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Picture of Parker 4Z-RL4A-KZT-SS-KB - 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 4Z-RL4A-KZT-SS-KB - 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. 4Z-RL4A-KZT-SS-KB
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Products specifications
Attribute nameAttribute value
Maximum Operating Temperature200 °FConnection 2 Size1/4 inch
Connection Size1/4 inchMinimum Operating Temperature-29 °C
Materials of ConstructionStainless Steel 316DivisionInstrumentation Products Division
Connection 1 SizeSingle Ferrule CompressionActuation TypeStandard
Flow Coefficient0.75 CvPacking MaterialHighly Fluorinated Fluorocarbon Rubber
Cracking Pressure25 to 50 psiBack-Up Washer MaterialPTFE
Maximum Operating Pressure54 psiConnection Size1/4"
Material316 Stainless SteelConnection 1 StyleSingle Ferrule Compression Fitting
Connection 2 StyleSingle Ferrule Compression FittingConnection Size 21/4"
ActuationStandardPacking MaterialHighly Fluorinated Fluorocarbon Rubber
Cracking Pressure (psi)25 - 50
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