Product Name: CARX sewage composite exhaust valve 
 Category: exhaust valve 
 Specifications: CARX 
 Product Diameter: DN25-200mm 
 Product pressure: 1.0-2.5MPa 
 Views: 261 
 Input time: 2008-10-25 
 Page Keywords: CARX sewage composite exhaust valve 
 I. Overview 

 CARX composite exhaust valve for the cylindrical shape of the valve body, internal parts, including stainless steel float valves, levers and disc. The valve is installed in the pump outlet or the water distribution pipeline, set to exclude the air volume in the tube to increase the use of the pipeline and not the efficiency of the pump, when the tube once the negative pressure, the valve quickly inhale outside air to prevent pipeline damage due to negative pressure. Composite pipe exhaust valve for the highest point on the road or where breath, remove the gas pipe to clear the pipeline, to work, if not installed exhaust valve, the liquid flow tube caused by gas dynamic and thermal generation, the formation of short-circuit, mainly the water capacity of the pipeline, followed by the pipeline operation when power cut will stop the pump pipe negative pressure, which can cause vibration or broken pipe, exhaust (suction) valve to the air intake tube quickly to prevent pipe vibration or rupture. Its working principle is: When the pipe water injection, the valve flap in the open position, for a lot of exhaust, the air drained, the valve is filled with water, the float valve shut up and drive, stop the exhaust, when the tube When the normal delivery of water, if gathered in a small amount of air to a considerable degree of valve, valve water level dropped, this time the air discharged from the hole. When the pump stops, the air flow tube or a case of negative pressure tube, then quickly open the plug head, inhaled the air, to ensure pipeline safety. Medium temperature :0-80 ℃ main parts as follows: 

 Part Name Material 
 Body, bonnet gray iron, ductile iron, stainless steel 
 Valve carbon steel, stainless steel 
 Stem aluminum bronze, chrome stainless steel 
 Stainless steel float 

 Second, the main part materials 

 Part name Body, bonnet lever float lever frame plugs 
 Material ductile iron, cast iron stainless steel copper and aluminum bronze aluminum blue 


 Third, the main Dimensions 

 DN (mm) 25 32 50 65 80 100 150 200 
 L 280 280 360 360 400 465 537 537 
 L1 176 176 208 208 244 275 332 332 
 H 330 330 475 475 552 623 686 686