Design Features Regent Wafer Type Check Valves has distinct advantages over conventional Swing Check Valves. Stronger, Lighter and Smaller size. It weights about 18yh weight of conventional valve. Structurally Sound Hydraulically Engineered. Flexible Installation Can be installed in horizontal or in vertical line without any special pipe support. The light weight and short face-to-face dimension of valve makes it easy to install between standard gaskets and line flanges.