Parker M8A-RH4A-BNT-SS-K4 - 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. M8A-RH4A-BNT-SS-K4
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Products specifications
Attribute nameAttribute value
DivisionInstrumentation Products DivisionCracking Pressure1500 - 2250
Connection 1 SizeTwo Ferrule Compression FittingPacking MaterialNitrile Rubber
Maximum Operating Pressure2250Maximum Operating Temperature107
Minimum Operating Temperature-34Actuation TypeStandard
Materials of Construction316 Stainless SteelFlow Coefficient0.41
Back-Up Washer MaterialPTFEConnection 2 Size8 mm
Connection Size8 mmConnection Size 28 mm
Connection 1 StyleTwo Ferrule Compression FittingPacking MaterialNitrile Rubber
Connection 2 StyleTwo Ferrule Compression FittingConnection Size8 mm
Material316 Stainless SteelActuationStandard
Cracking Pressure (psi)1500 - 2250
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