SUPERHEATER & REHEATER

The fastest path to a quotation is a GA drawing or heat balance. If neither is available, we work from the following data:

• • Boiler type and fuel (coal, biomass, gas, oil, waste heat)
• • Steam flow rate (t/h), inlet and outlet pressure and temperature
• • Flue gas temperature entering the superheater section
• • Tube OD and geometry preference (if known)
• • Available space envelope — width, depth, height of the coil bank
• • Applicable design code (ASME Section I / GB/T 16507 / EN 12952)
• • New build or replacement — if replacement, existing drawings or dimensional survey data
• • Required delivery date or outage window

Material selection follows operating temperature, flue gas corrosivity, and design code:

• • Up to ~400°C — SA-210 A1/C carbon steel
• • 400–480°C — SA-213 T11 (1.25Cr-0.5Mo)
• • 480–540°C — SA-213 T22 (2.25Cr-1Mo)
• • 540–620°C — SA-213 T91 / T92 (9Cr-1Mo-V). Mandatory PWHT, normalising + tempering required
• • High-ash or corrosive environments — SA-213 347H, 321H, or TP304H austenitic SS

For biomass and high-alkali fuels, fireside corrosion risk can override pure temperature criteria — we factor this into the recommendation.

We require detailed interface drawings showing nozzle centerlines, support hanger positions, and clearance envelopes before fabrication begins. Our process:

• • Engineering review of your drawings to identify fit-up critical dimensions
• • If original drawings are unavailable — field measurement report or reverse-engineered sketch approved by you
• • Fabrication drawing submitted for your approval before production starts
• • Pre-shipment dimensional report confirming interface envelope against drawing

The dimensional report travels with the shipment so your site team can verify before lifting begins.

Standard documentation package included with every delivery:

• • Tube and header material EN 10204 3.1 Mill Test Certificates
• • Welding Procedure Specifications (WPS) and Procedure Qualification Records (PQR)
• • Welder qualification records
• • NDE reports — RT, UT, and PT/MT as applicable to the code
• • PWHT time-temperature record (where required)
• • Hydrostatic or pneumatic test report
• • As-built dimensional report
• • ASME Manufacturer's Data Report (where ASME scope)

Third-party witness inspection (SGS, BV, TÜV, Lloyd's) can be arranged on request.

Lead time is measured from drawing approval, not order placement. Typical ranges:

• • Small industrial superheater (carbon steel / T11, simple geometry): 8–12 weeks
• • Medium convective bank (T22, multi-row, standard geometry): 12–16 weeks
• • Complex radiant or T91/T92 scope (specialty alloy, PWHT, large assembly): 16–24 weeks

For planned outages, share your shutdown window at the enquiry stage — we build the production schedule backward from your required delivery date. For emergency replacements, contact us directly for expedited assessment.

Yes — ORL Power manufactures all major boiler pressure parts in the same facility, which means a coordinated package is straightforward rather than an exception.

• • Superheater + Reheater + Economizer (most common package)
• • Above + Steam Drum or Air Preheater
• • Full pressure-parts package including Water Walls and Headers

Package supply means a single technical interface, one inspection visit, consolidated shipping, and a single documentation package — reducing project coordination workload significantly.