Swing check valve is widely used in chemical, petrochemical, petroleum, papermaking, mining, electric power, liquefied gas, food, pharmaceutical, electronic industry and other relatively clean media fields.
Vertical, horizontal, recommended not tilt installation

Lift type check valve is widely used in chemical, petrochemical, petroleum, paper, mining, electric power, liquefied gas, food, pharmaceutical, electronic industry and other media relatively clean fields.
It is recommended THAT THE valve be installed horizontally with the bonnet facing up vertically

The sandwich check valve is mainly composed of valve body, disc, stem and spring, and is connected by clamp. Due to the short disc closing stroke and spring loading, the water hammer phenomenon can be significantly reduced. Mainly used in municipal, industrial and high-rise building water supply, drainage pipe network, because its structural length is shorter than the general check valve, so easy to install

Clamp check valve is also known as countercurrent valve, reverse check valve, back pressure valve, check valve. This kind of valve is automatically opened and closed by the force generated by the flow of the medium itself in the pipeline, which belongs to an automatic valve.

Vertical check valve: due to the pressure of the inlet medium in the pipeline, and overcome the spring resistance to open or close the valve. When the inlet end medium pressure is lower than the outlet end, the spring will push the valve core to the valve seat and make the valve close, prevent the medium from countercurrent, so the start and stop action. Vertical check valve is widely used in chemical, liquefied petroleum gas, fluid and other industries. Check valve according to the structure, can be divided into lifting type check valve, swing type check valve and butterfly check valve three.