Legris 7994 04 20 In-line Check Valve Npt 5/32 in

Product Description

The LEGRIS 7994 04 20 is an in-line check valve designed for use in compressed air and pneumatic fluid line applications. Constructed from a nylon body, this valve allows flow in one direction only, preventing backflow in the line. It features an NPT connection with a Tube OD x UNF end connection, making it compatible with 5/32-inch outside-diameter tubing. The valve operates safely up to 158 degrees F (70 degrees C) and has a minimum operating temperature of 32 degrees F (0 degrees C). Licensed pneumatic system technicians and industrial maintenance professionals typically source and install this type of fitting.

This valve is suited for small-bore pneumatic tubing installations in both light industrial and instrumentation environments. The 10-32 UNF threaded port and 5/32-inch tube OD connection size targets compact manifold and instrument panel assemblies where space is limited and reliable one-way flow control is required. The nylon body keeps weight minimal at 0.01 pounds, making it appropriate for lightweight plumbing runs and modular pneumatic circuit builds.

Key Features

• In-line check valve design prevents backflow in pneumatic and fluid lines
• Nylon body construction for lightweight, corrosion-resistant performance
• NPT connection with Tube OD x UNF end for 5/32-inch OD tubing
• Maximum operating temperature of 158 degrees F (70 degrees C)
• Compact form factor suitable for instrument panels and modular pneumatic assemblies
• Black color for easy visual identification in mixed-fitting installations

Compatibility

Designed as an OEM-style replacement or direct-fit component for pneumatic systems using 5/32-inch OD tubing with 10-32 UNF threaded port connections.

Installation Notes

Installation should be performed by a qualified pneumatic or instrumentation technician. Depressurize and lock out the pneumatic circuit completely before removing or installing any check valve. Use appropriate thread sealant rated for the fluid medium on NPT threads; do not overtighten nylon-body fittings as the body can crack under excessive torque. Verify flow-direction arrow orientation before tightening to ensure the valve is installed in the correct direction of intended flow.