RL4 Series Relief Valve

RL4 Series Relief Valve

RL4 Series Relief Valve

Low Pressure Proportional Relief, Color Coded Design
Pressure Rating Up to 400 psi
Temperature Rating -57°C up to 204°C
Connection Size 1/4", 6mm, 8mm
Connection Type Tube OD, NPT

Parker RL4 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. Flow through the valve increases proportionately to the increase in upstream pressure.

Pressure settings are externally adjustable while the valve is in operation. Seven different spring ranges provide greater system sensitivity and enhanced performance.

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