Midland Industries 940356B Wye-pattern Swing Check Valve 1.5in Fpt

Product Description

The MIDLAND INDUSTRIES 940356B is a wye-pattern swing check valve designed for use in fluid piping systems where backflow prevention is required. The wye-style body positions the swing disc at an angle, reducing turbulence and pressure drop compared to standard in-line check valve designs. The body is machined from brass, which provides resistance to corrosion in water and light commercial fluid service. Connections are female pipe thread (FPT) at 1-1/2 inch nominal, with a thread size of 1-1/2-11-1/2. Licensed plumbers and pipefitters are the primary installers of this valve type in both residential and commercial piping applications.

This valve is suited for installation in domestic water supply, recirculation, and general plumbing service lines where a non-return function is needed. The wye-pattern design is commonly selected for applications where minimizing flow restriction is a priority, such as boiler feed lines, pumped circulation loops, or supply headers. The 1-1/2 inch FPT connection makes it compatible with standard threaded pipe assemblies in typical mechanical room and utility installations.

Key Features

• Wye-pattern body reduces pressure drop across the valve compared to straight-through swing check designs
• Brass body construction provides corrosion resistance for water and light fluid service
• 1-1/2 inch FPT connections on both ends for standard threaded pipe assembly
• Thread size 1-1/2-11-1/2 for proper fit with NPT-threaded pipe and fittings
• Swing disc design allows low-cracking-pressure operation with minimal back pressure

Compatibility

Designed as an OEM-style replacement or new-installation swing check valve for 1-1/2 inch nominal female pipe thread assemblies in residential and commercial plumbing and mechanical piping systems.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable IPC or local plumbing codes. Shut off and depressurize the supply line and drain the system before removing any existing valve or making new connections. Apply thread sealant tape or compound to male threads before assembly and tighten to a firm, leak-free engagement without over-torquing brass fittings. Verify flow direction arrow on the valve body is oriented correctly with the intended flow path before pressurizing the system.