Engineered to prevent backflow and protect pumps, equipment, and process lines across chemical processing, oil and gas, steam systems, water treatment, pharmaceutical, food and beverage, and general industrial service, the VSC Series is a compact in-line spring check valve available in 1/2″–3″ sizes with investment-cast CF8M stainless bodies, 316 stainless internals, and PTFE or TFM1600 seats for compatibility with chemicals, steam, and a wide range of media. Its low-cracking-pressure design with optional Inconel spring opens quickly under forward flow and closes positively against reverse flow, while threaded FNPT ends and a short face-to-face make installation simple in tight piping runs. Rated to 800 psi (1/2″–2″) and 600 psi (2½”–3″), built to ANSI B1.20.1 and ISO 9001 standards, and 100% air-tested under water at 80 psi, the VSC Series is the reliable, install-and-forget backflow protection your system needs.