When we design a sewage treatment pipeline system, the most worry is sewage backflow, damaged equipment, reduced efficiency. And check valve can solve the problem of sewage backflow, can effectively prevent sewage backflow, reduce the capacity of water storage equipment.
The purpose of the sewage lifter is to pump out the water which can not be drained by gravity flow. It is usually used in basement buildings. The sewage from the basement is pumped through a drainage pipe to the upper floor or a nearby drainage pipe. However, when the sewage elevator stops running, some of the sewage begins to flow back because the pressure is lost. Since the sewage pipe is usually vertical, the pressure produced by the backflow is so great that if the sewage falls directly into the equipment, it is likely to damage the equipment. The solution to the backflow problem is to install a check valve in the drain pipe.
Check valve is to rely on the media flow and automatically open and close the valve disc, used to prevent the media reverse flow valve, also known as check valve, one-way valve, backflow valve, and back pressure valve. Check valve is an automatic valve, its main role is to prevent media reverse flow, to prevent the reversal of the pump and drive motor, as well as the release of the container media. Check valves can also be used to supply lines in which pressure may rise to a secondary system above system pressure. Check valves should generally be installed horizontally in the line.
The application of check valve in sewage lifter can solve the problem of sewage backflow. The role of the check valve is to allow the medium to flow in one direction, to prevent reverse flow. It works automatically, the valve disc opens under the fluid pressure of the sewage lifter, and when the water pump stops the sewage backflow, the fluid pressure and the self-coincidence disc of the valve disc act on the valve seat, thus cutting off the flow.
Post time: Nov-25-2021