Water distributor is a water system, used to connect each heating pipe supply and return water distribution, water collection device. Floor heating, air conditioning system with a water distributor material should be brass. Supply and return water are equipped with exhaust valves, many water distributors supply and return water also has a drain valve. Each branch of the water supply manifold should be equipped with a valve to adjust the size of the water. General water distributor is mainly composed of three parts: water distributor, water collector and fixed bracket. The role of the distributor is to separate the heat source hot water into each way of the ground radiation heating laid in the tube, in order to achieve the purpose of room heating and temperature regulation.