Parker 4F-RL4A-BNT-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. 4F-RL4A-BNT-SS-MN-KC
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Products specifications
Attribute nameAttribute value
Maximum Operating Pressure100Maximum Operating Temperature107
Connection Size1/4Connection 2 Size1/4
Materials of ConstructionStainless Steel 316DivisionInstrumentation Products Division
Connection 1 SizeNPT FMinimum Operating Temperature-34
Packing MaterialNitrile RubberBack-Up Washer MaterialPTFE
Actuation TypeManual OverdriveFlow Coefficient0.75
Cracking Pressure50 to 100Connection Size1/4"
Material316 Stainless SteelConnection 1 StyleNPT F
Connection 2 StyleNPT FConnection Size 21/4"
Packing MaterialNitrile RubberCracking Pressure (psi)50 - 100
ActuationManual Overdrive
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