SIMMONS 504SB 1-1/4" NPT Bronze Spring Check Valve

The SIMMONS 504SB check valve is an inline spring check valve for general-purpose water service. It uses a spring-loaded poppet mechanism for one-direction flow applications. This valve features a silicon bronze body with 1-1/4 in FNPT x FNPT connections, a 0.5 psi cracking pressure, and mounting in horizontal or vertical orientations.

Key Features:

• Valve type: Inline spring check valve with poppet check mechanism
• Body material: Silicon bronze body with bronze seat
• Internal components: 304 stainless steel check mechanism and 302 stainless steel spring
• Connections: 1-1/4 in FNPT x FNPT, female x female NPT ends
• Pressure rating: 400 psi maximum water pressure
• Temperature rating: 190 degrees F maximum operating temperature
• Seal material: Buna-N
• Mounting: Horizontal or vertical orientations
• Certifications/standards: NSF 372, NSF 61 Certified, ANSI 372, California Proposition 65
• Dimensions: 3.75 in overall length, 3-3/4 in overall height, 2-1/4 in hex size

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