Main components of pneumatic butterfly valve
The flange sealing methods of the end and adapter plate of the pneumatic butterfly valve that we commonly use in life are JBF, GF, HF and ZF.
The ordinary pneumatic butterfly valve is a kind of curved capsule composed of, and net wire, commonly known as pneumatic tube, corrugated pneumatic tube, leather tiger, etc. The two 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 pockets is usually 1-3, but it can also be designed to form 4 or more than 5 curved pockets according to the demand, and it can also be used by superposition of two pneumatic butterfly valves under certain conditions.
Pneumatic butterfly valve is also called as air stroke conditioner and air vibration isolator according to its performance and characteristics. The end structure of the existing curved bag pneumatic butterfly valve can be divided into three categories according to the connection mode:
One is the fixed flange connection type. The size of the edges at both ends of the pneumatic butterfly valve is equal to or slightly smaller than the maximum outer diameter of the crankcase. After drilling several holes, use the blue ring and the end plate to fasten the connection;
The other type is the looper flange connection type. The size of the edges at both ends of the pneumatic butterfly valve is much smaller than the maximum outer diameter of the curved capsule, and there is no need to drill holes. A special flange ring is used to fasten the connection with a common end plate;
The third type is a self sealing type, which is not connected by flange, but is pressed into the end plate and self sealed when compressed air is filled.
In fact, we must be able to see a lot of valve installations similar to pneumatic butterfly valves in our life. Today's article on this topic will be shared with you here. Thank you for your reading!