Armstrong unfired steam generators (USGs) are designed to produce pressurized clean steam using boiler steam or high-temperature hot water as an energy source. Typical uses for this clean steam include humidification, sterilization, pharmaceutical applications and food processing.
USGs are constructed and stamped in accordance with ASME code. All tanks are registered with the national Board of Boiler and Pressure Vessel Inspectors, and an insurance compliance certificate is furnished. Unfired steam generators that generate 50 psi (3.4 bar) or greater steam pressure will be 100% X-rayed in accordance with the ASME code.
Unfired steam generators from Armstrong are carefully designed to provide the correct balance of steaming area, coil size and control components to meet the specified requirements.
In addition, they include an over-pressure safety system that will shut the unit down if the power fails. This over-pressure safety system closes both the feed-water and source steam valves, shutting the unit off.