Industry
Piping components for power plants
Steam service is unforgiving of the wrong material. Main steam, reheat and feedwater lines need creep-resistant alloys and documentation to match.
- Product ranges
- 3
- Materials
- 3 families
- Product standards
- ASME B16.9, ASME B16.5, ASME B16.11
The requirement
What power plants demand of a fitting
Thermal power plants operate main steam and reheat circuits at temperatures where carbon steel loses strength. Chrome-moly alloy grades carry the creep resistance those lines require, and the material certificate is as much a part of the delivery as the fitting.
Feedwater, condensate and cooling circuits run cooler and are generally carbon steel, but they are large-bore and cycle constantly. Long-radius elbows and weld neck flanges are specified through most of that scope for fatigue and pressure-drop reasons.
Boiler-connected piping in India commonly falls under IBR, which brings its own inspection and certification requirements. Confirm the boundary of IBR scope for your plant before enquiring; it changes what has to be supplied with the goods.
IllustrationWhere these components sit
- Main steam and hot reheat lines in chrome-moly alloy
- Boiler feedwater and economiser circuits
- Condensate extraction and heater drain lines
- Cooling water headers and pump connections
- Instrument and drain connections in forged Class 3000 / 6000
Specification points that matter here
- Confirm whether the line falls inside IBR scope; it changes the certification required
- Alloy grade selection driven by design temperature, not pressure alone
- Long-radius elbows throughout large-bore steam and feedwater
- Weld neck flanges on thermally cycling lines; avoid slip-on
- Hydrostatic test certificates required before supply
Ranges for this sector
What we supply into it
The categories most often specified for this service. Every one carries the full range behind it.
- Buttweld FittingsButtweld elbows, bends, tees, reducers and caps welded end to end with the pipe, for a joint as strong as the pipe itself and a smooth, leak-free bore.View 14 products
- Forged FittingsSocket weld and threaded fittings machined from solid forgings, for strong, compact joints on small-bore, high-pressure lines such as drains, vents and gauge points.View 15 products
- FlangesFlanges that make a bolted, gasketed joint at equipment, valves and spool breaks, so a line can be opened again for isolation, inspection or replacement.View 22 products
Commonly specified products
The individual products this sector orders most often.
90° Elbow (LR & SR)Buttweld 90° elbows in long and short radius to ASME B16.9, in carbon, stainless and alloy steel, with dimension tables by material and class.View specifications
Pipe Bends (1D – 5D)Buttweld pipe bends in 1D, 1.5D, 3D and 5D radius to ASME B16.9, in carbon, stainless and alloy steel. 3D and 5D tables for mild steel.View specifications
Weld Neck FlangeWeld neck flanges to ASME B16.5, ASME B16.47 and EN 1092, including long weld neck, with tables for MS, carbon, stainless and Cr-Mo grades.View specifications
Concentric ReducerButtweld concentric reducers to ASME B16.9 for an in-line size change on a common centreline, in carbon, stainless and alloy steel.View specifications
Forged CouplingForged full, half and reducing couplings to ASME B16.11, socket weld and threaded, 1/8″ to 4″, Class 2000 to 9000.View specifications
Equal TeeButtweld equal (straight) tees to ASME B16.9 for three pipes of one size, in carbon, stainless and alloy steel, with dimension tables by class.View specifications
Standards that apply
Scope and key points for each are on the standards reference; dimensions and pressure classes are in the Technical Catalog.
Enquiries
Need components for Power Plants?
Send the line list, the isometric or the bill of materials and a sales engineer will come back with grades, availability and pricing against the standards above.