This 11/2 inch BSP internal thread horizontal swing check valve is manufactured from SS304 stainless steel, offering durable corrosion resistance and reliable performance in piping systems. Designed to allow fluid flow in one direction and prevent backflow, it helps protect pumps, valves, and downstream equipment from reverse flow. Key benefits Prevents backflow: Oneway flow protection keeps downstream equipment safe from reverse pressure and contamination. Durable construction: SS304 stainless steel body provides corrosion resistance and long service life in a variety of applications. Easy installation: BSP internal thread connections are compatible with standard 11/2 inch BSP fittings for straightforward inline mounting. Horizontal inline design: Optimized for easy integration into inline piping runs in horizontal installations. Lowmaintenance operation: Swing check mechanism provides simple, reliable oneway operation with minimal parts subject to wear. Key attributes Size: 11/2 inch nominal Connection type: BSP internal thread (female) Orientation: Horizontal inline installation Material: SS304 stainless steel Type: Swing check valve Quantity: 1 piece per unit How it works The valve allows flow in the forward direction and uses a swinging disc to seal against the valve seat when flow reverses, preventing backflow and protecting the system. Applications and use cases Water supply and pumping systems: Protect pumps and downstream piping from reverse flow in commercial or residential installations. Pump discharge lines in HVAC, irrigation, and general piping: Provide backflow protection where a pump or other equipment feeds a downstream line. General inline piping with BSP 11/2 inch connections: Suitable for commercial or lightindustrial systems that require a durable stainless steel, internally threaded check valve. Notes For use with standard BSP fittings, ensuring proper threading compatibility and a secure seal in horizontal configurations. Constructed from SS304 stainless steel to meet noncorrosive service expectations and provide dependable performance in typical piping environments.