Flow control product information introduction < / div >

flow control pneumatic valve is controlled by a set with traffic control of pneumatic valves and actuators, is mainly suitable for the corrosive liquid, the system of the pipeline flow control.

flow control characteristics of pneumatic valve is as follows:
1, has the pressure balance function, high sensitivity,
2, low noise, reliable performance, from maintenance

3, with a standard modular design 4, through the throttle pneumatic valve according to the standard drawing to adjust flow, convenient and quick.
5, through the assembly, can undertake various combination control


flow control pneumatic valve operation principle:
flow control type pneumatic valve, pneumatic valve was accused of medium pneumatic valve chamber film under pressure P1 input via the control line before, after the throttle pneumatic valve throttling pressure Ps membrane house on input, P1 and Ps of delta Ps = P1 - namely Ps referred to as the effective pressure. P1 role in the effects of the thrust and Ps on the diaphragm on the diaphragm thrust produced by the poor and the spring force balance determines the pneumatic valve core and the relative position of pneumatic valve seat, to determine the flow rate through the pneumatic valve. When flowing through the pneumatic valve flow rate increases, the delta Ps increase, the P1, Ps, respectively, next, the film room, make the air to the pneumatic valve core seat direction, which changes the circulation between core and pneumatic valve seat area, increase the Ps, increase after Ps role on the diaphragm thrust and the spring force and P1 on the diaphragm thrust balance to achieve the purpose of flow control in a new location. On the other hand, in the same way. Set is accused of medium flow by adjusting throttle pneumatic valve to determine the relative position with the pneumatic valve seat.


the following calibration diagram for flow pneumatic valve: for a more accurate and rapid setting of pneumatic valve flow, provide the following figure for user reference calibration ( If you need more precise set flow or nominal diameter 6 - 250 of the pneumatic valve set flow, flowmeter measurement should be adopted) The calibration chart is only applicable to water, and other media can refer to the diagram, and appropriate adjustments in the practical process. 【 Look not to understand if there are any technical parameters can be directly contact website technical guidance to give standard reference material 】


flow control pneumatic valve structure is introduced:

pneumatic valve parts description:





1 current limiter
2


3 pneumatic pneumatic valve body seat 4



5 pneumatic valve shaft pneumatic valve cap


6 filling pneumatic valve

7 actuator enclosure

8 suppress diaphragm

9 bellows



flow control pneumatic valve pneumatic valve body figure size and weight:





DN ( mm)
15
20
25
32
40
50
65
80
100
125
150
200
250

L( mm)
130
150
160
180
200
230
290
310
350
400
480
600
730

B( mm) 212年

212
238
238
240
240
275
275
380
380
328
354
404

重量( Kg)
7
9
10
13
17
22
33
41
60
79
85
145
228

B1( mm)
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -


1205 855 630

weight ( Kg)
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - - 140年

210
300