Relief Valves, 6,000 PSI - R Series - 4A-RL4A-KZT-SS-MN-KA

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).
Availability: Backordered
SKU: 4A-RL4A-KZT-SS-MN-KA
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Products specifications
Attribute nameAttribute value
Cracking Pressure10 to 25 psiMaterials of ConstructionStainless Steel 316
DivisionInstrumentation Products DivisionBack-Up Washer MaterialPTFE
Packing MaterialHighly Fluorinated Fluorocarbon RubberMaximum Operating Pressure25 psi
Connection Size1/4 inchConnection 1 SizeTwo Ferrule Compression
Flow Coefficient0.75 CvActuation TypeManual Overdrive
Connection 2 Size1/4 inchMinimum Operating Temperature-29 °C
Maximum Operating Temperature200 °F
Connection 1 StyleTwo Ferrule Compression FittingConnection Size 21/4"
Material316 Stainless SteelConnection 2 StyleTwo Ferrule Compression Fitting
Packing MaterialHighly Fluorinated Fluorocarbon RubberActuationManual Overdrive
Connection Size1/4"Cracking Pressure (psi)10 - 25
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