TJTC wins IAPMO UPC listing for underground piping couplings

Tianjin Tiancheng Pipeline Technology Co., Ltd. said its flexible transition couplings for underground piping systems have earned IAPMO R&T UPC certification, a credential widely used for plumbing and drainage products in North America. The listing could help TJTC expand sales to contractors, distributors and engineers across the U.S. and Canada.

Why it matters: - The IAPMO UPC listing gives TJTC a recognized certification for underground plumbing products used in North American construction markets. - The certification can help the company sell to municipal contractors, plumbing distributors and engineering firms that need code-compliant products for inspection and approval. - The listing covers a product category used in sewer, drain and waste systems where leak resistance and field fit are critical.

What happened: - Tianjin Tiancheng Pipeline Technology Co., Ltd. said its flexible transition couplings for underground piping systems received an IAPMO R&T UPC Certificate of Listing. - The certificate is valid from Oct. 2, 2026 through Oct. 2031. - The product is certified to CSA B602:20 and ASTM C1173-2022 standards. - TJTC is based in Tianjin, China.

The details: - IAPMO R&T is an ANAB-accredited product certification body. - The UPC, or Uniform Plumbing Code, is widely accepted by authorities having jurisdiction across the U.S. and Canada. - TJTC said the flexible transition coupling connects dissimilar buried pipes, including cast iron, PVC, HDPE and copper. - The coupling is designed to provide leak-tight sealing. - The product is also designed to handle minor misalignment, ground settlement and angular deflection. - TJTC said the couplings can be used in underground sewer, drain and waste piping systems. - The new listing adds to TJTC’s existing certifications, which include UL and FM approvals for fire sprinkler pipe hangers and couplings.

Between the lines: - The certification strengthens TJTC’s position in a market where code compliance can determine whether a product gets specified and installed. - The company is signaling that it wants to compete beyond China by aligning product testing and documentation with North American requirements. - TJTC is also using the listing to reinforce its broader quality-control message across multiple pipe coupling and support product lines.

What's next: - TJTC said the listing should support new construction, pipeline renovation and underground sewer repair projects. - The company is directing customers to request a catalog, technical datasheet and quotation from its sales team. - TJTC said it will continue upgrading its pipe coupling, No Hub Coupling and pipe support product lines for global markets.