When engineers and procurement teams search for ASTM D3350 HDPE pipe, they need more than just material compliance. They need a supplier that carries the complete product range and the reliable production capacity to support a project from design and delivery all the way through to installation.
At Puhui Industry, we offer one of the most comprehensive HDPE piping portfolios among Chinese manufacturers serving the American market. Our product line covers all major ASTM standards, including ASTM F714, ASTM D3035, ASTM D3350, AWWA C906 and AWWA C901.
That coverage ensures seamless specification compliance for municipal, industrial and fire protection systems, and it makes Puhui Industry a genuine one-stop sourcing partner for American-standard projects.
The following sections explain what that full range actually means in practice: the dimensions we produce, the fittings that match them, the capacity behind them, the field joining support we provide, and the certifications that allow the products to be specified worldwide.
What Can Customers Expect From Our ASTM Product Range?
Pipe Dimensions — From 2″ to 64″
We manufacture PE4710 HDPE pipe in diameters ranging from 2 inches (DN50) to 64 inches (DN1600+), covering virtually every standard size required in U.S. infrastructure projects.
Pressure ratings span DR7 through DR33, accommodating applications from gravity flow to high-pressure transmission.
Fittings — Complete Matching Portfolio
Beyond pipes, Puhui Industry produces a full range of injection-molded and fabricated HDPE fittings, including elbows, tees, reducers, flanges, stub ends and custom configurations.
Every fitting is designed to match our 445574C pipe dimensions, pressure ratings and material specifications. This ensures end-to-end system integrity without the need for multiple suppliers.
Application-Specific Product Lines — All Built to PE 445574C
HDPE water pipes — potable-grade, NSF 61 certified, built to 445574C
FM Approved HDPE fire protection pipes — certified under FM 1613, meeting 445574C material specifications
HDPE pipes for gold and copper mines — abrasion-resistant, chemically inert, PE4710-grade for harsh conditions
HDPE drainage and gas pipes — meeting municipal and industrial utility requirements
Massive Production Capacity: Built for Large-Scale and Time-Sensitive Projects
Product range alone is not enough. Project schedules demand manufacturing muscle.
Puhui Industry operates from a 68,000 m² ISO-certified campus with dedicated extrusion and injection-moulding workshops, delivering:
Total manufacturing capacity, including PVC lines: 200,000 tons per year
Flexible batch sizes, from small pilot orders to full container-load shipments
Rapid technical support, with engineering responses within 12 hours for specification or customization queries
Our on-site QA laboratory monitors every batch from raw material receipt to finished product packaging, ensuring full traceability and certified test reports for each shipment.
Every test report traces back to the 445574C specification, because compliance is not optional. It is our starting point.
Field Installation Support: Pipe Welding Machine and Joining Solutions
Supplying high-quality HDPE pipe is only half the equation. Successful project execution depends on proper field joining.
Puhui Industry understands that installation efficiency is as critical as material quality, which is why we provide comprehensive support for pipe welding machine selection and fusion procedures.
Whether your crew uses butt fusion, electrofusion or socket fusion equipment, our technical team offers guidance on welding parameters, heating times and joint inspection criteria, so that field joints achieve the same performance as the pipe itself.
We work with leading pipe welding machine manufacturers and can recommend the most suitable equipment for your project scale, from handheld electrofusion units for small-diameter repairs to heavy-duty butt fusion machines for 64-inch mainlines.
Proper fusion parameters are particularly critical for PE4710 HDPE pipe. The material’s high density and slow crack growth resistance demand precise temperature control and alignment during welding.
Our 12-hour technical response covers not only product specifications but also pipe welding machine setup and troubleshooting, helping contractors avoid costly delays and rework.
Certified for Global Markets: NSF 61, WRAS, FM and More
Full range and capacity mean little without supporting certifications. Puhui Industry holds product-level approvals from UL, WRAS, NSF, SAA, FM, AENOR, BV and CE, enabling our PE 445574C HDPE pipes and fittings to be specified across North America, Europe, Australia and beyond.
NSF/ANSI/CAN 61 — certified for potable water contact and compliant with the U.S. Safe Drinking Water Act
WRAS — approved for UK water supply systems
FM Approved (FM 1613) — verified for underground fire protection, with zero-maintenance service life exceeding 70 years
PE 445574C / PE4710 compliance — material performance defined by ASTM D3350, with an HDB of 1,600 psi at 73°F
American-Standard Tooling: A Capability Few Chinese Manufacturers Have
What truly sets us apart in China’s HDPE manufacturing market is our comprehensive American-standard tooling inventory, a capability shared by very few domestic manufacturers.
We maintain an extensive library of moulds for imperial-sized pipes and fittings across the full 2″ to 64″ range, eliminating the long lead times and high setup costs typically associated with custom tooling.
This enables a project to move from specification to production faster, with fewer barriers and greater cost reduction.
Coupled with our full-stack international certifications, we offer something rare in the domestic market: a Chinese manufacturer that can fully comply with American standards without compromise, from raw material traceability to finished product testing.
Cost Advantage Without Compromise
The result is a significant cost advantage, typically 30–50% below legacy global brands, delivered without sacrificing material quality, certification integrity or service responsiveness.
We achieve this through optimized supply chains, efficient production scales and our extensive in-house tooling, and we pass the savings directly to our customers.
When you choose Puhui Industry, you are not choosing a low-cost alternative. You are choosing a fully certified, full-range manufacturer with the tooling, the capacity and the global track record to deliver ASTM-compliant HDPE piping systems at a price that makes sense for today’s project budgets.
Full tooling. Full certification. Full value.
Conclusion
Contact Puhui Industry today for ASTM D3350 HDPE pipe, FM Approved HDPE fire protection pipes, or any PE 445574C-compliant piping solution.
Request certificates, batch test reports, pipe welding machine guidance, or engineering support for your next water main, fire loop, mine dewatering system or industrial pipeline.
We have the range. We have the capacity. We deliver full compliance.
FAQ
1. What is ASTM D3350?
ASTM D3350 is the standard specification used to classify polyethylene materials for plastic pipe and fittings. It defines properties such as density, melt index, tensile strength, hydrostatic design basis and slow crack growth resistance.
2. What does PE 445574C mean?
PE 445574C is a cell classification defined under ASTM D3350. It describes the performance characteristics of the polyethylene material commonly associated with PE4710 piping systems.
3. What sizes of PE4710 HDPE pipe does Puhui Industry supply?
Puhui Industry supplies PE4710 HDPE pipes from 2 inches to 64 inches, with pressure classes ranging from DR7 to DR33. Available dimensions depend on the applicable ASTM or AWWA standard.
4. Which American standards are available?
Our American-standard HDPE piping solutions can be manufactured according to ASTM F714, ASTM D3035, ASTM D3350, AWWA C906 and AWWA C901, depending on pipe size and application requirements.
5. Can you supply matching HDPE fittings?
Yes. We supply injection-moulded and fabricated elbows, tees, reducers, stub ends, flanges and customized fittings designed to match the pipe dimensions, material grades and pressure ratings.
6. Are your HDPE pipes suitable for potable water and fire protection?
We offer NSF/ANSI/CAN 61-certified HDPE pipes for potable-water applications and FM-approved HDPE piping solutions for underground fire-protection systems. Certification availability should be confirmed for the required size and pressure class.
7. Do you provide HDPE pipe welding machines?
Yes. We can recommend butt-fusion, electrofusion and socket-fusion equipment according to the pipe diameter, wall thickness, project size and installation conditions.
8. Can you provide certificates and batch test reports?
Yes. Relevant certificates, product specifications and batch test reports can be provided according to the selected product and order requirements.
