C.R.I. energy efficient frictionless Foot Valves and Reflux Valves are basically swing type Non Return Valves. Foot Valves are available in screwed type construction and Reflux Valves have threaded portions at both the ends. They are specially designed to give an unrestricted smooth flow of water and thus to reduce the frictional losses to a minimum. The C.R.I. frictionless Foot Valve has ‘K’ value less than 0.8 and ‘K’ value for Reflux Valves are less than 0.5. Thereby it reduces additional load on prime mover and also gives more discharge.