Adjust the use of pneumatic valve function < / div >

how to correctly use regulation of pneumatic valve is very important, you must first understand pneumatic valve adjustment function, control function can be used correctly.

to adjust the main functions of the pneumatic valve is mainly embodied in five aspects: work flow characteristic, adjustable range, small open degree of performance, flow coefficient, adjust the speed, according to the below under the several aspects to elaborate.

1, adjust the flow characteristic of the pneumatic valve is to reflect the relationship between the opening and changing flow, to adapt to the different system features, reflects the speed of flow control system of logarithmic characteristics, slow response to the temperature control system, the linear flow characteristic, flow characteristic reflects the quality of the pneumatic valve adjustment.

2, regulating pneumatic valve R values reflect the range of pneumatic valve to control flow, such as: R = Qmax: Qmin, R adjusting flow range is wide, the greater the performance index is better also, commonly used pneumatic valve R = 30, good pneumatic valve' For example: V ball, multi-functional pneumatic valve 】 R is 100 - 200 like this, must choose suitable according to the working condition of pneumatic valves, not because the price choice of pneumatic valve.

3, small open performance only refers to some part of the pneumatic valve will be subject to the conditions of structure, performance is relatively poor, there are some small open degrees have rev jump is small, but there are some small open degree of pneumatic valve is useful, because they have a fine tune function, adjustable small flow, namely small open degree of pneumatic valve has restricted adjustable, please carefully understand pneumatic valve performance before buying it.

4, regulating pneumatic valve flow coefficient through traffic capacity, said the same caliber Kv value is bigger, the better, according to the request of different working condition choose pneumatic ball valves, pneumatic butterfly valve, pneumatic valve adjustment.

5, adjust pneumatic valve regulating speed system to the requirement of the speed of the pneumatic valve action, this is adjustable.
in addition to the function, select the regulating pneumatic valve also look at the differential function, prevent function, corrosion resistance, compression and heat resistance functions, adjust the pneumatic valve appearance and weight, according to adjust the various functions of pneumatic valve, below small make up made a comparison table, the adjustment of the pneumatic valve production pneumatic valve only for your reference, the table will make you be clear at a glance.





function

adjustment

cut


to overcome the pressure difference held in


corrosion

pressure


of heat-resistant weight


appearance

recommend choosing star


straight travel

single-seat pneumatic valve

*

+

-

-

*

*

*

-

- * * * *




two-seater pneumatic valve

*

-

*

-

+

*

*

-

- * * * *




pneumatic valve sleeve

*

-

*

-

+

*

*

-

- * * * *




Angle pneumatic valve

*

+

-

+

*

*

*

-

- * * * *




the 3-way solenoid

*

+

-

-

-

*

*

-

- * * *




pneumatic diaphragm valve

-

*

-

+



-

-

-

-

* *


quarter-turn

butterfly pneumatic valve


* *


-

+

+

*

*

*

*

*****


球气动阀

*

*

*

*

*

*

*

-

-

* * * * *


eccentric pneumatic valve


* *


*


* *



* *


-

-


* * * * * * symbol function meets the requirements, the basic calculate accord with, - + said Said performance does not meet the requirements, pneumatic valve small make up production for your reference.
from the comparison we can see: adjusting eccentric pneumatic valve, pneumatic ball valve, pneumatic valve is the most advantage of choice, more say price is also cheaper than straight travel pneumatic valve, pneumatic valve is the most commonly used Angle. But still please choose according to their working conditions, think a lot of straight travel can achieve the performance of the pneumatic valve, there is no angular travel!