Ductile Iron DI DCI Push-on on Joint (Tyton Joint) flange socket pipe Fitting
Brand TOPSUN
Product origin China
Delivery time 30 days
Supply capacity 10,000 tons per year
Ductile iron push-on joint (Tyton joint) pipes and fittings are extensively used in potable water transmission, sewage systems, and firefighting networks. Their robust socket design ensures rapid installation and a reliable seal, significantly reducing project timelines. These corrosion-resistant components are ideal for both urban infrastructure and industrial pipeline projects, ensuring long-term durability.
Our advanced foundry technology enables precise metallurgical control, producing DI fittings that meet or exceed international standards. With an annual production capacity exceeding 50,000 tons and a comprehensive inventory of flange sockets and bends, we ensure prompt delivery. From large municipal contracts in Southeast Asia to rural water projects in Africa, our fittings perform reliably under diverse conditions.

Model Number | ductile iron pipe fitting |
Standard | ISO2531/EN545/EN598 |
Application | pipeline fitting |
Shape | Round |
Hardness | 230HB |
Pipe Wall Thickness | K7/K8/K9/K12 |
Pull Strength | >420MPa |
Yield (≥ MPa) | 300 MPa |
Material | Ductile Iron |
Type | Casting |
Processing Service | Welding, Bending, Punching, Decoiling, Cutting |
Certification | ISO2531:1998 |
Test | 100% Water Pressure Test |
Transport | Bulk Vessel |
Delivery | In Container |
Inner lining | Ordinary Cement |
Our Ductile Iron (DI) fittings, utilizing the renowned Push-on Tyton Joint system, offer an industry-leading combination of strength, durability, and installation efficiency. Manufactured from high-strength Ductile Cast Iron (DCI), these components provide superior mechanical properties compared to traditional cast iron, including exceptional tensile strength, impact resistance, and ductility, ensuring long-term reliability under demanding conditions such as high pressure, heavy traffic loads, and deep burial.
The defining feature of this system is the Push-on Tyton Joint. This self-centering, single-gasket design allows for rapid and straightforward assembly. Installation is simple: after cleaning the socket and spigot, and lubricating the standard rubber gasket (which is pre-seated in the socket groove), the plain pipe end is pushed firmly into the socket. This eliminates the need for skilled labor or heavy bolting equipment, dramatically reducing installation time and labor costs. The compressed gasket creates a permanent, leak-tight, and flexible seal that accommodates ground movement, vibration, and expansion/contraction without sacrificing integrity.
Available in a comprehensive range of configurations—including bends, tees, reducers, and flanged socket pieces—these fittings are universally compatible with standard DI pipes. Internally and externally coated with a high-quality zinc primer and a bituminous or epoxy finish, they provide excellent corrosion resistance for a prolonged service life. Ideal for water transmission, sewerage, and industrial applications, these fittings deliver a reliable, efficient, and cost-effective piping solution.
Our Ductile Iron (DI) Push-on Joint (Tyton Joint) fittings are engineered as the ideal components for a vast array of modern fluid handling infrastructure projects. Their superior strength, proven joint integrity, and long-term durability make them the preferred choice for critical pressure pipeline systems worldwide.
The primary application for these fittings is in potable water transmission and distribution networks. The Push-on Tyton Joint provides a reliable, self-sealing, and flexible connection that is perfect for buried mains, ensuring a safe and hygienic barrier against external contaminants while accommodating soil settlement and dynamic loads. They are also widely specified for sewerage and wastewater systems, where their leak-tight performance is essential for preventing exfiltration and protecting groundwater.
Beyond water and wastewater, these robust fittings are extensively utilized in industrial process piping, firefighting mains, and raw water intake lines. Their high strength and resistance to pressure surges make them suitable for demanding environments, including installation under roads and railways where heavy traffic loads are a factor. Available in a full range of configurations—such as bends for changing direction, tees for branching, and reducer pieces for diameter changes—they offer maximum design flexibility. Whether for municipal utilities, rural water schemes, or industrial plants, these Tyton joint fittings deliver the proven performance and longevity required for a reliable, low-maintenance pipeline network.
Ductile Iron (DI / DCI) Push-on Joint Fittings represent the industry standard for reliable, high-pressure water transmission and sewage systems. Engineered for a perfect balance of strength and flexibility, these fittings combine the metallurgical benefits of ductile iron with a user-friendly jointing system.
Manufactured in accordance with ISO 2531, EN 545, and AWWA C110/A21.10 standards, our fittings feature a heavy-duty flange on one end and a socket designed for the Tyton push-on joint on the other. This hybrid design allows for a rigid, bolted connection on the flange side while providing a flexible, self-anchoring joint on the socket side, simplifying installation in tight spaces where traditional mechanical joints are impractical.
The Tyton push-on joint utilizes a simple, single gasket system. The recessed socket cavity accepts a standard ribbed gasket, which is compressed radially against the plain pipe end during assembly. This creates an immediate, hydrostatic seal that is resistant to blow-out, subsoil corrosion, and vibration. No lead pouring or bolt tightening is required, drastically reducing installation time and labor costs compared to older jointing methods.
Key Features & Benefits:
Superior Material: Made from high-strength Ductile Cast Iron (Grade 500-7 or higher), offering excellent ductility and impact resistance, outperforming traditional cast iron.
Dual Connection: One end provides a flanged connection for valves, pumps, or other flanged equipment, while the opposite end offers a push-on socket for quick pipe insertion.
Efficient Sealing: The push-on joint utilizes a NBR (Nitrile) or EPDM gasket (NSF/ANSI 61 certified for potable water) that seals tighter as internal pressure increases.
Corrosion Resistance: Internally lined with Portland cement (or high alumina cement per request) and externally coated with a zinc-rich paint plus bitumen topcoat, ensuring long service life in aggressive soil conditions.
Easy Assembly: The socket entry is tapered for easy pipe insertion, and the joint allows for angular deflection to accommodate ground settlement or changes in direction.
Applications:
Water treatment plants (connecting flanged equipment to buried lines).
Pump stations and valve chambers.
Long-distance water mains and sewer force mains.
Industrial pipeline systems requiring a leak-tight, durable connection.
Choose our Ductile Iron Push-on Joint Flange Socket Fittings for a maintenance-free, pressure-tight solution that guarantees decades of reliable service.
CUSTOMERS & MARKET

Q: What's your qualification in this product ?
A: We have been engaged in this industry for decades with seasoned export team. All the product is strictly conformed to the international standard ISO2531:1998,EN545-2002 and other related standard.
Q: How long is your delivery time ?
A: Generally it is 5-10 days if the goods are in stock. or it is 20-30 days if the goods are not in stock, it is according to quantity.
Q: What's your terms of payment ?
A: 30% T/T in advance , balance before shipment or against L/C . And D/P , D/A ,L/C for free options.
Q: What's your trade terms ?
A: FOB , CIF , CFR as per client's requirements.
If you have any other questions , please feel free to contact us.








