0102030405
Plastic Acutator Type Pneumatic Diaphragm Valve
Products Features
1)High cycle life, excellent sealing performance.
2)Light weight and excellent corrosion resistant, which due to unique thermoplastic construction.
3)All optional Equipment can easily be added or removed in the field.
4)Small flow resistance,high flow capacity, and the positioner can be installed to achieve flow control.
5)The adjustable closing travel stop mechanism is designed to enhance the service life of the diaphragm and simplify the maintenance process.
What is pneumatic diaphragm valve?
Pneumatic diaphragm valve basic introduction pneumatic diaphragm valve. it is a special form of cut-off valve, appeared in the 1920s. Its opening and closing parts is a piece of soft material made of diaphragm, the valve body cavity and the valve cover cavity and drive components are separated, so it is called pneumatic diaphragm valve. Pneumatic diaphragm valve outstanding feature is the diaphragm to the lower body cavity and the upper bonnet cavity. It is located in the diaphragm above the stem, flap and other parts of the medium from corrosion, eliminating the packing sealing structure, and will not produce medium leakage.
What is advantages of pneumatic diaphragm valve?
Pneumatic diaphragm valve has two main advantages:
1) the valve does not need a separate stem packing sealing structure, the diaphragm in the cut off medium at the same time play a role in the stem sealing.
2) It is the flexibility of the diaphragm closure is reliable, and even on the dirt liquid can do a good job of cutting off.
Therefore, the operating mechanism and the medium channel is completely separated. The pneumatic diaphragm valve can not only be applied to the food industry and pharmaceutical industry, but also for some difficult to transport the media and dangerous media.
What is advantages of pneumatic diaphragm valve?
L(mm) | d | L2 | |||||||
HG/DIN | JIS | ANSI | Socket | Thread | |||||
HG/DIN | JIS | ANSI | HG/DIN | JIS | ANSI | ||||
21 | 110 | 110 | 20 | 22 | 21.3 | Rc1/2 | PT1/2 | NPT1/2 | 155 |
22 | 120 | 120 | 25 | 26 | 26.7 | Rc3/4 | PT3/4 | NPT3/4 | 165 |
23 | 130 | 130 | 32 | 32 | 33.4 | Rc1/2 | PT1/2 | NPT1/2 | 173 |
25 | 160 | 160 | 40 | 38 | 42.2 | Rc1-1/4 | PT1-1/4 | NPT1-1/4 | 248 |
28 | 180 | 180 | 50 | 48 | 48.3 | Rc1-1/2 | PT1-1/2 | NPT1-1/2 | 257 |
30 | 210 | 210 | 65 | 60 | 60.3 | Rc2 | PT2 | NPT2 | 292 |
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