| Items |
 HP532B-2M High Pressure Popoff Relief Valves |
 HP532B-2MP High Pressure Inline Relief Valves |
 HP532B-4M High Pressure Popoff Relief Valves |
 HP532B-4MP High Pressure Inline Relief Valves |
HP559B-2M High Pressure Popoff Relief Valves |
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| Series | HP500 | |||||||||
| Type | Relief Valve | |||||||||
| Body Material | Brass | |||||||||
| O-Ring Material | Viton® | Viton® | Viton® | Viton® | Buna N | |||||
| Valve Size | 1/4 in | 1/4 in | 1/2 in | 1/2 in | 1/4 in | |||||
| End Connections (Inlet/Outlet) | Popoff male pipe | Inline male pipe by female pipe | Popoff male pipe | Inline male pipe by female pipe | Popoff male pipe | |||||
| Operating Pressure | 150 to 575 psig10 to 40 bar | 150 to 575 psig10 to 40 bar | 150 to 450 psig10 to 31 bar | 150 to 450 psig10 to 31 bar | 150 to 575 psig10 to 40 bar | |||||
| Cracking Pressure Tolerance | ±5% | |||||||||
| Operating Temperature | -20 to 400 ºF | -20 to 400 ºF | -20 to 400 ºF | -20 to 400 ºF | -65 to 275 ºF | |||||
| Spring Material | 17-7 PH Stainless Steel | |||||||||
| Dim. A | 1.17 in | 1.92 in | 1.91 in | 2.63 in | 1.17 in | |||||
| Hex | 5/8 in | 3/4 in | 1 in | 1.125 in | 5/8 in | |||||
| Weight | .06 lbs | .16 lbs | .27 lbs | .6 lbs | .06 lbs | |||||
| Optional Body Material | 316 Stainless Steel Brass | |||||||||
| Optional End Connections | 1/4" Male BSPT x 1/4" Female BSPT M - Male NPT | |||||||||
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