High-Quality PVC Wastewater Pipe Company & Quotes

Our PVC wastewater and drainage pipes are produced in strict compliance with ISO 4435, EN 1401-1, and ASTM D3034 standards. Diameters span DN 50 mm up to DN 800 mm, with wall thickness profiles calibrated for SDR 41, SDR 35, and SDR 26 classifications. Out-of-roundness tolerances are held strictly within ±0.4% at the socket to guarantee an airtight, watertight compression seal under ground loads.

Yes. One of HZXY’s core competitive advantages is mixed-material export engineering. Because we operate both large steel mill bases and plastic extrusion hubs in Daqiuzhuang, Tianjin, we regularly pack lighter, hollow PVC pipes directly within structural steel tubes or container top-spaces. This optimizes cargo container weight-to-volume ratios, drastically reducing total freight costs.

Every production batch leaves our facility with fully documented Mill Test Certificates (MTCs), including hydrostatic pressure test reports, Vicat softening temperature evaluations, and impact resistance curves. We actively facilitate inspection audits by international agencies such as SGS, BV (Bureau Veritas), Intertek, and Lloyd's Register prior to port container staging.

For export markets throughout the Middle East, Southeast Asia, and Africa where project inventories remain outdoors under extreme solar irradiance, we integrate rutile titanium dioxide (TiO₂) and hindered amine light stabilizers (HALS). This compounding prevents chalking, discoloration, and polymer embrittlement for over 24 months of direct exposure.

Standard white, orange-brown (RAL 8023), and graphite gray pipes are held in continuous rolling inventory. For custom colors, specific wall dimensions, or specialized printing markings, our tooling adaptation lead time is typically 7 to 14 days, supported by our in-house mold and extrusion tool engineering facility.

We operate fully under standard ICC Incoterms 2020 including FOB Tianjin, CIF destination port, CFR, and DDP for selected regions. Commercial transactions are supported via confirmed, irrevocable Letters of Credit (L/C at sight) or Telegraphic Transfer (T/T), managed directly by our dedicated export finance and trade documentation department.