DAB Automatic Circulating Pump, Flanged, 4-41W, 110-127V, 900 GPH, Model EVOSTA2D 55

EVOSTA2 circulating pump range from DAB Pumps has a built-in electronic device that detects the changes demanded by the system, and automatically adapts the circulator performance accordingly. APPLICATIONS Low energy consumption electronic pump for hot water circulation in all types of domestic heating systems. TECHNICAL DATA Operating range: 0.8 – 15.1 gpm with head up to 18 ft. Pumped liquid temperature range: from +14 °F (-10°C) to +230 °F (110°C). Working pressure: 145 psi 10 bar (1000 kPa). Protection class: IP X5. (NEMA 4X ) Protected against jets of water. Insulation class: F. Installation: with horizontal motor axis. Standard power input: single-phase 1 x 110-127 V~ 60 Hz. Pumped liquid: Clean, free  of  solids  and  mineral  oils, non-viscous, chemically neutral, with properties similar to water (glycol max 30%). ADVANTAGES Thanks to the advanced technology employed, the permanent magnet synchronous motor and its electronic driver (also called ECM: Electronic Commutation Motor or BLDC motor: Brushless DC motor), the new range of EVOSTA2 circulators ensures high efficiency in all applications, with significant benefits in terms of energy saving. The circulator has a built-in electronic device that detects the changes demanded by the system, and automatically adapts the circulator performance, accordingly, always ensuring optimum efficiency and minimum energy consumption. The EVOSTA2 circulator is also suitable for replacing old three-speed circulators, both as far as size, as it has the same dimensions of the VA series, and for its capability of covering pumps with heads of up to 18 feet with one single model. It can also simplify the work of the user, thanks to a single sequential setting button and a breather plug used to degas the system and unlock the motor shaft if required. The EVOSTA2 circulators can operate in 3 different modes: • Proportional differential pressure • Constant differential pressure • Fixed curve CONSTRUCTION FEATURES • Pump body in cast iron • Motor casing in stainless steel • Motor casing cover in techno polymer • Motor shaft in ceramic (alumina) • IPX5: Protected against water jets