Parker 4F-RH4A-VT-SS-K6 - 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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Partner Available:Quote Required
Brand Parker
Part No. 4F-RH4A-VT-SS-K6
$474.85
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Products specifications
Attribute nameAttribute value
UOMEAMaximum Operating Temperature400 °F
Connection 2 Size1/4 inchConnection Size1/4 inch
Maximum Operating Pressure4000 psiMaterials of ConstructionStainless Steel 316
DivisionInstrumentation Products DivisionMinimum Operating Temperature-10 °F
Connection 1 SizeNPT FActuation TypeStandard
Flow Coefficient0.41 CvPacking MaterialFluorocarbon Rubber
Cracking Pressure3000 to 4000 psiBack-Up Washer MaterialPTFE
Connection Size1/4"Material316 Stainless Steel
Connection 1 StyleNPT FConnection 2 StyleNPT F
Connection Size 21/4"ActuationStandard
Packing MaterialFluorocarbon RubberCracking Pressure (psi)3000 - 4000
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