Lyncar - Sump Pump Check Valve - 2" / 2 po - 29112

The LynCar 29112 is a 2-inch sump pump check valve designed to prevent discharged water from flowing back into a sump basin after the pump stops. Its durable ABS valve body provides corrosion-resistant performance, while flexible rubber coupling ends simplify installation on 2-inch sump pump discharge piping. Stainless steel clamps secure the couplings and allow the valve to be removed for inspection or replacement without cutting the pipe. By limiting backflow, the LynCar 29112 reduces unnecessary pump cycling, lowers operating strain, and helps extend sump pump service life. It is a practical choice for residential basement drainage and foundation-water removal systems.

Cross References

LynCar — 29112: Standard 2 in sump pump check valve

LynCar — 29114: Standard 1-1/2 in sump pump check valve

LynCar — 29122: 2 in silencer sump pump check valve for installations requiring reduced hammering noise

Usage

The LynCar 29112 is installed inline on the 2-inch discharge pipe above a sump pump. When the pump operates, water pressure opens the internal check mechanism and allows water to move away from the basin. When the pump stops, the valve closes automatically to prevent water remaining in the discharge line from draining back into the sump pit. The rubber coupling ends slide over the pipe, and the stainless steel clamps are tightened to secure the valve. Correct installation helps reduce repeated pumping cycles, energy use, motor wear, and the risk of basin water levels rising unnecessarily.