reducing valve

 

This series of pressure reducing valves belong to the pilot piston type pressure reducing valve. It consists of two parts, the main valve and the pilot valve. The main valve is mainly composed of valve seat, main valve disc, piston, spring and other parts.

Pilot valve is mainly composed of seat, valve, diaphragm, spring, regulating springs and other components. The outlet pressure is set by adjusting the pressure of the regulating spring, and the outlet pressure is measured by diaphragm

Force change, through the pilot valve opening and closing to drive the piston to adjust the main valve throttle parts of the flow area size, to achieve decompression and voltage stabilizing function.
This product is mainly used in gas pipelines, such as air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas and other gases.

Main technical parameters and performance indexes of YK43X/F type gas pressure reducing valve

 

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

Sealing test pressure (Mpa)

1.6

2.5

4.0

6.4

10.0

16.0

Maximum inlet pressure (Mpa)

1.6

2.5

4.0

6.4

10.0

16.0

Exit 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

Pressure characteristic deviation (Mpa) P2P

GB12246-1989

Flow characteristic deviation (Mpa) P2G

GB12246-1989

Minimum pressure difference (Mpa)

0.15

0.15

0.2

0.4

0.8

1.0

Leakage volume

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

 

* shell test does not include diaphragms and covers

 

 

Main parts material of YK43X/F type gas pressure reducing valve

 

Part name

Part material

The valve body valve cover Gaidi

WCB/FCB*

Seat valve plate

2Cr13/304*

Cylinder liner

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

piston

2Cr13/ copper alloy / copper alloy *

Piston ring

Alloy cast iron / para polyphenylene *

Guide valve guide valve stem

2Cr13/304*

diaphragm

1Cr18Ni9Ti

Main valve pilot valve spring

50CrVA

Regulating spring

60Si2Mn

Gasket (X/F model)

Rubber / PTFE

Guide valve cover of guide valve body

25/304*

 

* materials for oxygen medium

 

 

Flow coefficient (Cv) of YK43X/F type gas pressure reducing valve

 

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

 

 

 

Dimensions of YK43X/F type gas pressure relief valve (PN1.6-4.0 unit: mm

 

 

Nominal diameter DN

Outline 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 gas relief valve profile size (PN6.4-16.0) unit: mm

 

 

Nominal diameter DN

Outline 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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