Vertical Tube Universal Pressure Boiler (VTUP™)

Design features

A once-through boiler for supercritical applications, usually applied to systems with a capacity of 400 MW or larger; the design features a water-cooled dry-bottom furnace, superheater, reheater, economizer, and air heater components — designed for both base load and full boiler variable pressure load cycling operation as well as on/off cycling operation.

Capacity, steam output

From 2,000,000 lb/h (252 kg/s) to more than 10,000,000 lb/h (1260 kg/s)

Operating pressure:

Supercritical, usually at 3500 psi (24.1 MPa) throttle pressure with 5% overpressure; higher pressures available

Superheater steam temperatures

As required, currently in the 1100F (595C) range


Pulverized coal

Vertical Tube Universal Pressure Boiler

Primary Air Fan

Air Heater

Improves boiler performance.


Circulation Pump

Forced Draft Fan


Low NOx Burners

B&W has sold low NOx combustion systems for more than 120,000 MW of generating capacity in both new and retrofit boiler applications.

Overfire Air Ports


Selective Catalytic Systems

Air quality control systems designed to eliminate or reduce emissions from the flue gas stream.


B&W Roll Wheel Pulverizers

B&W has sold over 1,100 Roll Wheel pulverizers worldwide.

New Build

B&W Projects New Build
We consistently demonstrate the ability to successfully execute innovative solutions for our customers, from new equipment to large, complex full-scope engineering and construction projects.

Upgrades / Retrofits

Upgrades and Retrofits by B&W
Modifying, improving and maintaining existing equipment are vital considerations for the long-term viability and profitability of all operations.

Parts / Services

Babcock & Wilcox Parts and Service Support
An extensive network of worldwide regional service centers, field service engineers and technical support personnel are available to provide the customized service and aftermarket solutions for your requirements.