Parker 4A-RL4A-NET-SS-MN-KG - 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. 4A-RL4A-NET-SS-MN-KG
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Products specifications
Attribute nameAttribute value
Connection Size1/4Connection 2 Size1/4
Maximum Operating Temperature121Materials of ConstructionStainless Steel 316
Maximum Operating Pressure400DivisionInstrumentation Products Division
Connection 1 SizeTwo Ferrule CompressionMinimum Operating Temperature-43
Packing MaterialNeoprene RubberBack-Up Washer MaterialPTFE
Actuation TypeManual OverdriveFlow Coefficient0.75
Cracking Pressure225 to 400Connection Size1/4"
Material316 Stainless SteelConnection 1 StyleTwo Ferrule Compression Fitting
Connection 2 StyleTwo Ferrule Compression FittingConnection Size 21/4"
Packing MaterialNeoprene RubberActuationManual Overdrive
Cracking Pressure (psi)225 - 400
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