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Picture of Parker 4M-RH4A-EPRT-SS-K1 - 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 4M-RH4A-EPRT-SS-K1 - 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. 4M-RH4A-EPRT-SS-K1
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Products specifications
Attribute nameAttribute value
Maximum Operating Pressure350 psiConnection 2 Size1/4 inch
Connection Size1/4 inchMaximum Operating Temperature135 °C
Minimum Operating Temperature-57 °CMaterials of ConstructionStainless Steel 316
DivisionInstrumentation Products DivisionConnection 1 SizeNPT M
Actuation TypeStandardFlow Coefficient0.41 Cv
Packing MaterialEthylene Propylene RubberCracking Pressure50 to 350 psi
Back-Up Washer MaterialPTFEConnection Size1/4"
Material316 Stainless SteelConnection 1 StyleNPT M
Connection 2 StyleNPT MConnection Size 21/4"
ActuationStandardPacking MaterialEthylene Propylene Rubber
Cracking Pressure (psi)50 - 350
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