Slow closed swing check valve-Q valve, ball valve, exhaust valve, Jiangyin Haotian Plastic Industry Co., LTD

Slow closed swing check valve

DATA：2020-09-02 CLICLS：683

Perhaps, we only know slow closing check valve, but do not know what is swing check valve? In fact, swing check valve is also a kind of slow closing check valve, its role also has the effect of surprise, so let xiaobian tell you what is the swing check valve?

Swing check valve is also called check valve or check valve, its role is to avoid the phenomenon of backflow of media in the pipeline. The opening and closing parts are opened and closed by themselves depending on the flow and force of the medium. This is used to avoid the backflow of the medium. The valve is called the slow closing check valve.

Swing check valve has three purposes:

1, in fact, swing check valve is applied to the nominal pressure is N1. Ompa-42.OMPa, class150-2500 medium;

2, the nominal diameter is DN15-1200mm, NPS1/2-48 medium; 3, the working temperature is -196-540℃ of all kinds of pipelines, is used to avoid the phenomenon of media backflow.

According to the choice of different materials, such as WCB, CF8, CF3, PVC elbow - big bend, such a swing check valve is suitable for use in water, steam, oil, nitric acid, acid, strong oxidizing media, urea and other media.

Now, swing check valve is widely used in petroleum, chemical, pharmaceutical, chemical fertilizer, power and other pipelines.

Swing check valve is equipped with rocker arm swing type structure, all the valve opening and closing parts are installed in the body of the body, is not through the body, in addition to the flange parts of the use of sealing gasket, sealing ring, the overall is no leakage point, is to eliminate the possibility of leakage of the valve.

Swing check valve rocker arm and disc connection, the use of spherical joint construction, which causes the disc in the 360°C range is a degree of freedom, with the appropriate trace position for compensation.

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