Flowmax check valves, also known as non-return valves, feature a simple yet effective design that prevents the backflow of line media including gases, liquids, & more. Reduced space just 6 % as that of conventional valve. Light Weight High Resistance. Mininum Presssure Loss. High CV Valves. Eliminating use of gasket between flanges Low price. Wafer Design Dual plate Read more Wafer Design Swing Plate Check Valve. Read more