CARX Shimizu composite exhaust valve CARX composite exhaust valve of the valve body is in the barrel-shaped, stainless steel float valve comprises a lever and valve. The valve installed in the pump outlet or water distribution pipeline, to exclude the accumulated air in the tube to increase the pipeline and not pump efficiency, when the inner tube when a negative pressure, the valve quickly sucked outside air, in order to prevent damage due to the negative pressure line. Composite exhaust valve to the highest point of the pipeline or have breath in place, remove the gas pipe to clear the pipeline, to work, if not installed exhaust valve, pipe flow of liquid to create dynamic thermal cause gas, a short circuit, mainly the capacity to make water pipes, and secondly, power outages, shut down the pipeline in the negative pressure when the pipeline operation, which can cause vibration or broken pipes, exhaust (suction) valve quickly put in the air intake pipe to prevent pipe vibration or rupture. Its working principle is: when the inner tube water injection, the valve is in the open position, extensive venting, when the air is drained, filled with water inside the valve, the float rises and drive the valve closed to stop the exhaust, when the tube When the water normal delivery, if a small amount of air accumulated in the valve to a considerable degree, water level dropped valve, when the air is discharged from the hole. When the pump stops, generating a negative pressure in the water pipe or a case of empty inner tube, then quickly turned plugs, intake air, to ensure pipeline safety. Medium temperature: 0-80 ℃ main parts as follows: Part Name Material Body, bonnet gray cast iron, ductile iron, stainless steel, valve steel, stainless steel stem aluminum bronze, chrome stainless steel float