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YK43X gas valve

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YK43X gas valve

 

YK43X gas valve belonging to the pilot piston valve. The main valve and the pilot valve of two parts. The main valve by valve, the main valve plate, piston, cylinder liner, springs and other parts. Mainly by the pilot valve seat, valve, diaphragm, spring, adjusting springs and other parts. Set by adjusting the outlet pressure adjusting spring pressure, outlet pressure sensing diaphragm use change, driven by the pilot valve opening and closing the main valve piston regulator over the size of the flow restrictor parts of the area, to achieve vacuum regulator function.
YK43X gas valve is mainly used for gas piping, such as air, nitrogen, oxygen, hydrogen, liquefied petroleum gas, natural gas and other gases.
The main technical parameters

Nominal(MPa)
1.6
2.5
Shell test pressure(MPa)
2.4
3.75
Sealing test pressure(MPa)
1.6
2.5
Maximum inlet pressure(MPa)
1.6
2.5
Outlet pressure range(MPa)
0.1-1.0
0.1-1.6
Pressure characteristic deviation(MPa)
GB12246-1989
Flow characteristics deviation(MPa)
GB12246-1989
The minimum pressure(MPa)
0.15
0.15
Leakage
X/F(Poly tetrafluoroethane):0 Y(Hard Seal)  GB12245-1989

Main parts and materials

Part Name
Parts and materials
Body, bonnet, bottom
WCB/304
Seat, valve disc
2Cr13/304
Liner
304/25(Hard Chrome)
Pistons
2Cr13/ Copper Alloy
Piston Ring
Alloy cast iron
Pilot seat, the pilot rod
2Cr13/304
Diaphragm
1Cr18Ni9Ti
The main valve, the pilot valve spring
50CrVA
Adjusting spring
60Si2Mn
 Gasket (X/FModel)
Rubber / poly tetrafluoroethane
Pilot valve, pilot valve cover
25/304

Flow Coefficient Cv

DN
15
20
25
32
40
50
65
80
100
125
150
Cv
1
2.5
4
6.5
9
16
25
36
64
100
140

The main dimensions

DN
Dimensions
Connection Size
DN
L
H
H1
1.6MPa
2.5MPa
4.0MPa
6.4MPa
D
D1
Z-d
D
D1
Z-d
D
D1
Z-d
D
D1
Z-d
15
140
285
85
95
65
4-12
95
65
4-14
95
65
4-14
105
75
4-14
20
160
285
85
105
75
4-12
105
75
4-14
105
75
4-14
125
90
4-18
25
180
290
100
115
85
4-12
115
85
4-14
115
85
4-14
135
100
4-18
32
200
290
105
140
100
4-18
135
100
4-18
135
100
4-18
150
110
4-23
40
220
310
110
150
110
4-18
145
110
4-18
145
110
4-18
165
125
4-23
50
250
310
110
165
125
4-18
160
125
4-18
160
125
4-18
175
135
4-23
65
280
310
115
185
145
4-18
180
145
8-18
180
145
8-18
200
160
8-23
80
310
340
155
200
160
8-18
195
160
8-18
195
160
8-18
210
170
8-23
100
350
340
155
220
180
8-18
235
190
8-23
230
190
8-23
250
200
8-25
125
400
375
190
250
210
8-18
270
220
8-25
270
220
8-25
295
240
8-30
150
450
375
200
285
240
8-23
300
250
8-25
300
250
8-25
340
280
8-34
200
550
475
225
340
295
12-23
360
310
12-25
375
320
12-30
405
345
12-34
250
650
535
290
405
355
12-25
425
370
12-30
445
385
12-34
470
400
12-41
300
800
595
320
460
410
12-25
485
430
16-30
510
450
16-34
530
460
16-41
350
900
650
355
520
460
16-25
550
490
16-34
570
510
16-34
595
525
16-41
400
1000
700
395
580
525
16-30
610
550
16-34
655
585
16-41
670
585
16-48

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