Product overview
Ductile Iron Flat Flange
The Ductile Iron Flat Flange supports project-specific connection fabrication where ductile iron material and a defined drilling pattern are required. The pipe connection method, machining dimensions and welding or assembly procedure must match the approved design.
Flange component for compatible flexible-connection assemblies.
Technical reference
Technical basis for Ductile Iron Flat Flange
Nominal size and dimensions confirmed from the flange schedule. Reference pressure classes PN10, PN16 and PN25. Use these points to identify the right drawing—not as a universal rating for every configuration.
- Connection
- Flat or weld-flange form with project-selected drilling
- Material basis
- Documented ductile iron construction
- Reference range
- Nominal size and dimensions confirmed from the flange schedule
- Pressure / duty
- Reference pressure classes PN10, PN16 and PN25
Selection focus
Four checks for this ductile iron flat weld flange
- 1Provide DN, bore, outside diameter, thickness and drilling standard.
- 2Confirm pipe material and the intended connection or welding procedure.
- 3State pressure, medium, temperature and corrosion protection.
- 4Request a dimensional drawing before fabrication.
Installation notes for Ductile Iron Flat Flange
- The project engineer must approve the connection and fabrication method.
- Flange faces and bolt holes must be aligned without forcing the joint.
- Use the specified gasket, bolt grade and tightening sequence.
Choosing Ductile Iron Flat Flange
This is a rigid flange component, not a movement absorber. Compare it with rubber joints, compensators or flexible pipe only when defining the complete connection assembly; the flange itself is selected by dimensions, drilling, pressure class and fabrication method.
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Frequently asked questions
Ductile Iron Flat Flange FAQ
Which dimensions define a ductile iron flat flange?
Provide the nominal bore, outside diameter, thickness, bolt-circle diameter, hole quantity and hole diameter. Identify the flange standard and pressure class so the drilling can be checked against the mating component.
Is a ductile iron flat flange a flexible connection?
No. It is a rigid connection component and does not absorb pipeline movement. Any required vibration or thermal movement control must be provided by a separately selected flexible element and piping restraint design.
What fabrication information is required before ordering?
State the connected pipe material, joint or welding procedure, machining dimensions, coating and gasket requirements. Request an approved dimensional drawing before pipe fabrication begins.
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