The York WK51305 is a genuine brass spring-loaded foot valve designed for reliable flow control in industrial pumping systems. Featuring a 1-inch BSPF (British Standard Pipe Female) threaded connection, this robust valve prevents backflow and maintains pump prime by keeping the suction line full. Its durable brass body, stainless steel spring, and nitrile seal ensure longevity and resistance to corrosion, making it ideal for water, oil, and other non-aggressive fluids in various industrial machinery and pumping setups. With a maximum operating pressure of 16 bar and a temperature range of -10°C to +100°C, it provides efficient and long-lasting performance.