Flat brake characteristics and advantages and disadvantages of pneumatic valve

flat brake characteristics of pneumatic valve
, pneumatic seat selection of prestressing force O ring seal and applying floating pneumatic seat structure, brake plate was made import and export bidirectional pneumatic valve seal; And the structure of the open-close torque is only general/pneumatic valves, to easily open and close the pneumatic valves;
, when fully open, smooth to linear, small flow resistance coefficient, pressure loss of pipe can connect the bulb to clean;
and choose with the sealing ability of packing structure, need often to open and close is extremely convenient, and reliable sealing, has assisted in the packing sealing grease writing structure, sealing function must be strong, real reach zero leakage; Solved the general pneumatic valve packing the disadvantages of the simplest leakage;
pneumatic valve, flat gate closed automatically when removing the inner cavity and pressure, ensure use safety;
, fully enclosed structure, good protection function, can be used to all requests.
pneumatic valve plate gate
flow resistance is small, the advantages of not reducing the flow resistance of flow resistance and short just. Flat brake of the pneumatic valve with flow guide hole is installed in piping can be directly use pig for pigging. Because ram is sliding on the surface of the two pneumatic valve seat, and pneumatic valve plate brake fluid can be applicable to the medium with suspended particles, pneumatic valve sealing surface is actually flat gate location automatically.
pneumatic valve seat sealing surface will not damaged by the pneumatic valve body thermal deformation. And closed under cold state, even if the pneumatic valve pneumatic thermal elongation also won't make the sealing surface of the stem under overload. Together when pneumatic valve closed, without diversion hole plate brake pneumatic valve nor request closed position of the gate is of high accuracy, thus the electric flat pneumatic valve can be used to control opening and closing position.
the disadvantage of pneumatic valve plate gate
when medium pressure is low, lack to metal seal face seal force to meet the seal. On the contrary when medium pressure is high, if the sealing surface not smooth system of medium or foreign media, often can make the sealing surface wear is too large for opening and closing. Another deficiency is,
in the circular flow channel lateral movement of the circular disc only when it is in % of the pneumatic valve position, this kind of pneumatic valve to control the flow of more sensitive. And ram but in high speed and high density flow medium, violent oscillation happens. If the pneumatic made V his seat and disc close guidance, it also can be used as a savings.