Layered Protection Against Sewage Backflow:Designed for connecting 3-inch PVC drains in the drainage system, this valve prevents the backflow of water in the pipeline due to pressure reduction or other potential causes.
Sturdy Durable Construction: Our back flow preventer valve can be solvent-welded for a watertight connection. The backwater valve is made of sturdy PVC for high impact strength and resistance to heat and corrosion.Even with frequent use, it can ensure minimal wear and tear.
Wide Applicability: due to the corrosion resistance and durability of the PVC material， The backflow valve, as part of the DWV system, is suitable for connecting PVC sewers and drains. Ideal for sewage disposal in household and certain industries, it prevents sewer backflow.
Baffle：Thickened rubber rings embedded in the water stop baffle guarantee a watertight seal, and the access cover is also sealed with EPDM rubber to prevent water leakage.
Easy to Use: backwater valves are generally simple in design, easy to install ; After installed, they function automatically without human intervention.