Model No.: SJ-PRV-11 Hits: 41
High pressure reducing valve is for high pressure medium design , the max. pressure is PN16 Mpa,900LB,if higher pressure for Stainless steel high pressure reducing valve ,need consult our engineer. Stainless steel high pressure reducing valve belongs to pilot piston type pressure reducing valve.Stainless steel high pressure reducing valve is composed of main valve and pilot valve.Main valve consists of seat, disc, piston, spring and other components.The guide valve mainly consists of seat, disc, diaphragm, spring, adjusting spring and other parts.The outlet pressure is set by adjusting the spring ,which is transfer the outlet pressure changes according to the diaphragm sensor, and the piston is driven through the opening and closing of the guide valve to adjust the flow area of the main valve throttling position, so as to realize the pressure reducing and pressure stabilizing function.
Stainless steel high pressure reducing valve is mainly used for gas pipeline, such as air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas and other gases.
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 | |||||
Max. 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 | 0.5-35 | 0.5-45 | |||||
Pressure characteristic deviation(MPa)△P2P | GB12246-1989 | ||||||||||
Flow characteristic deviation(MPa)△P2G | GB12246-1989 | ||||||||||
Max. Pressure difference(MPa) | 0.15 | 0.15 | 0.2 | 0.4 | 0.8 | 1.0 | |||||
Leakage Level | GB12245-1989 (Soft seat is zero leakage) |
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 |
Part Name | Material |
Body/Bonnet/End bonnet | WCB/CF8/CF8M |
Seat | 2Cr13/304/316 |
Cylinder sleeve | 2Cr13 |
Piston | 2Cr13/Copper |
Piston ring | Cast iron/stainless steel |
Guide valve seat / stem | 2Cr13 |
Diaphragm | 1Cr18Ni9Ti |
Main valve spring | 1Cr18Ni9Ti |
Guide valve sprig | 50CrVA |
Regulating spring | 60Si12Mn |
DN | Outline dimension (PN1.6-4.0Mpa) Unit(mm) | |||
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 | Outline dimension (PN6.4-16Mpa) Unit(mm) | |||
L | H | Hl | ||
6.4MPa | 10.0/16.0MPa | |||
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 |