Bellows structure The bellows tube is welded to the valve cover and valve stem. The bellows tube has many crimps, which are compressed or expanded according to the movement of the valve stem. (Scientifically speaking, when the valve is in the open position, the bellows will be compressed, when the v... read more
In general information, valves with a valve operating temperature t>450°C are called high-temperature valves. There is no unified standard for the classification of high-temperature valves for high-temperature valves. In the "High-temperature grades and main materials of high-temperature valves" pub... read more
The ball valve is mainly used to cut off or connect the medium in the pipeline, and can also be used for fluid adjustment and control. Among them, the hard-sealed V-shaped ball valve has a strong gap between the V-shaped core and the metal seat of the hard alloy. Shearing force is especially suitabl... read more
What is a plug valve? The plug valve is a shut-off or plunger-shaped rotary valve. The passage port on the valve plug is the same as or separated from the passage port on the valve body by rotating 90 degrees to achieve opening or closing. The shape of the plug of the plug valve can be cylindrical o... read more
1. The working principle of pneumatic valve Pneumatic valve is a pneumatic control valve that uses compressed air into the pneumatic actuator to drive the piston to move, and the rotating or lifting torsion shaft drives the valve stem to drive a pneumatic control valve. Pneumatic valves are divided ... read more
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