SIMMONS 503SB 1" NPT Bronze Spring Check Valve

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

. This item has been restricted from sale in the following state(s): []