Pneumatic valve pneumatic device is introduced

pneumatic valve pneumatic device is safe, reliable, low cost, convenient operation and maintenance, is a major branch of pneumatic valve drive structure. The pneumatic device applied in occasions with explosion-proof requirement more. Pneumatic valve pneumatic device USES air supply work pressure is low, generally no more than. MPa。 Shoulds not be too great for structure size, and pneumatic valve pneumatic device the total thrust of impossible. A pneumatic device, pneumatic valves conditions of use air pressure. ~。 （ MPa） The environmental temperature and medium temperature ~ ( ℃) Piston speed and blade size linear velocity ~ ( mm/s） Electromagnetic control input signal current ~ mA 2, the classification of the pneumatic valve pneumatic actuator pneumatic valve pneumatic device according to its structural characteristics are divided into three types: diaphragm pneumatic device, cylinder or pneumatic device, oscillating pneumatic device. Pneumatic device and pneumatic motor type film, film cylinder, disc iris diaphragm (1) (2) the flat diaphragm, spring, piston cylinder, cylinder, piston and cylinder (1) single cylinder (2) the double piston ring (1) O ring (2) J ring (3) U sealing ring (4) the v-shaped sealing ring, piston rod, manual operating mechanism, pneumatic accessories (1) loop system (2) the signal return path (3) air filter (4) reduced pressure pneumatic valve oil mist, (5) control the reversing pneumatic valve swing, cylinder block, the stator, rotor, blade structure characteristics of the three, all kinds of pneumatic device diaphragm short journeys, < mm, compact structure, flexible, no manual institutions cylinder stroke length, buffer mechanism as needed, output enough with double cylinder structure, there are manual and pneumatic switch structure oscillating simple structure, low cost, reciprocating motion into rotary motion directly pneumatic motor type can directly replace the pneumatic valve electric actuator motor and become a pneumatic device, thus can electric actuator torque control, but complex



Canon's relationship with buffer stroke pneumatic device cylinder

Canon of cylinder body ( mm）
buffer stroke length ( mm）

<
~

~


>
~
4, pneumatic device, the major parts material and the machining precision pneumatic device the major parts material and heat treatment requirements



parts name
material and heat treatment requirements standard no.




cold dial the brass cylinder of GB/T -

centrifugal casting bronze ZCuAFe, ZCuSnPb
GB/T -


Yang grade aluminum alloy surface oxidation of GB/T -


GB seamless steel tube chrome/T -


GB/carbon steel chrome T -

HT
GB/T - cast iron


HT GB / T -


high quality carbon steel chrome plated piston
GB/T -

iron chrome plated HT
GB/T -

aluminum alloy ZL
GB/T -

aluminum alloy ZL
GB/T -


leaf copper aluminum alloy ZL, ZL
GB/T -

quality carbon steel
GB/T -

- carbon steel Q
GB / T -

end cover ZL, ZL

aluminum alloy GB/T -

- carbon steel Q
GB / T -

HT
GB/T - cast iron

seal rubber, leather, etc.

HG/T -

collar bronze ZCuSnZnP

GB/T -

brass ZCuZnMnPb
GB/T -

powder metallurgy



of the piston rod quality carbon steel chrome plated
GB/T -

stainless steel Cr, Cr
GB/T -
pneumatic device on the surface of the main parts machining accuracy




of the sliding surface roughness Ra/mu m


sliding surfaces of a piston rod. ~。 Operation table


cylinder diameter mm or less of the sliding surface is
. ~。

> > cylinder diameter mm
. ~。


cylinder diameter or greater mm. ~。


sliding surfaces of a piston. ~。


sliding surfaces of a liner. ~。
YAZE( Pneumatic company's main products: pneumatic pneumatic valve pneumatic ball valve pneumatic butterfly valve pneumatic actuator