Description: Chemical feed equipment used in industrial and commercial boiler systems and sold as a unit consisting of agitators for circulating liquid, pumps, pump motors, chemical tanks, frames and supports for the system, gauge glass, valve fittings, strainers for drains and liquid lines, valves for regulating boiler and boiler pipe pressure, boiler pipes and boiler pipe lids, and parts for all of the foregoing | Diagnostic annunciators for use on industrial burners and boilers; computerized and non-computerized burner controls, computerized and non-computerized boiler controls, temperature controls, and programmable logic controllers for use on industrial boilers and burners; oxygen trim systems consisting of oxygen trim sensors, temperature and pressure controls and annunciators for use with combustion equipment, namely, industrial burners and parts therefor; industrial burner control systems sold as a unit consisting of oxygen trim sensors and controls, burner controls and boiler controls and parts for all of the foregoing | Gas, oil, combination gas/oil, propane and alternative fuel burners for industrial and commercial use; boilers for industrial and commercial use; industrial and commercial heating boiler feed-water systems comprised of a boiler pump, boiler motor, pump control valve, pipes, receiving tank, gauge glass, thermometer, flow and pressure gauges siphon, shut-off cock, starter switch and programmable logic controller, all sold as a unit; water softening and conditioning units using ion exchange technology for industrial and commercial use; dealkalizers; demineralizers; water filtering units for industrial use; de-aerators for use on industrial and commercial boiler systems; blowdown heat recovery units used to recover heat and remove solids during the water treatment process; interconnecting pipes for industrial and commercial boilers; water surge and flash tanks for industrial and commercial boiler systems; industrial steam and water separators for purifying flow in industrial and commercial boiler systems; water softening units for industrial and commercial boilers; economizers, namely, devices for pre-heating feed water in heating boilers
