Universal Ductile Iron Flange Adaptor Coupling Joint for HDPE PVC PE DCI DI Pipe
Brand TOPSUN
Product origin China
Delivery time 30 days
Supply capacity 10,000 tons per year
Our Universal Ductile Iron Flange Adaptor is the ultimate solution for creating robust, leak-proof connections between HDPE, PVC, PE, and Ductile Iron pipes. Its versatile design is engineered to simplify installations in municipal water supply, industrial pipelines, and sewage treatment plants, eliminating the need for complex flanging of thermoplastic pipes. This reliability is proven through our successful collaborations with major infrastructure projects across the globe, ensuring system integrity under varying pressures and conditions. Key features include its high-strength ductile iron construction and corrosion-resistant coating.
Backed by advanced research and development, this coupling incorporates a precision-engineered groove system and high-grade EPDM gaskets to ensure a perfect seal, even accommodating minor angular deflection. Our manufacturing facilities leverage state-of-the-art casting and CNC machining processes to guarantee consistent quality, dimensional accuracy, and high pressure ratings in every unit. This rigorous production control allows us to maintain exceptional performance standards batch after batch.
To meet urgent project timelines, we support our global sales network with a massive, ready-to-ship inventory of popular sizes and pressure classes. Our strong production capacity and efficient logistics ensure that you receive your order promptly, minimizing downtime. This operational excellence, combined with proven on-site performance, has made our flange adaptors a trusted choice for contractors and engineers worldwide, leading to consistently high sales volumes year after year.
PN10, PN16, PN25. Flange according to ISO2531/ EN545,/EN1092
Body | Ductile Iron GGG50/40 |
Gland | Ductile Iron GGG50/40 |
Gasket | EPDM according to EN681-1 |
Bolt &Nut | Galvanized carbon steel / hot dip galvanized steel/dacromet coating steel 4.8/8.8 grade |
Coating | Fusion boned epoxy more than 250 micron/ Rilsan Nylon |
| Item No. | Item Name | Material | Specification |
1 | Body | Ductile Iron | GGG50 |
2 | End Ring | Ductile Iron | GGG50 |
3 | Gasket | Rubber | EPDM or NBR |
4 | Bolt | Galvanized Steel | ISO898-1:1999 |
5 | Washer | Galvanized Steel | |
6 | Nut | Galvanized Steel | ISO898-2:1992 |
7 | Cap | Plastic |
The Universal Ductile Iron Flange Adaptor is engineered for superior performance and versatility in pipeline connections. Its core body is constructed from high-strength ductile iron, providing exceptional durability and impact resistance, significantly outperforming standard fittings. A critical feature is the integral, precision-machined stub end which ensures a perfect, flush connection with HDPE, PVC, or PE pipes, preventing internal turbulence and erosion.
The assembly incorporates a specially designed, pressure-responsive EPDM or NBR gasket. This gasket creates a robust, self-energizing seal that tightens under increasing internal pressure, guaranteeing a leak-free joint even under surge conditions. The heavy-duty, corrosion-resistant restraint rings and gland work in tandem with high-tensile steel bolts to provide full end-load restraint. This system effectively absorbs thrust forces from pressure, temperature changes, and soil movement, eliminating the need for thrust blocks in many applications.
Designed for universal compatibility, it seamlessly connects DI, DCI, steel, or PVC flanged equipment to plain-end thermoplastic pipes. This combination of rugged ductile iron construction, a reliable sealing mechanism, and full thrust restraint makes it the ideal, cost-effective solution for a wide range of municipal, industrial, and mining applications.
The Universal Ductile Iron Flange Adaptor is designed for a wide range of demanding piping scenarios across multiple industries. Its primary application is in municipal water and wastewater systems, where it is extensively used to connect HDPE or PVC mains to existing ductile iron (DI) or steel valves, hydrants, and pump stations. It provides a seamless transition between different pipe materials, simplifying repairs, tie-ins, and system extensions.
In industrial settings, these adaptors are crucial for process piping, plant intake and discharge lines, and slurry transport, offering a robust connection that can withstand vibration and pressure surges. They are equally vital in mining and dewatering projects for their ability to handle the harsh conditions and the joining of high-density polyethylene (HDPE) pipes used in these applications.
A key advantage is their use in directional drilling and pipe bursting projects, where a strong, restrained connection is needed to pull back HDPE pipes and connect them to flanged fittings. Furthermore, they are indispensable for emergency repairs, allowing for a quick and reliable fix to connect a new section of PE pipe to a damaged flanged section without requiring precise threading or welding, thereby minimizing downtime.
The Universal Ductile Iron Flange Adaptor Coupling Joint is a high-performance, versatile piping component engineered to create a secure, leak-proof, and fully restrained connection between dissimilar pipe materials. Its robust core is manufactured from high-grade ductile iron, offering superior strength and impact resistance compared to standard fittings.
The design features a flanged end, which bolts directly to any ANSI standard flange found on Ductile Iron (DI), Ductile Cast Iron (DCI), steel valves, or other flanged equipment. The opposite end is a specially engineered coupling socket, designed to receive plain-end thermoplastic pipes such as HDPE, PVC, and PE. A key component is the precision-machined internal stub end, which provides a smooth internal transition from the pipe to the fitting, minimizing turbulence, head loss, and potential for erosion.
The joint's integrity is ensured by a multi-component sealing and restraint system. A high-quality EPDM gasket creates a self-energizing seal that becomes tighter under increasing line pressure. This gasket is secured and activated by a durable, corrosion-resistant stainless steel restraint ring and a ductile iron gland. When the high-tensile carbon steel bolts are tightened, the system uniformly compresses the gasket onto the pipe's outer diameter while the restraint ring grips the pipe securely. This provides complete thrust restraint, effectively absorbing end loads generated by internal pressure and soil movement, thereby eliminating the need for concrete thrust blocks in most installations.
This combination of durable materials, a flawless sealing mechanism, and integral joint restraint makes this adaptor the ultimate solution for connecting modern thermoplastic pipes to traditional metallic piping systems across water, wastewater, industrial, and mining applications.
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.
