Ductile Iron Pipe Fittings & Valves

About DI Fittings

Taiyuan Water Industrial Co., Ltd (TAWIL) is a leading manufacturer of ductile iron castings based in Shanxi, China — a heavy industry zone rich in mineral resources.

Since 2002, we have specialized in OEM manufacturing of high-quality castings for drinking water, industrial water, and sewerage pipeline systems. All our products are 100% exported to international markets.

We strictly adhere to international standards including ISO2531, EN545/598, AWWA C110/C153, AS/NZ 2280, and JIS G5527, ensuring reliability and performance across DN40–DN2600mm sizes.

2002

Founded

100%

Export

Our Products

Comprehensive range of ductile iron fittings, valves, flanges, and accessories engineered for durability, precision, and compliance with global standards.

Quick PVC Flange

Adapter for connecting DI pipes to PVC systems. Ideal for fast installation and maintenance.

Flange Joint Fittings

High-pressure rated flanged connections compliant with ISO, AWWA, and EN standards.

Flange Adaptor

Flexible coupling solution for joining dissimilar pipe materials and diameters.

Gate Valve

Ductile iron gate valves with rising stems, suitable for isolation in water networks.

Ductile Iron Pipe

PU-coated external DI pipes for corrosion resistance in aggressive soil conditions.

Butterfly Valve

Wafer and lug type butterfly valves for flow regulation in water and wastewater systems.

Dismantling Joint

Allows quick disconnection for maintenance without cutting the pipeline.

Mechanical Joint Fittings

Push-on or mechanical joint fittings for rapid assembly in trench environments.

Tapping Saddle

Hot tapping clamps for live line connections without interrupting flow.

Manhole Cover & Grating

Heavy-duty ductile iron manhole covers and gully gratings for urban infrastructure.

Valve Box

Protective enclosures for underground valves, ensuring easy access and longevity.

Repairing Clamp

Emergency pipe repair solution for leaks and cracks under pressure.

Why Choose DI Fittings?

Certified Quality

Compliant with ISO, AWWA, EN, AS/NZ, and JIS standards for global acceptance.

OEM Manufacturing

Custom designs and project-specific solutions with full fabrication support.

Reliable Delivery

On-time shipment with efficient logistics for international clients.

Global Export

100% export-focused with trusted partnerships across continents.

Frequently Asked Questions

What standards do your products meet?

Our ductile iron fittings comply with ISO2531, EN545/598, AWWA C110/C153, AS/NZ 2280, and JIS G5527 standards.

Do you offer OEM services?

Yes, we specialize in OEM manufacturing and can produce custom designs based on project specifications.

What is your production capacity?

We have full fabrication equipment and molds for ductile iron fittings from DN40 to DN2600mm.

Are your pipes externally coated?

Yes, we offer PU (polyurethane) external coatings for enhanced corrosion protection in aggressive environments.

Get in Touch

Reach out for product inquiries, custom orders, or technical support.

Email: info@difittings.com

Phone: +86 136 5360 5447

WhatsApp: +86 186 3557 7007

Hours: Mon-Fri: 9:00 AM – 6:00 PM (China Time)

Address: No.186 Pingyang Road, Taiyuan City, Shanxi, China

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