Parker M8A-RL4A-BNT-SS-MN-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. M8A-RL4A-BNT-SS-MN-KB
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Products specifications
Attribute nameAttribute value
Cracking Pressure25 - 50Back-Up Washer MaterialPTFE
Materials of Construction316 Stainless SteelFlow Coefficient0.75
Connection Size8 mmConnection 1 SizeTwo Ferrule Compression Fitting
Maximum Operating Pressure52Actuation TypeManual Overdrive
DivisionInstrumentation Products DivisionMinimum Operating Temperature-34
Maximum Operating Temperature107Connection 2 Size8 mm
Packing MaterialNitrile RubberConnection 2 StyleTwo Ferrule Compression Fitting
Material316 Stainless SteelPacking MaterialNitrile Rubber
ActuationManual OverdriveCracking Pressure (psi)25 - 50
Connection Size 28 mmConnection Size8 mm
Connection 1 StyleTwo Ferrule Compression Fitting
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