Description

Double flange duckfoot bend elbow manufactured in ductile iron, designed for pump station discharge lines, vertical risers, and pipeline directional changes where structural support and flange connectivity are required.

Key Features

Integrated support base: Cast-in base foot provides structural anchoring point, eliminating the need for separate pipe supports or concrete cradles at directional change points.

Double flange configuration: Flanged connections at both inlet and outlet enable straightforward bolted assembly to adjacent valves, pumps, or pipeline sections.

Technical Specifications

Parameter	Specification
Product Name	DI Double Flange Duckfoot Bend
Size Range	DN100 - DN600
Material	Ductile Iron 500-7
Pressure Class	PN10/16/25
Flange Standard	ISO 7005-2
Coating Type	Epoxy, Bitumen
Bend Angle	90 degrees
Standards	ISO 2531, EN 545

Core Selling Points

Load distribution: Base design spreads vertical and horizontal thrust loads across a wider footprint, reducing point load stress on supporting structures.

Vertical riser application: Optimized geometry for pump discharge vertical rises, providing both directional change and structural support in a single component.

Corrosion protection system: Fusion-bonded epoxy internal and external coating (minimum 250 microns) or bitumen coating per ISO 8179, with drinking water compliant options.

Material durability: Ductile iron construction provides superior impact resistance and mechanical strength compared to cast iron alternatives.

Customizable drilling: Flange drilling patterns available to match EN 1092, ANSI B16.1, BS 4504, or other customer-specified standards.

Typical Applications

Pump station discharge headers where vertical to horizontal transition occurs

Pipeline vertical risers at river crossings or elevation changes

Industrial plant piping systems requiring anchored directional changes

Firewater pump suction and discharge lines

Water treatment facility inlet and outlet structures

Cooling water intake and discharge towers

Structural Function

The duckfoot bend serves as both a directional fitting and a pipe anchor, transmitting thrust forces from the pipeline into the supporting foundation, thereby eliminating separate thrust restraint devices at these locations.

Installation Steps

Prepare flange surfaces
Clean gasket areas
Position the fitting correctly
Align bolt holes properly
Insert suitable gaskets
Tighten bolts evenly
Check connection security
Test system operation

Standards Compliance

Design and manufacturing: EN 545 / EN 598 / ISO 2531 for ductile iron fittings

Flange dimensions: EN 1092-2 / ANSI B16.1 / BS 4504 / ISO 7005-2

External coating: ISO 8179 / EN 14901

Internal lining: Cement mortar per ISO 4179 or epoxy per EN 14901

Testing: EN 12266 / ISO 2531 Annex

Packaging Information

Protect flange faces
Use cushion materials
Bundle with steel strips
Place on wooden pallets
Cover waterproof material
Mark information clearly
Include installation manuals
Add quality certificates

After-sales Service

Provide 24-month warranty
Offer technical consultation
Supply spare components
Give installation guidance
Respond quickly
Solve problems efficiently
Accept customer feedback

Why Choose This Product

This Ductile Iron Double Flange Duckfoot Bend Elbow ensures reliable performance. It guarantees system efficiency. The product meets international standards. Professionals trust this specialized fitting.