Parker M8A-RH4A-VT-SS-K6 - 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-VT-SS-K6
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Products specifications
Attribute nameAttribute value
Connection 2 Size8 mmBack-Up Washer MaterialPTFE
Flow Coefficient0.41 CvMaximum Operating Pressure4000 psi
Materials of Construction316 Stainless SteelMaximum Operating Temperature400 °F
Connection 1 SizeTwo Ferrule Compression FittingConnection Size8 mm
Packing MaterialFluorocarbon RubberMinimum Operating Temperature-23 °C
DivisionInstrumentation Products DivisionCracking Pressure3000 - 4000 psi
Actuation TypeStandardCracking Pressure (psi)3000 - 4000
Connection Size8 mmMaterial316 Stainless Steel
Connection 1 StyleTwo Ferrule Compression FittingConnection Size 28 mm
Connection 2 StyleTwo Ferrule Compression FittingPacking MaterialFluorocarbon Rubber
ActuationStandard
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