Simmons 1" NPT Bronze Spring Check Valve 503SB

The SIMMONS 503SB is a 1 in. inline spring check valve with FNPT x FNPT connections for general-purpose water service. It uses a spring-loaded poppet check mechanism for one-way flow applications. The valve features a bronze body with silicon bronze construction details, a bronze seat, and a Buna-N seal, and is specified for horizontal or vertical mounting positions. Key Features: 1 in. nominal valve size with 1 in. female NPT connections on both ends Inline spring design with poppet check mechanism Body material: bronze with silicon bronze construction details Check mechanism material: 304 stainless steel Spring material: 302 stainless steel Seal material: Buna-N Seat material: bronze Cracking pressure: 0.5 psi Maximum operating pressure: 400 psi Maximum steam pressure: 400 psi Maximum operating temperature: 190 degrees F Mounting orientation: horizontal or vertical Overall length: 3.63 in. Overall height: 3 5/8 in. Hex size: 1 7/8 in. Certifications/Standards: NSF 372, NSF 61 Certified, ANSI 372; California Prop 65 warning applies