Cock pneumatic pneumatic valve and gate valve

cock pneumatic pneumatic valve and gate valve
the comparison of the pneumatic valve, pneumatic valve rod lift wedge cock switch frictionless, guarantee the pneumatic valve is easy to operate, no leakage and long service life.
, pneumatic valve, pneumatic valve rod lift wedge cock switch frictionless, guarantee the pneumatic valve is easy to operate, no leakage and long service life.
opens a pneumatic valve pneumatic valve core upward movement from pneumatic seat first, and then the rotation of the frictionless ° to pneumatic valve opens; Close the pneumatic valve, pneumatic valve core frictionless spin ° first, and then to the pneumatic seat to completely shut down. In the process of the pneumatic valves open and close, pneumatic valve core and always there would be no friction between the valve seat.
, pun is broken and the automatic pneumatic valve sealing device ( DBB features match ABV automatic drain system.
, both the top and bottom end cover, can quickly online maintenance and repair;
in the case of pipelines in medium, just put the pneumatic valve is closed, you can remove the bottom cover, can quickly clear the grains of sand, slag and other hard particle, at the same time convenient to pneumatic valve repair and replacement of seals.
brake of the pneumatic valve disadvantages:
. Disc friction always exist in the process of opening and closing, so the operating torque is big, and are prone to scratches on the surface of the disc and pneumatic valve seat seal, leading to pneumatic valve leakage;
. No self-check leak device, ( Even through the two pneumatic valve to install a small pneumatic brake valve to achieve this function, can achieve automatic detection function;
. Medium containing particles of impurities, such as grains of sand, and deposition in the pneumatic valve at the bottom, cause the gate cannot put reach the designated position, lead to pneumatic valve leakage is very serious, This is fatal flaw for brake pneumatic valve.