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Butterfly valve is a structurally simple regulating valve that can also be used for low-pressure and large-diameter regulation.

Butterfly valves can be used to control media such as air, water, steam, various corrosive media, mud, oil, etc.

1. Characteristics:

1) Small size, light weight, flexible and convenient operation;

2) Simple and compact structure, good sealing performance, easy manufacturing and maintenance;

3) Widely applicable, with diameters ranging from a few millimeters to several meters.

2. Working principle:

The butterfly valve opening and closing component is a disc-shaped butterfly plate (composed of two symmetrical discs). Install a pin shaft on each side of the disc-shaped base plate that is perpendicular to the axis and integrated with the disc-shaped base. By rotating the handwheel or handle, the moving ring is turned inward and drives the disc-shaped seat to rotate together to achieve the opening and closing action.

3. Application areas:

Suitable for situations in the petroleum industry that require low pressure but high flow rate; It is also suitable for cutting off general industrial pipelines such as gas pipelines and waterways in chemical plants; Also applicable to pipeline systems in high-temperature and high-pressure power plants; In addition, it can also be used as a valve in departments such as metallurgical machinery, food and medicine, water supply and drainage, and municipal construction.