UpsunPipe - Ductile Iron Pipes & Fittings Supplier | Shandong Upsun Industry Co., Ltd

About Shandong Upsun Industry Co., Ltd

Located in Shandong, China — home to one of the country's largest iron and steel industries — Shandong Upsun Industry Co., Ltd has been a leading manufacturer and exporter of ductile iron pipes and related products since 2010.

We specialize in producing ductile iron pipes, fittings, joints, valves, manhole covers, gratings, and accessories that meet international standards including ISO2531, EN545, EN598, DIN3352, ISO7005, EN10742, EN1092, and WRAS.

Our products are widely used in water supply and sewage systems and have been exported to Europe, the Middle East, Southeast Asia, Africa, and South America, earning a strong reputation for quality, competitive pricing, and excellent after-sales support.

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Our Products

High-quality ductile iron solutions for water supply, sewage, and infrastructure projects. All products meet international standards and are built for durability and performance.

Ductile Iron Pipe - T Type Joint

Standard joint type for water supply systems. Compliant with ISO2531, EN545, and DIN3352 standards.

• Pressure rating: PN10, PN16, PN25
• Sizes: DN80–DN2000
• Coating: Zn + bitumen or epoxy

Ductile Iron Pipe - K Type Joint

Mechanical joint ideal for quick installation and high-pressure applications.

• Suitable for underground installation
• Easy to assemble and disassemble
• Meets EN545 and ISO2531 standards

Self-Anchored Type Joint

No thrust blocks required. Ideal for directional changes and end stops.

• Eliminates need for concrete anchors
• Reduces installation time and cost
• Suitable for seismic zones

Sewage Water Ductile Iron Pipes

Designed for gravity and pressure sewer systems with enhanced corrosion resistance.

• Internal cement mortar lining
• External zinc + bitumen coating
• Compliant with EN598 standard

Ductile Iron Pipe Fittings

Elbows, tees, reducers, and flanges for complete pipeline systems.

• Available in T, K, and mechanical joints
• Sizes from DN50 to DN1200
• Custom designs available

Joints (All Types)

Comprehensive range of joints including T, K, mechanical, and flanged types.

• Rubber seals included
• High tensile strength
• Leak-proof performance

Valves (All Kinds)

Butterfly, gate, check, and air valves for water and sewage systems.

• Ductile iron body with epoxy coating
• ISO5752 and EN593 compliant
• Manual or actuated operation

Manhole Covers & Gratings

Heavy-duty cast iron and ductile iron covers for urban infrastructure.

• Load classes A–F (EN124)
• Anti-theft and anti-slip options
• Custom logos available

Manhole Cover Steps

Galvanized steel or ductile iron steps for safe access to underground chambers.

• Corrosion-resistant
• Easy to install
• Complies with safety standards

Surface Box (BS5834)

Surface boxes for water metering and valve access in paved areas.

• Ductile iron construction
• BS5834 and ISO9001 compliant
• Weather and tamper resistant

Accessories (Bolts & Nuts)

High-strength fasteners for joints, flanges, and valve connections.

• Galvanized or stainless steel
• Metric and imperial sizes
• ISO and DIN standards

Rubber Ring (ISO4633)

High-quality elastomeric seals for pipe joints ensuring leak-free performance.

• EPDM or NBR material
• Temperature range: -20°C to +80°C
• ISO4633 and WRAS approved

View All Products on Official Site

Frequently Asked Questions

What standards do your products meet?

Our ductile iron pipes and fittings comply with ISO2531, EN545, EN598, DIN3352, ISO7005, EN10742, EN1092, and WRAS standards.

Can you produce custom parts?

Yes, we can manufacture castings and forgings according to customer drawings or samples.

How do I install ductile iron pipes?

Installation involves cleaning the socket and spigot, placing the rubber ring, inserting the spigot, and verifying alignment. We provide technical guidance upon request.

What is the delivery time?

Typical delivery is 20–30 days after order confirmation, depending on quantity and destination.

Do you offer after-sales service?

Yes, we provide full after-sales support including technical assistance, documentation, and replacement parts.

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