Uni-Chek® swing check valves are compact, light-weight, and economical. These wafer check valves are preferred because of their compactness, ease of installation and lower initial costs when compared to traditional flanged swing checks. These key reasons make Uni-Chek a popular choice for systems designers. There are additional benefits, such as lower costs for shipping, storage and maintenance. Sizes available in 2″ (50mm) to 36″ (900mm), and pressure classes to meet ASME, BS, DIN, AS, JIS and ISO standards. A variety of materials are available including cast iron, cast carbon steel and many alloy steels.