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Y43H Pilot piston type steam pressure reducing valve

  • Y43H Pilot piston type steam pressure reducing valve

Pilot piston type pressure reducing valve is mainly used for steam, it mainly composed of main valve and pilot valve. The main valve consists of valve seat, main valve disc, piston, cylinder sleeve, and spring.

Details

 

 

Y43H Pilot piston type steam pressure reducing valve 

Structural characteristic and purpose
This series reducing valve is pilot piston type reducing valve for steam, mainly composed of main valve and pilot valve. The main valve consists of valve seat, main valve disc, piston, cylinder sleeve, and spring. The piston valve consists of valve seat, valve flap, membrane, spring and adjusting spring. Set the outlet pressure through adjusting spring, sense the change of pressure of outlet with membrane, adjust the flow area of throttling part of main valve through open and close of pilot valve and drive the piston, to realize the function of reducing and regulating valve. The product is mainly applied on steam piping, to reduce and regulate the pressure.
 

Y43H Pilot piston type steam pressure reducing valve 

main technical parameters and indexes of performance

Product: Pilot piston type steam pressure reducing valve 
Pressure Rating: 1.6- 16.0Mpa
Specification: DN15-500
Material: Steel WCB, CF8
Standard flanges: DIN, ANSI, JIS
 

Nominal pressure
PN1.6Mpa
PN2.5Mpa
PN4.0Mpa
PN6.4Mpa
PN10.0Mpa
PN16.0Mpa
Tested pressure of shell
2.4Mpa
3.75Mpa
6.0Mpa
9.6Mpa
15.0Mpa
24.0Mpa
Sealing test pressure
1.6Mpa
2.5Mpa
4.0Mpa
6.4Mpa
10.0Mpa
16.0Mpa
Maximum upstream pressure
1.6Mpa
2.5Mpa
4.0Mpa
6.4Mpa
10.0Mpa
16.0Mpa
Pressure range of outlet
0.1-1.0Mpa
0.1-1.6Mpa
0.1-2.5Mpa
0.5-3.5Mpa
0.5-3.5Mpa
0.5-4.5Mpa
Minimum differential pressure
0.15Mpa
0.15Mpa
0.2Mpa
0.4Mpa
0.8Mpa
1.0Mpa
Medium
steam
Operating temperature
425

*the shell test does not include membrane and top cover.

Y43H Pilot piston type steam pressure reducing valve 

material of main component
 

Name of component

Material of component

Valve body, valve cover, seat cover

WCB/FCB*

Valve seat, valve disc

2Cr13/304*

Cylinder sleeve

25 (hard chrome plating)/304*

Piston

2Cr13 /copper alloy*

Piston ring

Alloy cast iron/ polyphenyl*

Pilot valve seat, pilot valve rod

2Cr13/304*

Membrane

1Cr19Ni9Ti

Spring of main valve and pilot valve

50CrVA

Adjusting valve

60Si2Mn

Y43H Pilot piston type steam pressure reducing valve 

connecting dimension

DN

external dimension

L

H

H1

1.6/2.5Mpa

4.0Mpa

15

160

180

295

90

20

160

180

330

98

25

180

200

330

110

32

200

220

330

110

40

220

240

345

125

50

250

270

345

125

65

280

300

350

130

80

310

330

385

160

100

350

380

385

170

125

400

450

400

200

150

450

500

415

210

200

500

550

475

240

250

650

525

290

300

800

580

335

350

850

620

375

400

900

660

405

450

900

730

455

500

950

750

465

DN

external dimension

L

H

H1

6.4Mpa

10.0/16.0Mpa

15

180

180

305

100

20

180

200

340

105

25

200

220

340

120

32

220

230

340

120

40

240

240

355

135

50

270

300

355

135

65

300

340

360

140

80

330

360

395

170

100

380

400

185

125

450

415

215

150

500

430

225

200

550

495

260

250

650

545

310

300

800

600

355

350

850

640

395

400

900

690

435

500

950

 

780

495
Keywords: Pilot piston type steam pressure reducing valve, pressure reducing valve, Steam pressure reducing valve
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