Operating principle of electric butterfly valve:
Inject air into the deformable sealing container, and realize the elastic effect of the butterfly valve through the compressibility of air. For example, the electric butterfly valve system of a bus is mainly composed of electric butterfly valve, height control valve, differential pressure valve and additional air chamber. During operation, compressed air enters the air reservoir of the electric butterfly valve from the main air pipe of the train, and enters the electric butterfly valve through the height control valve. When the air pressure in the butterfly valve is charged to a constant air pressure, the car body rises to the predetermined balance position.
Advantages of electric butterfly valve:
Compared with the metal butterfly valve, the electric butterfly valve has excellent elasticity, and can adjust the air pressure with the change of load, which greatly improves the comfort of the car during driving. At the same time, the electric butterfly valve can well isolate high-frequency vibration, enhance the comfort of riding, reduce noise, and increase the service life of parts. The electric butterfly valve has no lateral rigidity, so the connecting rod must be added when using the non independent suspension system, while it is placed at the position of the ring butterfly valve when using the independent suspension system.
Electric butterfly valve, also known as concrete precast hollow slab inflatable core mold, bridge inflatable core membrane, internal mold It shall be used for the pouring and forming works of highway bridge concrete pre tensioned and post tensioned beams. It is also used for culvert drainage works. The electric butterfly valve is a kind of internal mold with different shapes that can be expanded and shortened by vulcanizing the polymer and high-strength fiber cloth (it is a commodity made by vulcanizing with the fiber reinforcement layer).
The electric butterfly valve has high compressive strength, elasticity and air tightness. After the compressed air is filled, the expansion expansion reaches its section planning requirements. The inflation pressure is determined according to the manufacturer's logo. It can also extract the capsule from the cavity. It is simple in use, economical in use, soft and short when not inflated, arbitrarily folded and bent, and has enough strength to accept the pressure of concrete after inflated. It can replace the original wood mold, bamboo mold and steel mold, and can be repeatedly used. It is a kind of concrete products supporting goods that can reduce costs and accelerate construction progress.