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Picture of Parker 4F-RL4A-BNT-SS-KC - Relief Valves, 6,000 PSI - R Series

*PRODUCT IMAGE IS REPRESENTATIVE PROVIDED BY THE MANUFACTURER. DO NOT MAKE BUYING DECISIONS SOLEY BASED ON THE IMAGE. PLEASE VERIFY SPECIFICATIONS MEET YOUR REQUIREMENTS.

Parker 4F-RL4A-BNT-SS-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-KC
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Products specifications
Attribute nameAttribute value
Maximum Operating Pressure100 psiMaximum Operating Temperature225 °F
Minimum Operating Temperature-30 °FConnection Size1/4 inch
Materials of ConstructionStainless Steel 316DivisionInstrumentation Products Division
Connection 1 SizeNPT FConnection 2 SizeNPT F
Actuation TypeStandardFlow Coefficient0.75 Cv
Packing MaterialNitrile RubberCracking Pressure50 to 100 psi
Back-Up Washer MaterialPTFEConnection Size1/4"
Material316 Stainless SteelConnection 1 StyleNPT F
Connection 2 StyleNPT FConnection Size 21/4"
ActuationStandardPacking MaterialNitrile Rubber
Cracking Pressure (psi)50 - 100
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