A trap is a fitting that is used in sanitary appliances to prevent sewage and bad smell from entering the building and keep out vermin. The high‑quality effective traps made by Khuzestan Hose and Pipe Co. are made of uniquely formulated PVC raw materials with advanced molds and machinery to comply with INSO 9119‑1 and BSEN 1329‑1 standards. A trap should be designed to prevent sewage sludge buildup. This is achieved by the smooth protrusion‑free internal surface of the trap.
B: inside the building
BD: inside and outside the building