Parker 520831000 4-way 2-position Valve 1/4 Inch Npt

Product Description

The PARKER 520831000 is a 4-way, 2-position mechanically operated directional control valve designed for pneumatic or hydraulic circuit control in industrial and mechanical systems. It uses a lever-manual return actuator, meaning the valve shifts when the lever is engaged and returns to its original position manually rather than by spring force. With a Cv rating of 0.830 and a working pressure range of 0 to 150 psi, this valve suits moderate-flow control applications. It features five ports and NPT threaded connections at both the 1/4 inch inlet and 1/4 inch outlet. Licensed mechanics, millwrights, and fluid power technicians are the primary installers of this type of valve.

This valve is suited for light industrial equipment, pneumatic control panels, and directional flow circuits where manual lever actuation is appropriate. Its compact port size and 2-position configuration make it a practical choice for bench-mounted machinery, test fixtures, and automation subassemblies that require direct operator-controlled flow switching. The valve operates across a temperature range of 32 degrees F to 175 degrees F, making it appropriate for standard indoor industrial environments.

Key Features

• 4-way, 2-position valve configuration with five ports for directional flow control
• Lever-manual return actuator for direct operator engagement
• 1/4 inch NPT threaded inlet and outlet for standard pipe connections
• Cv rating of 0.830 supporting moderate flow capacity
• Working pressure rated from 0 to 150 psi
• Temperature range of 32 degrees F to 175 degrees F for standard indoor service

Compatibility

Designed as an OEM-style directional control valve for pneumatic and fluid power systems requiring 4-way, 2-position manual lever actuation with 1/4 inch NPT connections.

Installation Notes

Installation should be performed by a qualified fluid power technician or licensed mechanic familiar with directional control valves. Depressurize the system completely before removing any existing valve or making connections. NPT threads require appropriate thread sealant applied per standard practice — do not over-tighten threaded fittings. Verify that system pressure and temperature do not exceed the rated limits of 150 psi and 175 degrees F before returning the circuit to service.