Jackel Inc designs and manufacturers an extensive line of Sump and Sewage Check Valves. They are made of ABS and PVC, making them extremely durable, while at the same time flexible and easy to install. Jackel's line of Sump and Sewage Check Valves includes several different sizes and configurations. Stainless steel clamps are included with several models.
Check Valves for Sump Applications are designed for mostly clean water in sump pits. They are economical and are stocked in several sizes most of which are adaptable to pipe diamters, 1-1/4", 1-1/2" and 2".
Sewage check valves are of a somewhat different design than sump valves. They need to stand up to greater pressures, more corrosives and the presence of higher solids in the flow.