Parker 520711000 4-way 2-position Valve Pedal-spring

Product Description

The PARKER 520711000 is a 4-way, 2-position mechanically operated directional control valve designed for pneumatic circuit applications. Actuated by a pedal with spring return, it shifts position when the pedal is depressed and automatically returns when released. The valve features a Cv rating of 0.83 and handles working pressures from 0 to 150 psi. With a 5-port configuration and 1/4 inch NPT inlet and outlet connections, it is built for reliable directional control in industrial and manufacturing environments. Licensed pneumatic system technicians and maintenance mechanics are the typical installers of this component.

This valve is suited for applications where foot-operated control of pneumatic actuators or cylinders is required, freeing the operator's hands during the work cycle. It fits into stationary pneumatic circuits found in light industrial machinery, assembly equipment, and production line tooling. The 1/4 inch NPT port sizing is common in bench-top and small-bore pneumatic systems operating at shop air pressures up to 150 psi. Its spring-return mechanism ensures the valve defaults to its original position when foot pressure is removed, providing a built-in fail-to-default behavior appropriate for safety-conscious installations.

Key Features

• 4-way, 2-position directional control valve with 5-port configuration
• Pedal actuator with spring return for hands-free, foot-operated control
• Cv rating of 0.83 for consistent pneumatic flow performance
• 1/4 inch NPT inlet and outlet ports for standard shop-air piping
• Operating pressure range of 0 to 150 psi
• Temperature range of 32 to 175 degrees F for typical indoor industrial environments

Compatibility

Designed as an OEM-style replacement or new-installation directional control valve for pneumatic systems using 1/4 inch NPT connections and operating within 0 to 150 psi pressure ranges.

Installation Notes

Installation should be performed by a qualified pneumatic systems technician or industrial maintenance mechanic. Depressurize the pneumatic circuit and lock out the compressed air supply before removing or installing the valve. Ensure all NPT threads are sealed with appropriate thread sealant tape or compound rated for pneumatic service. Verify that system operating pressure and temperature remain within the valve's rated limits before returning the system to service.