Simple and reasonable structure, low leakage, flexible operation, good regulatory, low noise, good rigidity leaf,Corrosion resistance, easy installation, convenient operation, good appearance, variety complete, etc. It can be widely used in industrial and civil air conditioning and ventilation system, in order to achieve the purpose of precise control air volume.

Generally low leakage air volume control valve is made by the body frame, blade, blade shaft, bearing, connecting rod, rubber seals, drive and other components, which can choose manual, electric drive device.

1.Air valve application framework t acuity of no more than 2 mm thick high quality galvanized steel plate after molding machine is welded or riveted after rolling, solder joints in oil removal after coating epoxy anticorrosive paint

2.Air valve blade using t≥ 1 mm thick high quality galvanized steel after molding machine rolled into corrugated type double welding compound, with a strong rigidity and intensity, can withstand high wind velocity and static pressure.

3.Connecting rod with 45 # quality carbon structural steel materials cold drawing, galvanized or chrome plated surface processing, good corrosion resistance.

4.Leaf axis adopt 45 # high quality carbon structural steel cold drawn, galvanized or chrome plated surface processing, good corrosion resistance.Its shape is square shaft, connected to the blade is firm, no sliding phenomenon.

5.Bearing for oil bearing, using sintered bronze, ensures continuous and smooth, has a small friction torque, long service life, no maintenance, etc.

6.At the edge of the blade and the framework of the upper and lower sides have special synthetic silicone rubber seals, can ensure the blade air valve seated sealing is reliable, low leakage, usually 5% or less.According to the air valve allows the use of highest temperature of different optional synthetic rubber, with different levels of heat resistance up to 285 ℃.

7.Low leakage type air valve has a rectangular shape, round and square shape.Circular duct can be used on round or square shape of wind valve air valve, fangyuan type air valve is in rectangular air valve installed on two sides of the flange circular flange, so as to realize circular interface.Rectangular body thickness, 180, 260 square shaped body thickness.

8.Stainless steel frame, blade, blade of wind valve shaft, connecting rod are all stainless steel materials, has higher corrosion resistance.According to different degree of corrosion resistance requirements, stainless steel material can choose 304 stainless steel or 304 l stainless steel, etc.