Forged Steel Screwed Check Valve Class 800

The Forged Steel Screwed Check Valve Class 800 is an automatic non-return valve that allows flow in one direction and closes to prevent backflow whenever line pressure reverses. Closure is achieved by a swing element rather than a ball, so the valve seats under reverse pressure with no external operation required. Built in carbon, low-temperature and stainless steel grades across a Class 150 to 1500 pressure range and sizes from 1/2 inch to 24 inch, it suits a broad spread of process, pipeline and utility duties where reliable backflow protection is essential. Design, testing and face-to-face dimensions follow recognised API, ASME, BS and GOST standards.