1、 The structure of the pneumatic ball valve The pneumatic ball valve is evolved from the plug valve. As a ball, its opening and closing parts use the ball to rotate 90 degrees around the axis of the valve stem to open and close.

Common Terms of Teflon Hose Teflon Compensator and Properties of PTFE
Corrugated PTFE hose is usually used to escort all kinds of liquids or gases under high pressure or high and low temperature conditions, while maintaining high flexibility.
Corrugation type
The ring corrugated PTFE hose is composed of separate ring corrugated shells arranged parallel to the axis, while the corrugated spiral hose is in discontinuous spiral shape. The assembly of two types of corrugated PTFE hoses can adhere to flexibility under considerable pressure. At the same time, spiral corrugated hoses also have a certain self-cleaning ability. Wave pitch (also known as pitch and mountain shape)
Corrugated PTFE hoses are usually manufactured according to the specified wave pitch (tight thread). Each manufacturer has a standard wave distance expressed in accordance with the number of waves per unit length of pipe body, and the density of wave distance should comprehensively consider the requirements for flexibility and economy during application.
The thin thread PTFE hose has less ripple on the pipe body per unit length. The flexibility of this hose is not as good as that of the hose with standard wave distance, and the bending service life is also much lower. The thin thread PTFE hose is usually used in the application environment where the requirements for flexibility and service life of the hose are not high. The PTFE compensator may be used for shock absorption. wall thickness
The manufacturer shall fully consider the requirements for flexibility, bending life and corrosion resistance when designing the wall thickness of the pipe body. Increasing or decreasing the wall thickness has corresponding advantages and disadvantages for users.
The metal mesh sleeve on the hose assembly makes the PTFE hose assembly reach a higher pressure level through the restriction of hose stretching and shock absorption. Under the condition that the experimental pressure does not deform the tube body, the application pressure of the hose can be increased by adding a second layer of netting.