Pro-source 4926801813PRO Check Valve 1/4 Inch Fnpt

Product Description

The PRO-SOURCE 4926801813PRO is a compact inline check valve designed to allow flow in one direction and prevent backflow in fluid and pneumatic systems. Built with an aluminum body, this valve is sized for 0.25-inch pipe with female NPT connections on both ends. At just 0.05 pounds, it is suited for light-duty installations where a small, reliable check valve is needed. A minimum operating pressure of 4 psi is required to open the valve. Plumbers, pipefitters, and HVAC technicians commonly install this type of component in compressed air lines, fluid transfer systems, and similar low-volume piping circuits.

This check valve is intended for inline installation in 0.25-inch pipe systems using standard NPT threaded connections. Its compact dimensions make it a practical choice for tight spaces in residential and light commercial applications. The FNPT x FNPT end configuration threads directly into existing pipe runs without additional adapters in most standard installations.

Key Features

• Inline check valve prevents backflow in 0.25-inch pipe systems
• FNPT x FNPT end connections for direct thread-in installation
• Aluminum body construction for lightweight service
• Minimum opening pressure of 4 psi
• Compact profile at 1.97 inches long and 0.67 inches in height and width
• Lightweight at 0.05 pounds for easy handling in confined spaces

Compatibility

Designed as an OEM-style replacement or direct-fit component for inline 0.25-inch NPT piping systems in residential and light commercial fluid or pneumatic applications.

Installation Notes

Installation is typically performed by a licensed plumber or pipefitter. Shut off and depressurize the system completely before threading in or removing any check valve. Apply appropriate thread sealant or PTFE tape to NPT threads per local plumbing code requirements. Confirm flow direction arrow or inlet and outlet orientation before making final connections.