Ductile Iron Flanged Joint Pipe Fittings

Heavy-duty ductile iron flanged fittings for municipal and industrial pipelines. Available as bends, tees, reducers, crosses, and blind flanges. Match your pipe's lining and coating perfectly.

Seamless Integration with Your Ductile Iron Piping System
Our flanged fittings match your ductile iron pipes exactly. Same material grade. Same lining type. Same outer coating. Same flange drilling. Install with confidence. No surprises.

Ductile Iron Means You Never Risk Brittle Failure
Grey iron fittings crack under pressure or impact. Our fittings use ductile iron. Tensile strength exceeds 400 MPa. Elongation reaches 15%. The fitting bends before it breaks. Your pipeline stays safe.

Flanged Joints Give You Maintenance Access
Unbolt the fitting. Remove it. Replace it. No pipe cutting. No special tools. No pipeline shutdown for hours. Perfect for pump stations, valve connections, and equipment isolation points.

Complete Range of Fitting Types in Stock
Need a 90° bend? We have it. Need a 45° bend? We have it. Need a concentric reducer, an equal tee, a cross, or a blind flange? We have them all. DN50 to DN2000. PN10 to PN40.

Water Pump Stations – Flanged bends and tees connect pumps to discharge headers. Maintenance crews remove fittings easily for pump service.

Sewage Pump Stations – HAC-lined flanged fittings resist hydrogen sulfide corrosion. Polyurethane-lined fittings handle abrasive grit from sewage.

Water Treatment Plants – Flanged crosses and reducers create complex piping networks inside buildings. Assembly is fast. Modifications are easy.

Wastewater Treatment Plants – Flanged fittings at aeration basins, clarifiers, and digesters. Same linings as your EN 598 pipes.

Valve Manholes – Flanged tees provide branch connections for isolation valves. Blind flanges cap unused branches.

Industrial Cooling Water Lines – Flanged connections at heat exchangers, cooling towers, and chillers. Regular maintenance requires disassembly.

Face-to-face dimensions for bends and reducers follow ISO 5752 / EN 558 (Series 1 for PN16).

Tee lengths follow EN 545 / EN 598 standards.

Flange dimensions shown are for EN 1092-2 PN16. For ANSI / BS / JIS flanges, dimensions differ. Contact us for your standard.

Weights are approximate for ductile iron with cement mortar lining. Add 5-10% for epoxy or PU lining.

For ANSI Class 150 flanges (DN50-DN600), provide your flange standard and we supply matching dimensions.

Full-Face EPDM Gaskets (3mm) – Matches the entire flange face. Perfect for flat face flanges (BS 10, AS 4087). One gasket per flange connection.

Flat Ring Gaskets (3mm) – For raised face flanges (EN 1092-2, ANSI B16.1). Seals on the raised face only. Standard for European and US flanges.

Flange Bolt Sets (Grade 8.8) – Carbon steel with zinc plating. Includes bolts, nuts, and flat washers. Correct length for your fitting thickness. Thread size matches flange bolt holes.

Stainless Steel Bolt Sets (A2 or A4) – A2 (304) for fresh water. A4 (316) for salt water or chemicals. No rust. No staining on visible installations.

Fill fitting with clean water. Vent all air.

Pressurize to 1.5 times rated pressure (PN16 → 24 bar).

Hold pressure for minimum 60 seconds.

Inspect entire casting surface for leaks, sweating, or porosity.

Result: No visible water passage through the wall. No weeping at porosity.

Sample taken from each melt (heat) of ductile iron.

Cast into a test bar. Machined to standard shape.

Pull to failure in tensile test machine.

Requirement: 400 MPa minimum tensile strength, 15% minimum elongation.

Our results typically: 430-470 MPa, 16-18% elongation.

Each fitting permanently marked with: DN, PN, heat number, standard (EN 545 or EN 598), and manufacturer logo.

Marking must be legible and durable (not painted over).