Pneumatic Regulating Diaphragm Valve

Pneumatic Regulating Diaphragm Valves
Pneumatic Regulating Diaphragm Valves

Pneumatic regulating diaphragm valve is a type of control valve that uses compressed air to operate the valve positioner.

Description

Pneumatic regulating diaphragm valve is a type of control valve that uses compressed air to operate the valve positioner. The valve has a diaphragm that separates the valve body from the control chamber, and the pressure differential between the two chambers controls the valve position. The valve can be used to regulate the flow of gases or liquids in various industrial applications, such as in the chemical, pharmaceutical, and food processing industries. The use of a pneumatic actuator allows for precise control and quick response times. The regulating function of the valve is achieved by monitoring and adjusting the pressure in the control chamber, which changes the position of the valve disk and, consequently, the flow rate.

 

Main Material
No. Name Material
1 Body WCB/304
2 Bonnet WCB/304
3 Diaphragm EPDM/F46
4 Disc WCB/304
5 Cylinder Aluminum Alloy
6 Piston Aluminum Alloy
7 Stem Stainless Steel 304/45#
8 Way of Connection Flange

 

Shape Dimension
DN Nominal
Pressure
MPa
L D D1 n-φd f H Air Pressure
MPa
KG φA Drawing
15 1.0 125 95 65 4-14 2 215 0.6 5 110
20 1.0 139 105 75 4-14 2 220 0.6 5.2 110
25 1.0 145 115 85 4-14 2 225 0.6 5.4 110
32 1.0 160 140 100 4-18 2 240 0.6 6.9 140
40 1.0 180 150 110 4-18 3 285 0.6 13.5 170
50 1.0 210 165 125 4-18 3 307 0.6 16 170
65 1.0 250 185 145 4-18 3 327 0.6 22 200
80 1.0 300 200 160 8-18 3 390 0.6 31 230
100 1.0 350 220 180 8-18 3 470 0.6 50 260
125 1.0 400 250 210 8-18 3 637 0.6 65 310

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