Cipriani Harrison's 70 Series Pressure Relief Valves are made from forged stainless steel and are used to control over pressurization in a process piping system. When the line pressure exceeds the limit set for the pressure relief valve , the valve plug will lift and drain out the pressure through the side port. The valve will remain open until the line pressure decreases to a value lower than the set value. Note: 3A Approved Features Adjustable spring closing force Self draining Polished body Open yoke design ensures easy cleaning of the valve plug Specifications Size: 1 - 2 in. Material: 316 Stainless Steel Other Materials: 304 Stainless Steel Surface Finish: Ra </= 23 (Grit 180g) Ends: Sanitary Clamp Seat Seal: EPDM Seal Ring: PTFE Lip Seal: PTFE Minimum Blow Off Pressure: 5 PSI (0.35 bar) Maximum Blow Off Pressure: 75 PSI (5 bar) Temperature Range: -600 F to + 300 F
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