About Tianjin Junxing Pipe Group Co., Ltd - Plastic Pipe Supplier in China

Tianjin Junxing Pipe Group Co., Ltd is based in Tianjin, China and currently lists six distinct plastic pipe products in its catalogue. The catalogue includes items classified under HS Chapter 39, specifically HS 3917.21 for various HDPE and PPR pipes and HS 3917.23 for a PE‑RT/EVOH pipe. Materials cover High‑Density Polyethylene (PE100, PE80), Polyethylene of Raised Temperature resistance with an EVOH barrier, and Polypropylene Random Copolymer (PPR) type 3. The supplier’s top‑level category is recorded as Flanges, but the active listings focus on water, heating and specialized drainage pipe solutions.

The listed products comprise HDPE water pipes, double‑wall corrugated drainage pipes, dredging pipes with integrated floaters, PEX‑type pipe for water and under‑floor heating, a PE‑RT/EVOH barrier pipe for heating circuits, and PPR pipe with fittings. Typical industry specifications for these items include pressure ratings from PN 10 to PN 16, SDR values between 7.5 and 11 for HDPE, and compliance with standards such as ISO 4427 for drinking‑water polyethylene pipes and DIN 8077 for PPR. The PE‑RT/EVOH pipe is commonly produced to meet EN 14692 for under‑floor heating, while HDPE dredging pipes are often supplied with UV‑stabilised grades for prolonged outdoor exposure.

Product Range and Specialties of Tianjin Junxing Pipe Group Co., Ltd

The catalogue presents six concrete pipe types: PEX pipe for water and under‑floor heating (no HS code disclosed), HDPE pipe for water (HS 3917.21, PE100), HDPE double‑wall corrugated pipe (HS 3917.21, HDPE), HDPE dredging pipe with floater (HS 3917.21, PE100/PE80), PE‑RT/EVOH pipe for under‑floor heating (HS 3917.23, PE‑RT with EVOH barrier), and PPR pipe and fittings (HS 3917.21, PPR type 3). In the broader industry, HDPE water pipes are typically supplied in grades PE100 and PE80 with SDR 7.2‑9.5, conforming to ISO 4427‑2, while double‑wall corrugated pipes are used for storm‑water drainage with impact‑resistant outer walls. Dredging pipes often incorporate a buoyant floater and are graded for UV resistance. PE‑RT/EVOH pipes are chosen for their low oxygen transmission, meeting EN 14692 for under‑floor heating, and PPR pipe systems are widely used for hot‑ and cold‑water distribution under DIN 8077 specifications.

Trade and Export Information - Tianjin Junxing Pipe Group Co., Ltd

China is a major exporter of plastic pipe products, and shipments from Tianjin usually target Southeast Asian, Middle Eastern, African and European markets where infrastructure development drives demand for water and heating pipelines. HS 3917.21 and HS 3917.23 fall under the ‘tubes, pipes and hoses, of plastics’ heading, which commonly requires documentation such as a Certificate of Origin, material test reports, and compliance with ISO 9001 quality management. Importing countries often request CE marking or ASTM D3350 test results for polyethylene grades, as well as ISO 4427 water‑pipe certifications. Logistics from Tianjin typically involve loading 20‑foot containers with 18‑20 tons of pipe, using FOB Tianjin or CIF terms, and packaging the pipes in wooden crates or shrink‑wrapped bundles to protect against mechanical damage.

Sourcing from Tianjin Junxing Pipe Group Co., Ltd - Buyer Guidance

Buyers should request the latest material test certificates confirming PE100 or PE80 grade, melt flow index, density and pressure‑rating data for each HDPE product, and verify that the PE‑RT/EVOH pipe meets EN 14692 barrier performance. For the PPR pipe and fittings, ask for compliance certificates to DIN 8077 and a batch‑wise UV‑stabilisation report if the product will be used outdoors. It is prudent to obtain a sample of the pipe wall thickness and a short‑run test piece before confirming large orders, and to confirm the supplier’s ability to provide ISO 9001 certification, CE Declaration of Conformity, and any required local standard approvals.

What product codes and HS classifications apply to the HDPE pipes offered by Tianjin Junxing Pipe Group Co., Ltd?

The HDPE water pipe, double‑wall corrugated pipe, dredging pipe with floater and PPR pipe and fittings are classified under HS 3917.21, which covers tubes, pipes and hoses of plastics, while the PE‑RT/EVOH under‑floor heating pipe uses HS 3917.23 for other polyethylene products.

Which material grades are used for the HDPE pipe for water?

The HDPE water pipe is supplied in PE100 grade, with optional PE80, conforming to the pressure class PN 10‑PN 16 and typical SDR values between 7.2 and 9.5, meeting ISO 4427‑2 specifications for drinking‑water applications.

What standards should buyers verify for the PE‑RT/EVOH under‑floor heating pipe?

Buyers should check compliance with EN 14692 (under‑floor heating pipe systems) and confirm that the EVOH barrier provides the required oxygen transmission rate, typically ≤ 0.1 cc m‑2 day‑1 at 23 °C, along with a material test report for the PE‑RT grade.

Are certifications such as ISO 9001 or CE required for importing these plastic pipes?

While the supplier’s catalogue does not list specific certifications, most importing countries request ISO 9001 quality‑management certification and, for European markets, a CE Declaration of Conformity or test reports to EN or ASTM standards for the relevant plastic grade.

What packaging and container sizes are typical for shipping the listed pipe products?

Pipes are usually bundled in wooden crates or shrink‑wrapped bundles sized to fit standard 20‑foot containers (approximately 18‑20 tons) or 40‑foot containers for larger volumes, with end caps and moisture‑proof liners to prevent deformation during transit.

What documentation should a buyer request before placing an order?

Buyers should ask for a Certificate of Origin, material test certificates (including density, melt flow index, pressure rating), compliance certificates to ISO 4427 or DIN 8077 as applicable, and any relevant CE or ASTM test reports. A copy of the supplier’s ISO 9001 certificate is also advisable.

What is the typical lead time for producing and shipping these plastic pipe products from Tianjin?

Lead times vary by product but generally range from 4 to 8 weeks for standard HDPE and PPR pipes, with longer periods (up to 12 weeks) for customized PE‑RT/EVOH under‑floor heating pipes that require barrier layer processing.