Diaphragm valve main features:
The main advantage of the diaphragm valve is that its operating mechanism is separate from the medium path, which not only ensures the purity of the working medium. But also prevents the possibility of medium impact on the working parts of the operating mechanism in the pipeline. In addition, the stem does not require any form of separate sealing unless used as a safety device in the control of hazardous media. Diaphragm valve, because the working medium contact is only diaphragm and valve body. Both can use a variety of different materials. So the valve can ideally control a variety of working media. Especially suitable for medium with chemical corrosive or suspended particles.
Principle of diaphragm valve:
The operating temperature of the British standard diaphragm valve is usually limit by the material used in the diaphragm and body lining. Its operating temperature range is approximately -50 ~ 175 degrees. Diaphragm valve structure is simple, only by the body, diaphragm and valve cover assembly of three main components. The valve is easy to remove and repair quickly and diaphragm replacement can be done on site and in a short time. The operating mechanism and the media access separate the diaphragm valve is not only suitable for food and pharmaceutical industry production. But also suitable for some difficult to transport and dangerous media. A wider variety of synthetic rubber and engineered plastics applications. As well as a wider selection of body linings, have made diaphragm valves widely used in all areas of modern industry.
Diaphragm valve classification:
Diaphragm valve according to the structure form can divide into: house type, straight flow, cut-off type, straight through type, gate type and right Angle six. The connection form is usually flange connection. According to the driving mode can divide into manual, electric and pneumatic. Pneumatic drive is divide into normally open, normally closed and reciprocating.