A Durable Make-up Steel receiver boiler feed unit for water temperatures up to 200°F and for boiler capacities typically ranging from 20 BHP up to 300 BHP. A 3/16" thick or thicker, black steel receiver is provided as standard for years of service; receiver sizes range from 21 gallons to 235 gallons. Unit is floor-mounted allowing for low inlet returns.
An electrical solenoid make-up water valve with float switch control is standard. Unit built in either simplex or duplex configurations with single-phase or three-phase motors; motors available at both 1750 RPM or 3500 RPM for low inertia, intermittent operation. Two pump openings provided on all units. Pumps are bronze-fitted to resist corrosion and prevent seizing; pump also equipped with mechanical seals rated for temperatures up to 250°F. Higher temperature seals and special faces available upon request.
Other accessories include gauge glass assembly, thermometer, inlet strainer, butterfly isolation valve, low-water cut-off or alarm switch, submerged heater tube for preheating feed water, electrical control panels and tank insulation.
Type DMES is simply an elevated version of DMS.