Relief Valves, 6,000 PSI - R Series - 4Z-RL4A-EPRT-SS-MN-KE

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: 4Z-RL4A-EPRT-SS-MN-KE
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Products specifications
Attribute nameAttribute value
Materials of ConstructionStainless Steel 316Maximum Operating Pressure225 psi
Connection 2 SizeSingle Ferrule CompressionBack-Up Washer MaterialPTFE
Packing MaterialEthylene Propylene RubberMaximum Operating Temperature275 °F
Actuation TypeManual OverdriveCracking Pressure150 to 225 psi
Flow Coefficient0.75 CvConnection 1 SizeSingle Ferrule Compression
DivisionInstrumentation Products DivisionMinimum Operating Temperature-70 °F
Connection Size1/4 inch
Connection Size 21/4"Material316 Stainless Steel
Packing MaterialEthylene Propylene RubberCracking Pressure (psi)150 - 225
Connection 1 StyleSingle Ferrule Compression FittingConnection Size1/4"
ActuationManual OverdriveConnection 2 StyleSingle Ferrule Compression Fitting
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