Swing Check Valve

الوصف

Fluorine-lined high -quality check valve , the check valve only allows the medium to flow in one direction and prevents the fluid from flowing back. Usually this valve works automatically. Under the pressure of flowing in one direction, the valve disc opens. When the fluid flows in the opposite direction, the fluid pressure and the weight of the valve disc or PTFE valve ball act on the valve seat, thereby cutting off the fluid.
PTFE check valve structural features:
1. Swing check valve
The main models are: fully lined H*4F*6 and H*4F*6 single-flap swing series and H*6F*6 double-flap swing series. Their structural forms are: the valve discs rotate around the (pin) shaft outside the valve seat, open and close, and prevent the medium from flowing back. The characteristics of the H*4F*6 and H*4F*6 check valves are: the (pin) shaft and the valve disc are designed as one, and the (pin) shaft lined with FEP is embedded in the special groove formed between the valve body and the valve cover. It is flexible to open and close and has reliable sealing. In addition, the characteristics of the H*2F*6 and H*6F*6 check valves are: in addition to the valve body and valve disc, the return spring is also lined with corrosion-resistant fluoroplastics. The spring is reasonably designed so that the valve disc can also generate sufficient sealing pressure in the low-pressure area, ensuring the reliability of the valve sealing in the low-pressure area.