Drainage Pipe

A drainage pipe does a different job from a pressure pipe — it isn't pushing water, it's letting gravity carry it away quietly, without odour escaping back up the stack or sunlight degrading the pipe where it runs exposed on an external wall.

WorldFlow manufactures its SWR — Soil, Waste and Rainwater — drainage range to IS 13592, covering both Type A (ventilation) and Type B (soil and waste) duty, in ring-fit (EPDM-sealed) and solvent-pasting variants. The compound is UV-stabilised, so stacks that run along an exterior wall don't turn brittle or chalky over time.

The full system — pipes, bends, tees, traps and cowls — is manufactured to work together, so a drainage drawing can be executed end to end from one matched range instead of mixing suppliers at each joint.

Used across residential soil and waste stacks, terrace rainwater drainage, and commercial building systems. Share your building's floor count and stack layout and we'll help size the run.