Shanghai Yihuan fluid control equipment Co., Ltd.

Pilot-Operated Safety Relief Valve (POSRV)

Technical Data

Pilot-Operated Safety Relief Valves (POSRV)
Pilot-Operated Safety Relief Valves (POSRV)
Normal Pressure PN 150 300 600 900 1500
Body strength Ps (Mpa) 3.0 7.5 15 22.5 35
Set pressure Pk (Mpa) 0.1~2 1.6~5 3.2~10 8~15 10~25
Seal pressure Pm 90Pk
Reseating pressure Ph =90Pk
Relieving pressure Pp =1.03Pk
Lift H (mm) =1/4 do
Appropriate temperature =250°C
Appropriate medium Gas, Steam etc, Crude oil, Natural gas

Dimensions (mm)

Size Orifice Inlet Lb Outlet Lb Dimension Size Orifice Inlet Lb Outlet Lb Dimension
L L1 C L L1 C
1×2 D.E.F 150 150 115 105 406   2×3   G.H.J 150 150 124 130 457
300 150 115 105 406 300 150 124 130 457
600 150 115 105 406 600 150 124 130 457
900 300 121 125 508 900 300 171 167 559
1500 300 121 125 508 1500 300 171 167 559
2500 300 121 125 508 2500 300 171 178 584
1 1/2×2 D.E.F 150 150 121 124 432   3×4   J.K.L 150 150 162 156 483
300 150 121 124 432 300 150 162 156 483
600 150 121 124 432 600 150 162 162 483
900 300 140 149 533 900 300 181 190 610
1500 300 140 149 533 1500 300 181 190 610
2500 300 140 149 533          
1 1/2×3 G.H 150 130 124 130 457   4×6   L.M.N.P 150 150 229 181 559
300 130 124 130 457 300 150 229 181 559
600 130 124 130 457 600 150 229 181 559
900 162 171 162 559 900 300 233 249 711
1500 162 171 162 559 1500 300 233 249 711
2500 162 171 162 559 1500 600 264 249 711
 
6×8 Q.R 150 150 241 240 635   8×10   T 150 150 279 276 711
300 150 241 240 635 300 150 279 276 711
600 150 241 240 635 600 150 279 276 737