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Picture of Parker 4KF-RL4A-VT-SS-KE - Relief Valves, 6,000 PSI - R Series

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Parker 4KF-RL4A-VT-SS-KE - Relief Valves, 6,000 PSI - R Series

Parker's R Series Relief Valves are designed such that when the upstream pressure exceeds the closing force exerted by the spring, the lower stem opens, permitting flow through the valve. Pressures range from 10 PSI (0.7 BAR) to 6,000 PSI (413.7 BAR).
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Brand Parker
Part No. 4KF-RL4A-VT-SS-KE
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Products specifications
Attribute nameAttribute value
Connection Size1/4Connection 2 Size1/4
Maximum Operating Pressure225Materials of ConstructionStainless Steel 316
DivisionInstrumentation Products DivisionMaximum Operating Temperature204
Actuation TypeStandardPacking MaterialFluorocarbon Rubber
Back-Up Washer MaterialPTFEFlow Coefficient0.75
Cracking Pressure150 to 225Minimum Operating Temperature-23
Connection 1 SizeBSP FConnection Size1/4"
Material316 Stainless SteelConnection Size 21/4"
ActuationStandardPacking MaterialFluorocarbon Rubber
Cracking Pressure (psi)150 - 225Connection 1 StyleBSP F
Connection 2 StyleBSP F
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