Piston gas pilot valve

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Piston gas pilot valve

Model: Yk43X / F / Y
Nominal diameter: DN15 ~ 500mm
Nominal pressure: PN1.6 ~ 16.0MPa
Main material: carbon steel, stainless steel
Temperature: 0 ~ 80 ℃
Operation: manual
Flange Standard: GB / T17241. 6, GB / T9113
Test standards: GB / T13927, API598
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YK43X pilot piston gas pressure regulator introduced

This series of pilot-piston gas pressure reducing valve belongs to the pilot piston type pressure reducing valve. The main valve and pilot valve composed of two parts. The main valve from the valve seat, the main valve disk, piston, spring and other components. Pilot valve mainly by the valve seat, disc, diaphragm, spring, adjusting spring and other components. By adjusting the spring pressure to set the outlet pressure, the use of diaphragm sensing outlet pressure changes, through the pilot valve opening and closing drive piston to adjust the size of the main valve throttle flow area, to achieve decompression regulator function. The pilot-style large diaphragm high sensitivity pressure reducing valve is mainly used for gas lines, such as air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas and other gases. 

 

YK43X pilot piston gas valve main technical parameters and performance indicators:

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
Seal test pressure (Mpa) 1.6 2.5 4.0 6.4 10.0 16.0 
The 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 characteristics deviation (Mpa) P2G GB12246-1989 
Minimum pressure difference (Mpa) 0.15 0.15 0.2 0.4 0.8 1.0 
Leakage X / F (polytetrafluoroethylene / rubber): OY (hard seal): GB12245-1989 

*: Shell test does not include diaphragm, top cover 


YK43X -type pilot-piston gas pressure relief valve main dimensions

DN
Dimensions
LHHl
1.6 / 2.5MPa4.0MPa
1516018029090

2016018030098

25180200300110

32200220300110

40220240320125

50250270320125

65280300325130

80310330365160

100350380365170

125400450475200

150450500475210

200500550515240

250650560290

300800705335

350850745375

400900780405

450900730455

500950835465

DNDimensions
LHHl
6.4MPa10.0 / 16.0 MPa
15180180300100
20180200310105
2520022031120
32220230310120
40240240335135
50270300335135
65300340340140
80330360380170
100380380185
125450490215
150500490225
200550535260
250650580310
300800725355
350850765395
400900800435
500950 855495