Parker M8Z-RH4A-NET-SS-K3 - 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. M8Z-RH4A-NET-SS-K3
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Products specifications
Attribute nameAttribute value
Connection 1 SizeSingle Ferrule Compression FittingConnection Size8 mm
DivisionInstrumentation Products DivisionActuation TypeStandard
Connection 2 Size8 mmPacking MaterialNeoprene Rubber
Minimum Operating Temperature-43Maximum Operating Pressure1500
Maximum Operating Temperature121Flow Coefficient0.41
Cracking Pressure750 - 1500Back-Up Washer MaterialPTFE
Materials of Construction316 Stainless SteelActuationStandard
Connection 1 StyleSingle Ferrule Compression FittingConnection 2 StyleSingle Ferrule Compression Fitting
Connection Size 28 mmConnection Size8 mm
Cracking Pressure (psi)750 - 1500Material316 Stainless Steel
Packing MaterialNeoprene Rubber
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