Parker 4KF-RL4A-NET-SS-MN-KC - 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-NET-SS-MN-KC
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Products specifications
Attribute nameAttribute value
Maximum Operating Pressure100Connection Size1/4
Connection 2 Size1/4Maximum Operating Temperature121
Materials of ConstructionStainless Steel 316DivisionInstrumentation Products Division
Minimum Operating Temperature-43Packing MaterialNeoprene Rubber
Back-Up Washer MaterialPTFEActuation TypeManual Overdrive
Flow Coefficient0.75Cracking Pressure50 to 100
Connection 1 SizeBSP FConnection Size1/4"
Material316 Stainless SteelConnection Size 21/4"
Packing MaterialNeoprene RubberCracking Pressure (psi)50 - 100
ActuationManual OverdriveConnection 1 StyleBSP F
Connection 2 StyleBSP F
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