Application Of Check Valve In Sewage Lifter

The application of check valve in sewage lifter can solve the problem of sewage backflow. A drain pipe with a check valve prevents the backflow of sewage from damaging the equipment and reduces the water storage capacity in the equipment.

The purpose of sewage lifter is to pump out the water which can not be drained by gravity flow. It is used in the basement buildings. The sewage from the basement is pumped through a drainage pipe to the upper floor or a nearby drain pipe, but when the sewage elevator stops running, some of the sewage still in the drainpipe begins to flow back, because the sewage pipe is usually vertical upward, the pressure generated by the backflow is huge, if the sewage directly into the equipment, 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 media flow back valve, also known as check valve, one-way Valve, 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. The check valve can also be used in piping where the pressure may rise to supply an auxiliary system that exceeds the 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 the valve seat acts by the fluid pressure and the self-coincidence disc of the valve disc to cut off the flow when the water pump stops the sewage backflow.

Check valves are used in sewage lifters and are generally installed in the discharge pipe. A drain pipe with a check valve prevents the backflow of sewage from damaging the equipment and reduces the water storage capacity in the equipment.