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Steam pressure reducing valve pilot type Y43H constant pressure valve adjustable valve DN253240506580

price:USD$1630.00
discount 70% in 2018-09-23 to 2018-09-25
price: USD$ 1141.00
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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Product model: Y43H/Y

Product Name: piston steamPressure relief valveProduct features: the main valve and guide valve composed of two parts. The main valve is mainly composed of valve seat, valve plate, piston, cylinder, spring and other parts. Pilot valve is mainly composed of seat, valve, diaphragm, spring, regulating springs and other components. By adjusting the spring pressure to set the outlet pressure, the change of outlet pressure sensing diaphragm, 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 in steam pipeline, super decompression and voltage stabilizing.

 

 Two, piston steamPressure relief valveMain technical parameters and performance indexes:

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
0.5-35
0.5-45
The 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
GB12245-1989

Shell tests do not include diaphragms and covers.

Three, piston steamPressure relief valveFlow coefficient (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


Four, piston steamPressure relief valveMaterial of main parts:

Part name
Part material
The valve body valve cover Gaidi
WCB
Seat valve plate
2Cr13
Cylinder liner
2Cr13/ copper alloy
piston
alloy cast iron
Guide valve guide valve stem
2Cr13
Main valve spring
1Cr18Ni9Ti
Main spring of pilot valve
50CrVA
Regulating spring
60Si12Mn

Five, Y43H piston steamPressure relief valveOutline size (PN1.6-4.0) unit: mm

Nominal diameter
DN
Outline size
L
H
Hl
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

Six, piston steamPressure relief valveConnection form:

Flange type: RFMFRJ
Implementation criteria: JB79GB9113ANSIB16.5

Seven, Y43H piston steamPressure relief valveOutline size (PN6.4-16.0) unit: mm

Nominal diameter
DN

Outline size

L

H

Hl

6.4MPa

10.0/16.0MPa

15

180

180

305

105

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

17

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

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