An SWR system is only as good as the pipe type used in each part of it. Pawan Trading Company supplies SWR pipes and fittings out of Taloja MIDC to residential, commercial, and industrial projects across Navi Mumbai, stocking both pipe types the IS 13592 standard actually specifies rather than treating "SWR pipe" as one generic product.
Most buildings need both across different parts of the same drainage system — a main soil stack calls for Type B, while a rooftop rainwater downtake can run on Type A. Using Type A where Type B is needed is a common site-level mistake that shows up as premature pipe failure.
We stock the common building sizes — 75mm, 90mm, and 110mm, with 110mm typically used for main soil and drainage stacks — along with the fittings a complete system needs: bends, single and double tees, couplers, traps, and access/cleaning pieces. Sourcing pipe and fittings together avoids the mismatched-brand joint issues that show up when components are bought from different suppliers.
SWR piping handles soil discharge, wastewater, and rainwater both inside buildings and for external drainage and rooftop downtake — residential towers, commercial complexes, and industrial facilities across Navi Mumbai, Mumbai, and Thane. High-rise buildings in particular need correctly specified vertical stacks to avoid backflow and pressure issues across floors.
Type A has a thinner wall for ventilation and rainwater lines. Type B has a thicker wall for soil and waste discharge. Most buildings need both.
75mm, 90mm, and 110mm are most common, with 110mm typically used for main soil and drainage stacks.
Yes — SWR systems cover soil, waste, and rainwater discharge both inside buildings and for external and rooftop drainage.
Browse our full product catalog, or see our Supreme pipes and fittings range for the complete plumbing system. To confirm sizes and stock for your project, contact us directly or WhatsApp us.
