Basic structure of electric butterfly valve
The electric butterfly valve is a kind of curved capsule, which is made up of and mesh wire, commonly known as pneumatic tube, corrugated pneumatic tube, electric butterfly valve, leather tiger, etc. Both ends of the capsule shall be connected with two steel plates to form a compressed air chamber. The cable itself does not provide the load bearing capacity, but is completed by the compressed air filled into the capsule.
The number of curved capsules is usually 1~3, but it can also be designed and manufactured into 4 or more curved capsules according to needs, and two electric butterfly valves can be used together under certain conditions.
The electric butterfly valve is also called air stroke regulator and air vibration isolator according to its performance and. The end structure of the existing curved bladder electric butterfly valve can be divided into three categories according to the connection mode: one is the fixed flange connection type. The edge size of both ends of the electric butterfly valve is equal to or slightly smaller than the curved bladder. The large outer diameter is equal to or slightly smaller than that of the curved bladder. After several holes are drilled, the flange ring and end plate are used for fastening connection; The other is the looper flange connection type. The size of the edges at both ends of the electric butterfly valve is much smaller than that of the large outer diameter of the curved capsule. There is no need to drill holes. Instead, a flange ring and an ordinary end plate are used to fasten the connection The third type is self sealing type, without flange connection, it is pressed into the end plate, and self sealing when filled with compressed air.
The flange sealing forms of the end and connecting plate of the electric butterfly valve are mainly JBF, GF and HF.
Main purpose of electric butterfly valve
The electric butterfly valve is mainly used in the paper machine industry for travel adjustment and tension control of correctors, calenders, presses, scrapers, nets and other parts. In addition, it is also used for all parts requiring valves, vibration isolation and travel control in automobile, train, construction, chemical industry, mechanism, installation and military industries. At present, the most important field of electric butterfly valve is vehicle suspension system, which can realize automatic adjustment of body height and keep the body height unchanged; The application of electric butterfly valve on lifting equipment. As the lifting element of lifting equipment, the electric butterfly valve overcomes the traditional shortcomings of lifting equipment, requires no maintenance, has a long service life, and is easy to operate and replace.