Mueller Steam Specialty 4" Cast Iron Wafer Double Disc Check Valve 4 71AHB3H

This Mueller Steam Specialty 4 in cast iron wafer double disc check valve is a non-return valve for process piping. It is intended for single-direction flow and is configured to close when flow reverses. The valve features an inline wafer body design compatible with ANSI flanges, a double disc check mechanism, Buna-N seal and seat materials, and a 316 stainless steel spring. Mounting orientation: horizontal or vertical, including vertical up flow. Key Features: 4 in nominal valve and pipe size Cast iron body and cast iron check mechanism Flanged wafer x flanged wafer connection; compatible with ANSI flanges ANSI Flange Class: Class 125 Double disc check mechanism with single flow design Maximum operating pressure: 200 psi Maximum water pressure: 200 psi at 150 degrees F Maximum pressure rating: 200 psi at -20 degrees F to 150 degrees F; 150 psi at 353 degrees F Operating temperature range: -20 degrees F to 100 degrees F Seal and seat material: Buna-N Spring material: 316 stainless steel Mounting orientation: horizontal, vertical, including vertical up flow Overall dimensions: 6 7/8 in L x 2 1/2 in W x 6 7/8 in H Standards: ANSI, API, FM, UL