Parker HVN4200-8 4-way 3-position Air Valve 0.25 Inch Npt

Product Description

The PARKER HVN4200-8 is a manually operated 4-way, 3-position pneumatic air valve designed for directional control of compressed air circuits. It uses a rotary lever actuator with detent positioning, meaning the lever holds its selected position without requiring continuous operator force. The valve features a 0.25 inch NPT outlet and a Cv rating of 0.5, making it suited for low-to-moderate flow pneumatic applications. Licensed pneumatic system technicians and industrial maintenance professionals install this valve in machinery, automation panels, and fluid power circuits where manual directional switching is required.

This valve fits into pneumatic control systems where a compact, manually actuated 4-way directional control device is needed. Typical applications include cylinder actuation circuits, air tool switching, and machine control manifolds in industrial and light commercial environments. The 3-position configuration allows for additional circuit states such as an exhaust or blocked center condition. The detent mechanism ensures operator selections remain stable through machine vibration and normal operational movement without requiring a spring return.

Key Features

• 4-way, 3-position directional control for versatile pneumatic circuit configurations
• Rotary lever actuator with detent hold — maintains position without continuous operator input
• 0.25 inch NPT outlet connection for standard pneumatic plumbing
• Cv rating of 0.5 for controlled low-to-moderate compressed air flow
• Minimum working temperature of 32 degrees F for standard indoor industrial environments
• Compact manual valve suitable for panel-mount or inline pneumatic circuit installation

Compatibility

Designed as an OEM-style directional control valve for pneumatic systems using 0.25 inch NPT ported connections and requiring a manually actuated 4-way, 3-position rotary lever valve.

Installation Notes

Installation should be performed by a qualified pneumatic or fluid power technician. Depressurize and lock out the compressed air supply before installing or removing this valve. Use appropriate thread sealant rated for pneumatic service on all NPT connections and avoid overtightening fittings into the valve body ports. Verify circuit function and detent operation before returning the system to service.