Check valve used in sewage hoist can solve the problem of sewage backflow. A check valve installed in the drain can prevent sewage backflow damage equipment, while reducing the capacity of water storage in the equipment.
The purpose of the sewage elevator is to remove the water that cannot be drained by gravity flow through the strong pressure generated by the pump, and it is mostly used in basement buildings. Basement sewage through the drain pipe is pumped into a layer or the drainage pipe near the outflow, but after stop running sewage lifter part also in drain sewage without pressure began to return, because of the sewage pipe is vertical, back pressure, if the sewage directly into the equipment, is likely to damage the equipment. The solution to the backflow problem is to install check valves in the blowdown line.
Check valve is to rely on the flow of the medium itself and automatically open, close the disc, used to prevent media backflow valve, also known as check valve, one-way valve, reverse flow valve, and back pressure valve. Check valve belongs to a kind of automatic valve, its main function is to prevent the backflow of media, prevent the reversal of pump and drive motor, as well as the release of container media. Check valves can also be used in piping where pressure may rise above system pressure to supply an auxiliary system. Check valves should generally be installed horizontally in the line.
Check valve used in sewage hoist can solve the problem of sewage backflow. Check valves allow media to flow in one direction and prevent reverse flow. It works automatically, and the valve disc opens under the action of the fluid pressure from the sewage hoist. When the water pump stops sewage backflow, by the fluid pressure and the valve disc self-coincidence valve disc action on the seat, thus cutting off the flow.
Check valves are used in sewage lifters and are generally installed in the drain line. A check valve installed in the drain can prevent sewage backflow damage equipment, while reducing the capacity of water storage in the equipment.