Double Flanged 90 Degree Duckfoot Bend Ductile Iron Pipe Fittings
For demanding pipeline systems requiring a precise 90-degree directional change with the capability for direct, bolted connection to other flanged components, the Double Flanged 90 Degree Duckfoot Bend Ductile Iron Pipe Fitting is the engineered solution. This specialized fitting, often categorized alongside and sometimes used interchangeably with products like the Ductile Iron Double Flanged 90° Duckfoot Elbow, offers a unique combination of durability and installation efficiency. Its "duckfoot" or "long-radius" design, characteristic of a Double Duck Foot Flanged Bend, provides a gentle curve that minimizes pressure loss and turbulence within the flow, reducing wear on the system. When a more compact turn is necessary in constrained spaces, a Ductile Iron Double Flanged Short Radius 90° Bend serves as an alternative, though the duckfoot variant is preferred for its superior flow characteristics. Manufactured from high-grade ductile iron, these fittings offer exceptional strength, impact resistance, and longevity, making them a cornerstone in industrial, municipal water, and wastewater applications.
The Double Flanged 90 Degree Duckfoot Bend Ductile Iron Pipe Fitting is engineered to exacting standards to ensure seamless integration and reliable performance in high-pressure environments. Its flanged ends conform to international dimensional standards, ensuring compatibility with a wide range of pipes, valves, and pumps. The fitting's internal surface is typically cement-mortar lined or epoxy coated to provide superior corrosion resistance and maintain high flow efficiency over its service life. The exterior receives a robust bituminous or fusion-bonded epoxy coating for protection against external corrosive elements. Each fitting undergoes rigorous quality control and hydrostatic pressure testing to guarantee it meets or exceeds the specifications required for critical infrastructure projects.
Key Specifications & Technical Data
- Material: High-Grade Ductile Iron (Grade 500-7/450-10 per EN 1563 / ASTM A536)
- Design Standard: EN 545 / EN 598, ISO 2531, AWWA C110/A21.10, AS/NZS 2280
- Pressure Rating: PN10, PN16, PN25, PN40 (or Class 150, Class 250 per AWWA)
- Flange Standard: EN 1092-2 (PN10/16), AS/NZS 4087, AS 2129, BS 4504, ANSI B16.1
- Internal Lining: Cement Mortar Lining per EN 545 / AWWA C104, or Optional Epoxy/Polyethylene
- External Coating: Bituminous Paint, Fusion Bonded Epoxy (FBE), or Zinc Spray + Bitumen
| Nominal Diameter (DN) | Outside Diameter (mm) | Flange Diameter (mm) PN16 | Center-to-Flange Dimension A (mm) ~ | Approx. Weight (kg) |
|---|---|---|---|---|
| 100 | 118 | 220 | 330 | 24.5 |
| 150 | 170 | 285 | 420 | 45.0 |
| 200 | 222 | 340 | 520 | 78.0 |
| 250 | 274 | 395 | 630 | 118.0 |
| 300 | 326 | 445 | 740 | 170.0 |
| 400 | 429 | 565 | 970 | 310.0 |
| 500 | 532 | 670 | 1200 | 510.0 |
| 600 | 635 | 780 | 1440 | 780.0 |
Note: Dimensions and weights are approximate and based on standard PN16 configurations. Specific dimensions may vary slightly depending on manufacturing standards and pressure class. Gaskets and bolts are typically supplied separately based on project requirements.
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