Simmons 503sb Check Valve, 1 In., Silicon Bronze, 400 Psi

The Simmons 503SB Check Valve is a silicon bronze check valve designed to prevent backflow in residential, commercial, and industrial plumbing systems. Backflow can contaminate your water supply and compromise system integrity, making a reliable check valve essential for any plumbing installation. This lead-free valve is suitable for diverse applications from irrigation to hot water systems.

Built from high-quality silicon bronze with a robust construction, the 503SB combines durability with corrosion resistance. The valve body and poppet are cast from silicon bronze and contain less than 0.05% lead. With a 400 PSI working pressure rating and temperature tolerance up to 210°F, this check valve handles both standard and demanding plumbing conditions reliably.

Features and Benefits

• Silicon Bronze Construction: Provides excellent corrosion resistance and durability for long-lasting performance in various water conditions.
• Lead-Free Design: Body and poppet contain less than 0.05% lead for use in potable water systems.
• FPT Connections: Female pipe thread connections simplify mounting and reduce installation time compared to other connection types.
• Buna-N O-Ring Seal: High-performance elastomer delivers reliable leak prevention and maintains a secure seal under pressure.
• Complete Assembly: Furnished with stainless steel spring, washer, and locknut for durable, corrosion-resistant construction.
• Versatile Pressure and Temperature Ratings: 400 PSI working pressure and temperature rating up to 210°F make this valve suitable for hot water, irrigation, and general plumbing applications.

Specifications

• Brand: Simmons
• Model: 503SB
• Size: 1 inch
• Connection Type: FPT (female pipe thread)
• Material: Silicon bronze body and poppet
• Working Pressure: 400 PSI
• Temperature Rating: 210°F maximum
• Seal Material: Buna-N O-ring
• Additional Components: Stainless steel spring, washer, and locknut
• Lead Content: Less than 0.05%