Steam boilers and economizers to ASME I.
ASME Section I power boilers, waste-heat boilers, and economizer assemblies for power generation, geothermal, and industrial steam service.
- Code
- ASME I (S stamp)
- Steam capacity
- up to 120 t/h
- Design pressure
- up to 100 barg
- Design temperature
- up to 540 °C
- Fuels / heat source
- Natural gas, oil, coal, biomass, waste-heat
- Materials
- SA-516 Gr.70, SA-210 A1, SA-213 T11/T22, SA-335 P11/P22
What we build.
Water-Tube Boilers
D-type and bi-drum water-tube boilers for high-pressure steam.
Fire-Tube Boilers
Packaged 2- and 3-pass fire-tube boilers for industrial steam.
HRSG
Heat-recovery steam generators on turbine and engine exhaust.
Economizer Banks
Finned-tube economizer modules for flue-gas heat recovery.
Superheaters
Primary and secondary superheater coils to SA-213 alloy tubing.
Steam Drums
ASME I steam drums with internals (cyclones, baffles, demister).
Materials
- Drums and shells — SA-516 Gr.70 (post-weld heat treated)
- Boiler tubes — SA-210 Gr.A1
- Superheater alloy tubes — SA-213 T11 / T22
- Headers and piping — SA-335 P11 / P22
- Fins — carbon steel or 11Cr alloy for hot economizers
Welding & PWHT
- Tube-to-tubesheet expansion + seal weld per ASME I PG-79
- GTAW root + SMAW/SAW fill on header welds
- Full PWHT for SA-335 P22 and heavy-wall drum welds
- Documented WPS / PQR for every joint configuration
Witnessed. Documented.
Hydrotest
Full hydrotest per ASME I PG-99 with chart recorder.
Tube expansion
Pull-out and torque verification on every tube-to-tubesheet joint.
Refractory inspection
Cured-in-place refractory mapped and signed off before close.
PWHT records
Time-temperature charts archived against each weld map.
Recent deliveries.
Boiler Furnace & Steam Drum
Boiler furnace and steam drum supplied to PT Unilever Indonesia.
HRSG — FerTEZ
Heat-recovery steam generator fabricated for the FerTEZ project.
Furnace Boiler
Furnace boiler package delivered to Pelita Cengkareng.
Specifying a boilers & economizer? Start here.
Submissions routed directly to the senior engineering desk. Typical response under 24 hours.
Or download the datasheet template