How much is the 6 point check valve for the water pipe at home?
1, home hose with 6 points of the water pipe, check valve, copper 20-40 yuan.2, check valve refers to rely on the flow of the media itself and automatically open and close the valve, used to prevent the media back of the valve, also known as check valve, one-way valve, counter flow valve, and back pressure valve. The check valve belongs to an automatic valve, whose main function is to prevent the backflow of medium, prevent the reverse of pump and drive motor, and release the container medium.
Different places, different prices, it is estimated that 20-30 copper. Complete check is impossible, and the effect depends on the actual situation,
Check valve (One-way valve): check valve, also known as one-way valve or check valve, its role is to prevent the medium back flow in the pipe. Pump water off the bottom valve check valve also belongs to class. The opening and closing parts depend on the flow of the medium and the power is turned on or off by itself. The valve that prevents the backflow of the medium is called a check valve. Check valves belong to the automatic valve, mainly used for one-way flow of media channels, allowing only medium to flow in one direction, to prevent accidents. ... I've done fire fighting... And home water... "It doesn't let the water go back at all" (of course, it doesn't work when it doesn't work.. it doesn't let water run back at all)6 point check valve for home. I bought it in Guilin. That kind of copper is 12 yuan oneThere are questions about the check valve. You can directly search the Baidu encyclopedia can be intuitively responded to.. but the price problem.. every place should be different
