Midland Industries 949455 Spring Check Valve 1in Fpt 316SS

Product Description

The MIDLAND INDUSTRIES 949455 is a 1-piece spring check valve designed to allow one-directional flow and prevent backflow in piping systems handling gas, oil, or water. Built with a 316 stainless steel body and a 304 stainless steel spring, spring ring, and spool trim, this valve is rated for working pressures up to 1500 psi and temperatures from -14 to 300 degrees C. The rubber seal provides positive shutoff, and the CF8M steel cap completes a corrosion-resistant assembly suited for demanding industrial and commercial plumbing applications. Licensed plumbers and pipefitters are the primary installers for this type of valve.

This valve is suited for residential and commercial piping systems where backflow prevention is required in gas, oil, or water service lines. The FPT x FPT connection type allows direct threaded installation into standard female-ported pipe runs. The 2 to 3 psi opening pressure makes it appropriate for low-differential-pressure systems where a light cracking pressure is needed. Its compact 3.268-inch inlet-to-outlet length keeps installation space requirements manageable in tight mechanical rooms or service panels.

Key Features

• 316 stainless steel body for superior corrosion resistance in gas, oil, and water service
• Rated to 1500 psi working pressure for high-demand piping applications
• Temperature range of -14 to 300 degrees C suits a wide variety of service conditions
• 2 to 3 psi opening pressure allows reliable operation in low-differential systems
• FPT x FPT connection for straightforward threaded installation
• Rubber seal provides positive, leak-resistant shutoff

Compatibility

Designed as an OEM-style replacement or new-installation spring check valve for threaded 1-inch pipe systems carrying gas, oil, or water media.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the IPC or IFGC. Shut off and depressurize the system completely before removing any existing valve or fitting. Use appropriate thread sealant rated for the intended media when making FPT connections. Verify flow direction marking on the valve body before final installation to ensure correct one-way flow orientation.