Campbell 1" FNPT Lead Free Brass Spring Check Valve 4031E

CAMPBELL 4031E is a 1 in. inline spring check valve with FNPT x FNPT connections for water service applications compatible with the product specifications. It uses a spring-loaded poppet intended to allow one-way flow and close when flow stops or reverses, and is intended to reduce reverse flow in piping systems. The lead-free brass body, 0.5 psi cracking pressure, and horizontal or vertical mounting options allow installation in horizontal or vertical orientations. Key Features: Valve type: Spring check valve with inline body style and single-flow design Size and connections: 1 in. female NPT inlet x 1 in. female NPT outlet Body material: Lead-free brass Check mechanism: Poppet with 302 stainless steel mechanism and 302 stainless steel spring Seal and seat materials: Buna-N/Nitrile seal with bronze seat Flow rating: 18 gpm with Cv of 15 Cracking pressure: 0.5 psi Pressure and temperature ratings: 400 psi maximum pressure; 35 degrees F minimum operating temperature; 180 degrees F maximum operating temperature Mounting orientation: Horizontal or vertical Standards: NSF 61, ANSI B1.20.1 Overall dimensions: 3.5 in. length x 1-3/4 in. height x 1-3/4 in. width