Check valve manufacturers explain the classification and principle analysis of check valves

1, check valve manufacturers describe the role of the check valve

The check valve is also known as the stop reverse valve, single flow valve, check valve or check valve, its function is to ensure the directional distribution of the media in the pipeline, and it is impossible to cause diverting.

The closing of the check valve is automatically opened and closed by virtue of the strength of the media movement. Check valves are fully automatic valve devices. The check valve only allows media to be used in the line that moves at an Angle to prevent media diversion. Its wide application area, can be used in large and small caliber, a variety of media and power station ultra-high pressure system.

Check valve manufacturers

2, check valve manufacturers explain the principle of check valve

Check valve opening means to open the disc by relying on the forward flow of the medium. The same principle is that the medium flows backwards to promote the closure of the disc. Check valves are also called check valves, check valves, counterflow valves and back pressure valves. Most of them are automatic valves, the main function is to prevent the backflow of the medium, to prevent the reversal of the pump and drive motor and the leakage of the container medium. At the same time, it is also used for safety protection in auxiliary systems that may increase the pressure beyond the system pressure.

3, check valve manufacturers share the classification of check valves

Check valves are mainly used to prevent the backflow of media in the pipeline, and bottom valves and duck-billed valves are also check valve categories.

Check valves can be divided into three types:

1. The lifting type is divided into two categories: vertical and horizontal. The elevating structure moves along the axis.

Example: 1, the lifting type silent check valve is used in the pipeline with high quality requirements of water supply and drainage engineering; At the same time, it can be installed at the pump outlet, requiring a relatively high pressure (PN2.5Mpa) pipe network, is an important product of waterproof impact check valve.

2, the lifting type noise reduction check valve is suitable for high-rise building water supply and drainage system and pump outlet, not suitable for sewage pipeline field.

3, horizontal check valve is suitable for diving, drainage, sewage pumps, especially sewage and sludge systems.

The rotating structure is divided into single valve, double valve and multiple valve. The structure chosen is based on the rotation of the center of gravity.

Example: 1, the selection of rubber check valve applied to the urban water pipe network system, is not suitable for the precipitation of a large amount of sediment in the sewage pipeline.

2, rotary single-disc check valve has a wide range of use, can be installed in water supply and drainage, petroleum, chemical, metallurgical, industrial and other pipelines, which is a suitable occasion for space constraints.

3, the dish structure is straight through.

Example: 1. Butterfly double disc check valves are specifically used in high-rise pipe roads and hydrodynamic pipe networks containing corrosive irritant media and domestic sewage.

2, the rotary disc type double disc check valve is used in a wide area, can be installed and used in water supply and drainage engineering, petroleum industry, chemical industry, metallurgical industry, industrial production and other pipelines, which is suitable for public places with regional limitations.

3, horizontal check valve can be used for deep diving, drainage, sewage submersible pump, especially domestic sewage and sludge treatment system.