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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

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
L H Hl
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
DN Dimensions
L H Hl
6.4MPa 10.0 / 16.0 MPa
15 180 180 300 100
20 180 200 310 105
25 200 220 31 120
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


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