Nibco NL92004 Y-pattern Check Valve 0.25 in 600 Wog Fnpt

Product Description

The NIBCO NL92004 is a Y-pattern check valve designed to allow one-directional flow and prevent backflow in piping systems. Built with a bronze body and a PTFE (polytetrafluoroethylene) seal, it is sized for 0.25-inch pipe and rated at 600 WOG (water, oil, gas). The Y-pattern configuration reduces pressure drop compared to swing-style designs, making it well suited for applications where flow efficiency matters. Licensed plumbers and pipefitters typically install this valve in commercial and industrial piping systems where backflow prevention is required.

This valve is appropriate for use in water, oil, and gas service lines within the 600 WOG pressure rating. The female NPT (FNPT) connections on both ends allow for straightforward threaded installation into standard pipe runs. Its compact 0.25-inch pipe size makes it a common fit for smaller-diameter branch lines, instrumentation lines, and process piping applications in both light commercial and industrial settings.

Key Features

• Y-pattern design reduces pressure drop across the valve
• 600 WOG pressure rating suitable for water, oil, and gas service
• Bronze body provides corrosion resistance in wet and fluid-service environments
• PTFE seal material offers chemical compatibility and reliable seating
• FNPT x FNPT end connections for standard threaded pipe installation
• 0.25-inch pipe size for small-diameter line applications

Compatibility

Designed as an OEM-style replacement or new-installation check valve for 0.25-inch threaded pipe systems rated for water, oil, or gas service up to 600 WOG.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes and the International Plumbing Code (IPC). Shut off and depressurize the line completely before removing any existing valve or fitting. Apply an appropriate thread sealant or PTFE tape to male threads before making up connections, and do not overtighten threaded joints in bronze fittings. Verify flow-direction arrow or body orientation before final make-up to ensure the check valve operates correctly.