Nibco NL7500C Check Valve 1-1/2 in Y-pattern Fnpt 200 Psi

Product Description

The NIBCO NL7500C is a Y-pattern check valve designed to prevent backflow in piping systems handling liquids under pressure. Built with a bronze body and a nitrile butadiene rubber (NBR) seal, this valve is rated for 200 psi working pressure (WOG) and fits 1-1/2 inch pipe with female NPT connections on both ends. The Y-pattern configuration reduces turbulence and pressure drop compared to swing-type designs, making it well suited for systems where flow efficiency matters. Plumbers and pipefitters install this valve as part of new construction or retrofit projects in commercial and residential plumbing systems.

The NL7500C is used in water supply, general liquid service, and mechanical piping systems where backflow prevention is required. The FNPT x FNPT end connections allow straightforward inline installation with standard threaded pipe. It is appropriate for residential and light commercial applications and is commonly installed in boiler systems, pump discharge lines, and domestic water distribution piping where a compact, reliable check valve is needed.

Key Features

• Y-pattern body reduces pressure drop and turbulence in the flow path
• Bronze body construction provides corrosion resistance in water and general liquid service
• Nitrile butadiene rubber (NBR) seal offers reliable shutoff against backflow
• 200 psi maximum working pressure (WOG) rating suits a wide range of plumbing applications
• FNPT x FNPT end connections for standard threaded pipe installation
• Manufactured under ISO 9001:2008 quality management standards

Compatibility

Designed as an OEM-style replacement or new-installation check valve for 1-1/2 inch threaded piping systems in residential and commercial plumbing and mechanical applications.

Installation Notes

Installation is performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and relieve system pressure before beginning work. Use thread sealant tape or pipe joint compound rated for the service fluid on all threaded connections. Verify that the flow-direction arrow on the valve body is oriented correctly in the direction of intended flow before completing the installation.