
Structural characteristics and application of gas pressure reducing valve: This series of pressure reducing valve belongs to pilot piston pressure reducing valve. It consists of main valve and pilot valve. The main valve is mainly composed of valve seat, main valve disc, piston, spring and other parts.
Item NO.:
XUVAL77-43Lead Time:
45DaysProduct Orgin:
CHINABrand:
XUVALShipping Port:
ShanghaiPayment:
100%TTColor:
BlueMOQ:
10YK43X/F gas pressure reducing valve
Pilot valve is mainly composed of valve seat, disc, diaphragm, spring, adjusting spring and other parts. The outlet pressure is set by adjusting the spring pressure, the diaphragm is used to sense the outlet pressure change, and the pilot valve is opened and closed to drive the piston to adjust the flow area of the throttle part of the main valve, so as to realize the function of pressure reduction and stabilization. This product is mainly used in gas pipeline, such as air pressure reducing valve, nitrogen pressure reducing valve, oxygen pressure reducing valve, hydrogen pressure reducing valve, liquefied gas pressure reducing valve, natural gas and other gases.
YK43F gas pressure reducing valve (air pressure reducing valve, nitrogen pressure reducing valve, oxygen pressure reducing valve, hydrogen pressure reducing valve, liquefied gas pressure reducing valve, natural gas)
Model of gas pressure reducing valve:YK43F
Nominal diameter of gas pressure reducing valve: 15mm-500mm
Service pressure of gas pressure reducing valve: 1.6MPa-10MPa
Connection mode of gas pressure reducing valve: flange connection
Type of gas pressure reducing valve: spring type
Main function of gas pressure reducing valve: pressure reducing protection
Medium used for gas pressure reducing valve: Gas Pipeline
Material of gas pressure reducing valve: cast steel. Stainless steel
Standard of gas pressure reducing valve: standard of mechanical department or customized non-standard
Main technical parameters and performance indexes of 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
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
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 (polytetrafluoroethylene/rubber):OY(hard seal):GB12245-1989
Material of main parts of gas pressure reducing valve:
Part name
Material of parts
Valve body,bonnet,bottom cover
WCB/FCB*
Seat,disc
2Cr13/304*
Cylinder liner
2Cr13/25 (hard chromium plating)/304*
Piston
2Cr13/copper alloy/copper alloy*
Piston ring
Alloyed cast iron/para polyphenylene*
Guide valve seat and guide valve stem
2Cr13/304*
Diaphragm
1Cr18Ni9Ti
Main valve pilot valve spring
50CrVA
Adjusting spring
60Si2Mn
Gasket (X/F model)
Rubber/PTFE
Guide valve body and cover
25/304*
Flow coefficient of gas pressure reducing 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 |
Product structure chart:
Dimension of gas pressure reducing valve (PN1.6-4.0):
Nominal diameter DN
Dimensions
L
H
H1
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
Dimension of gas pressure reducing valve (PN6.4-16.0):
Nominal diameter DN
Dimensions
L
H
H1
6.4MPa
10.0/16.0MPa
15
180
180
300
100
20
180
200
310
105
25
200
220
310
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
Pressure regulating steps of pressure reducing valve:
1. Close the gate valve in front of the pressure reducing valve, open the gate valve behind the pressure reducing valve, create downstream low pressure environment, rotate the adjusting screw counterclockwise to the top position (relative to the lowest outlet pressure), and then close the gate valve behind the pressure reducing valve.
2. Slowly open the gate valve in front of the pressure reducing valve to full open.
3. Slowly turn the adjusting screw clockwise to adjust the outlet pressure to the required pressure (subject to the gauge pressure behind the valve); After adjustment, lock the lock.
4. Lock the nut and open the back gate valve of the pressure reducing valve.
5. If the outlet pressure is higher than the set pressure, it must be readjusted from the first step, that is, it can only be adjusted from low pressure to high pressure.
Packing & Delivery :
Packing Details:all by seaworthy plywood case and packed strongly by packing belt as below
Delivery Details:Generally it is 5-10 days if the goods are in stock. or15-30 days if the goods are OEM or not
enough subject to the order quantity. But anyway, normally, we are able to make sure the delivery will not exceed 45days.
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