English Boiler D-Type industrial package watertube boilers have capacities ranging from 10,000 lb/hr to 250,000 lb/hr. The design has even weight distribution and smaller physical dimensions than competitive offerings to simplify transportation and installation.

Wasteheat Steam/Hot Water Generators

High Temperature Hot Water

Williams & Davis provides the complete package; pressure vessel, integral burner and controls including leading water level control and temperature regulating technologies. All 2-, 3-, and 4-pass dry and water-back units are factory fire tested and shipped as an integrated package.

Williams & Davis Thermal Fluid Heaters utilize a 3-pass design allowing for high fluid velocities and low film temperatures. The heaters are available from 2,400,000 BTU/hr to 50,000,000 BTU/hr output and maximum operating temperatures to 750°F (340°C) .

Williams & Davis Electric boilers are extremely efficient with totally immersed heating elements and a fully insulated pressure vessel, resulting in minimal radiation losses. The carefully calculated heat to steam ratio means operating pressures are achieved quickly and with maximum efficiency.

Biomass and waste streams from factories, homes, universities and state and federal government that were once routed to landfills, can provide the fuel to create the energy to produce combined heat and power at up to 50% the cost of site-assembled components.

The Atlas Series boiler or water heater combines solid engineering and innovative design with the highest quality components in the industry. With thermal efficiencies up to 98%, and modulation up to 7.5:1 turndown, the Atlas offers high performance, ultra low NOx operation.

Ajax manufactures the inclined watertube boilers in sizes from 150,000 to 21,000,000 Btu/hr and for maximum pressures and temperatures of 125 psig/250°F or 150 psig/370°F. The Ajax inclined watertube boiler has earned its bullet proof reputation and is designed to last for many decades.

Ajax manufactures steam boilers in sizes from 6 to 300 boiler horsepower and for maximum pressures of 15 psig or 150 psig. The Ajax steam boiler has earned its bullet proof reputation through its rugged carbon steel construction and generous water volume and is designed to last for many decades.