Parker 4F-RL4A-BNT-SS-MN-KA - 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-KA
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Products specifications
Attribute nameAttribute value
Maximum Operating Pressure25 psiMaximum Operating Temperature107 °C
Connection 2 Size1/4 inchConnection Size1/4 inch
Minimum Operating Temperature-34 °CMaterials of ConstructionStainless Steel 316
DivisionInstrumentation Products DivisionConnection 1 SizeNPT F
Flow Coefficient0.75 CvPacking MaterialNitrile Rubber
Cracking Pressure10 to 25 psiBack-Up Washer MaterialPTFE
Actuation TypeManual OverdriveConnection Size1/4"
Material316 Stainless SteelConnection 1 StyleNPT F
Connection 2 StyleNPT FConnection Size 21/4"
Packing MaterialNitrile RubberCracking Pressure (psi)10 - 25
ActuationManual Overdrive
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