Relief Valves, 6,000 PSI - R Series - 4F-RL4A-EPRT-SS-MN-KG

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).
Availability: Backordered
SKU: 4F-RL4A-EPRT-SS-MN-KG
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Products specifications
Attribute nameAttribute value
DivisionInstrumentation Products DivisionMaximum Operating Pressure400 psi
Back-Up Washer MaterialPTFEPacking MaterialEthylene Propylene Rubber
Connection Size1/4 inchFlow Coefficient0.75 Cv
Connection 1 SizeNPT FActuation TypeManual Overdrive
Connection 2 Size1/4 inchCracking Pressure225 to 400 psi
Minimum Operating Temperature-57 °CMaximum Operating Temperature275 °F
Materials of ConstructionStainless Steel 316
Material316 Stainless SteelConnection 1 StyleNPT F
Connection 2 StyleNPT FCracking Pressure (psi)225 - 400
Connection Size1/4"ActuationManual Overdrive
Packing MaterialEthylene Propylene RubberConnection Size 21/4"
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