Impeller pump STDM / STD series

waterelectricself-priming

THESE DOUBLE COUNTERACTING-IMPELLER PUMPS WITH AXIAL INTAKE AND UPWARD-FACING RADIAL DELIVERY ARE TYPICALLY USED IN APPLICATIONS REQUIRING HIGH DISCHARGE HEAD VALUES, PARTICULARLY IN INDUSTRIAL, AGRICULTURAL AND DOMESTIC APPLICATIONS. SCOPE OF APPLICATION: These double counteracting-impeller pumps with axial intake and upward-facing radial delivery are typically used in applications requiring high discharge head values, particularly in industrial, agricultural and domestic applications. It is recommended that these pumps are used to carry only chemically pure liquids and free of foreign matters, with temperatures not higher than 80°C. PUMP: Horizontal axis pump with bronze closed impeller, pump body and base support made of G20 cast iron, AISI 304 stainless steel shaft and mechanical seal made of ceramic/graphite. MOTOR: Electric, closed-type with external cooling fan, IP 44 safety class. F insulation. The standard versions of single-phase motors are fitted with termostat-controlled safety microswitches to avoid undesirable damages to the motor. The user must provide protection for three-phase electropumps. TENSION: STDM: 230-240 V. 50 Hz; STD: 230/400 V. 50 Hz. Different voltage and frequency ratings are available on request. APPLICATIONS: Domestic, Irrigation, Agriculture, Aqueduct, Car washing, Fire fighting, Industry