Double Flanged Duckfoot Bend Ductile Iron Cast Iron Pipe Fitting
Brand TOPSUN
Product origin China
Delivery time 30 days
Supply capacity 10,000 tons per year
Our Double Flanged Duckfoot Bend is a crucial Ductile Iron Pipe Fitting engineered for demanding water conveyance and infrastructure projects. Designed with a robust cast iron structure, this fitting excels in applications where pipeline direction changes require solid anchorage, such as in pumping stations and valve chambers. The integrated "foot" base provides stable support, effectively absorbing thrust forces and eliminating the need for separate concrete thrust blocks, which significantly simplifies installation procedures.
Backed by advanced casting techniques and rigorous quality control, our production facility ensures every component meets stringent international standards. We currently maintain a substantial inventory of these high-strength fittings, guaranteeing prompt delivery for both routine maintenance and large-scale pipeline expansions. With a proven track record in municipal water supply systems, our ductile iron fittings offer exceptional durability and corrosion resistance, ensuring a reliable and long-lasting pipeline network.
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 |
The Double Flanged Duckfoot Bend is a specialized pipe fitting engineered for demanding pipeline applications, particularly where reliable anchorage and directional change are required on horizontal surfaces.
Superior Material Strength: Manufactured from high-strength Ductile Cast Iron (per ISO 2531, EN 545, standards), this fitting offers exceptional mechanical properties. It provides the corrosion resistance of cast iron but with the added benefit of superior ductility and tensile strength, allowing it to withstand high operating pressures, heavy earth loads, and significant impact without fracturing.
Integrated Thrust Restraint: The defining feature of this fitting is the integrally cast "foot" or base. This base provides a permanent, built-in thrust block. By distributing the dynamic forces and unbalanced thrust (caused by changes in water flow direction) directly onto a concrete support or foundation, it eliminates the need for expensive, bulky, external concrete thrust blocks.
Secure Flanged Connections: The fitting features flanged ends on both the inlet and outlet, machined to standard drilling templates (such as PN10/16 ). These flanges provide a robust, gasketed, and leak-proof connection to valves, pumps, or other flanged pipe work, ensuring system integrity and allowing for easy disassembly if required.
Durable Protective Coating: To ensure a long service life in buried or exposed environments, the fitting is lined with a high-quality cement mortar to prevent tuberculation and maintain water quality. The external surface is protected by a tough metallic zinc coating followed by a bitumen or epoxy seal, offering excellent resistance to soil corrosion and atmospheric conditions.
The Double Flanged Duckfoot Bend is a specialized ductile iron pipe fitting engineered for critical applications in pressurized water transmission and fluid handling systems. Its primary function is to facilitate a directional change in a pipeline (typically 90 degrees or 45 degrees) while providing an immovable anchorage point to manage hydraulic thrust.
The defining feature of this fitting is its integral "foot" or base, cast directly onto the bend. This base incorporates pre-drilled bolt holes, allowing it to be securely anchored to a concrete thrust block or a structural foundation. By transferring the dynamic and static loads from the pipeline to the ground, the Duckfoot Bend effectively prevents joint separation and pipeline displacement caused by internal pressure, flow velocity, and water hammer.
Typical Applications Include:
Rising Mains: At the base of a pump station or rising main, where pipelines transition from horizontal to vertical. The fitting absorbs the tremendous start-up thrust and vibration from pumps.
Valve Installations: Located adjacent to heavy in-line components like butterfly or gate valves. It isolates stress on the valve body by anchoring the pipe on either side.
Change of Direction: In areas where soil conditions are unstable or where standard thrust blocking is impractical, the mechanical anchor provides a reliable engineering solution.
Vertical Drops: On steep terrain or at the inlet/outlet of reservoirs and tanks, the foot supports the weight of the vertical pipe stack and prevents settlement.
Manufactured from ductile iron, these fittings offer superior tensile strength and impact resistance compared to cast iron, ensuring long-term durability. The double-flanged ends allow for straightforward, secure bolted connections to valves, pumps, or other flanged pipe components, creating a rigid, leak-proof, and maintenance-free system ideal for municipal waterworks, industrial process lines, and irrigation infrastructure.
The Double Flanged Duckfoot Bend is a specialized and robust pipe fitting engineered for demanding pipeline applications where directional change and stable anchorage are required. Manufactured from high-strength Ductile Cast Iron, this fitting combines the corrosion resistance of cast iron with the superior mechanical properties of ductile iron, offering excellent tensile strength, impact resistance, and durability far exceeding that of traditional gray cast iron.
As indicated by its name, this fitting features a 90-degree bend (or alternative angles upon request) designed to alter the direction of flow within a piping system. What distinguishes the Duckfoot Bend is the integrally cast "foot" or base at the base of the vertical leg. This foot provides a critical structural function: it acts as a fixed point, transferring the thrust and mechanical forces generated by the pipeline—such as water pressure, earth load, and dynamic stresses—directly to a supporting concrete thrust block or foundation. This design effectively anchors the pipeline, preventing movement and eliminating the need for separate, bulky restraining systems in many installations.
The fitting is equipped with flanged ends at both openings (Double Flanged). These flanges are precision-manufactured to facilitate a secure, gasketed, and leak-tight bolted connection to corresponding flanges on pipes, valves, or other fittings. This allows for easy assembly, disassembly, and maintenance of the pipeline system. Common flange drilling patterns conform to international standards such as ISO 7005-2, EN 1092-2, or ASME/ANSI B16.1 (Class 125/250), ensuring compatibility with a wide range of industrial components.
Internally and externally coated with a protective epoxy or bituminous coating, the fitting is shielded against corrosion, abrasion, and chemical attack, ensuring a long service life even in harsh environments like water treatment plants, sewage systems, and industrial process lines.
Ideal for use at the base of vertical pumps, at pipe terminations, or in areas with unstable soil, the Double Flanged Duckfoot Bend provides a reliable, space-saving, and structurally sound solution for fluid handling systems.
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.
