Boiler
Steam Drum
Supplier
Custom boiler steam drums for CFB, coal-fired, biomass and HRSG applications. SA-516 Gr.70 material. ASME S certified — factory direct from Jiangsu, China.
What Is a Boiler Steam Drum?
The Heart of
Every Water Tube Boiler
The steam drum is the central pressure vessel that separates steam from water, houses the steam-water separation internals, and connects the boiler's circulation system. Every water tube boiler has one.
Steam Drum (汽包)
Upper drum — steam-water separation
- Cylindrical pressure vessel with dished heads — houses steam separation internals
- Connects downcomer tubes (water down) and riser tubes (steam-water mixture up)
- Internal separators, chevron dryers, and feedwater distribution pipes supplied as required
- Shell plate: SA-516 Gr.70 and equivalent — material grade confirmed per code and design pressure
- PWHT (post-weld heat treatment) standard on all pressure joints
Supplied with
Shell + Heads + Nozzles + Internals + Support Saddles + Full Documentation
Mud Drum (水包)
Lower drum — sludge collection & blowdown
- Lower pressure vessel that collects sludge, scale and blowdown from circulation water
- Connects to steam drum via downcomers and to water wall / generating tubes via risers
- Smaller diameter than steam drum — same pressure class, same code compliance
- Blowdown nozzles, inspection ports, and chemical dosing connections included
- Often supplied as a pair with the steam drum for complete boiler circulation system
Can be supplied as
Steam Drum only · Mud Drum only · Steam + Mud Drum pair
Need both drums or have a non-standard configuration? Send us your boiler drawings — we'll assess within 24h
Industrial Applications
Your Boiler Type,
Your Industry
ORL Power steam drums are engineered for industrial boilers and power generation across all major fuel types and applications.
CFB Boiler
Circulating Fluidized Bed
High-pressure steam drums for CFB boilers operating on coal, biomass or waste fuel. Designed for high-cycling, variable-load operation.
Coal · Biomass · Waste-to-Energy
Power Plant
Thermal Power Station
Large-diameter steam drums for pulverized coal and oil-fired power plants. ASME Section I compliance with NDT per code requirements.
Power Plant · Grid Supply · Cogeneration
Biomass
Biomass & Bagasse Boiler
Steam drums for bagasse cogeneration and wood-chip fired boilers. Corrosion-resistant internals for high-moisture, high-chloride steam conditions.
Sugar Mill · Wood Chip · Agricultural Waste
HRSG
Heat Recovery Steam Generator
Multi-pressure steam drums for combined-cycle HRSG systems. Designed for gas turbine exhaust temperatures with ASME Section I compliance.
Combined Cycle · Gas Turbine · Cogeneration
Industrial
Industrial Process Boiler
Steam drums for process industry boilers in chemical, petrochemical, paper and textile applications. Custom nozzle layouts per P&ID drawings.
Chemical · Petrochemical · Paper · Textile
Retrofit
Replacement & Retrofit
Drop-in replacement steam drums matched to existing nozzle layouts and support saddle positions. Old drawings or site measurements accepted.
OEM Replacement · Upgrade · Shutdown Window
Technical Specifications
Standard Technical
Parameters
All parameters are indicative. Custom specifications available on request — share your boiler datasheet and we'll confirm feasibility within 24 hours.
| Parameter | Value / Range |
|---|---|
| Design Pressure (MAWP) | Per project design — subject to engineering review |
| Design Temperature | Per project design — subject to engineering review |
| Shell Material | SA-516 Gr.70 and equivalent — per pressure class and code |
| Head Material | SA-516 Gr.70 and equivalent (ellipsoidal or hemispherical) |
| Shell ID Range | Ø800 mm – Ø2,000 mm (custom) |
| Shell Length | Per boiler drawing (typically 4–16 m) |
| Wall Thickness | Calculated per ASME Sec. I / per code; PWHT standard |
| Nozzle Connections | Downcomer, riser, steam outlet, feedwater, blowdown, gauge, vent — per P&ID |
| Internals | Cyclone separators, chevron dryers, feedwater distribution pipes (as required) |
| Applicable Standard | ASME Section I (PG-67 through PG-72) |
| Material Certification | EN 10204 3.1 MTC standard |
| NDT | RT per code / UT / PT / MT |
| Hydrostatic Test | 1.5× MAWP per ASME Sec. I |
Technical Parameters
Need a specific pressure class, non-standard diameter, or special alloy? Share your boiler datasheet, P&ID, or existing drum drawings — our engineering team will assess and respond within 24 hours.
Factory & Certifications
Real Factory,
Real Certifications
Complete manufacturing control in Jiangsu, China. Every steam drum is fabricated, tested and documented at our own facility.
Export Project References
Biomass Boiler Steam Drum
Philippines · 2022
Custom steam drum for bagasse cogeneration boiler. Export project with Bureau Veritas third-party inspection.
CFB Power Plant Steam Drum
130 t/h · 9.8 MPa · 2020
High-pressure drum for 130 t/h CFB boiler. SA-516 Gr.70 shell, full PWHT, RT weld examination.
Metallurgical Waste Heat Boiler
Korea · 2018
Steam drum delivered as part of a pressure-parts package — coordinated with economizer and superheater scope.
International Certifications
Grade A Boiler
ISO 9001
ASME S
ASME U
EN 3834
EN 1090
ISO 14001
ISO 45001
Jiangsu Province, China · 2 hours from Shanghai Port
Customers from 20+ countries visit annually · Full export documentation & logistics support · 10+ years international supply track record
How We Work
From Inquiry
to Delivery
A clear, transparent process — from first contact to drum on site. Full documentation and no surprises at every step.
Send Inquiry
Share your requirements
Send us your boiler type, steam capacity, design pressure and temperature, applicable standard, and nozzle schedule if available. Drawings, P&IDs, or existing drum datasheets welcome. → We reply within 24 hours
Engineering Review
Drawing & design assessment
Our engineers review your drawings and boiler data. We confirm shell diameter, wall thickness calculation, nozzle layout, head type, PWHT requirements, and material grade. If drawings are missing, we can work from parameters and existing drum datasheets. → Engineering review within 2–3 business days
Quotation
Detailed commercial offer
We issue a detailed quotation covering material grade, fabrication scope, PWHT and NDT requirements, certification, delivery terms (FOB Shanghai / CIF your port), and lead time. QCP / ITP available for projects requiring third-party inspection. → FOB / CIF pricing, full scope of supply
Production & QC
Fabrication with full inspection
Shell rolling, head forming, nozzle welding (certified welders, ASME IX), PWHT in furnace, radiographic testing (RT) per code requirements, hydrostatic pressure test at 1.5× MAWP. Dimensional report issued against approved drawings. → EN 10204 3.1 MTC · RT per code · Hydro test records
Delivery
Export packing & shipment
Drum is cleaned, nozzles capped, and packed for sea freight (open-top container or flat rack for oversized drums). Full export documentation: commercial invoice, packing list, certificate of origin, MTC, test reports, and BL coordination. → Shanghai Port · Global export · Full documentation package
Get Started
Request a Quote
Share your boiler details — our engineering team will review and respond within 24 hours.
Direct Contact
For a faster, more accurate quote, share:
- › Boiler type & fuel (CFB / coal / biomass / HRSG)
- › Steam capacity & design pressure / temperature (MAWP)
- › Applicable standard (ASME / GB / other)
- › Shell diameter, length, and nozzle schedule if available
- › Delivery port & target timeline
Request Project Quote
The more detail you share, the faster we can respond.