SELF-PRIMING ELECTRIC PUMPS 2 IMPELLERS
The self-priming centrifugal electric pumps series STJ have been
designed to pump clean water from wells, even if mixed with gas
• Maximum suction up to 8-9 m
• Liquid temperature not higher than 35 °C for domestic use (CEI
EN 60335-2-41) or 60 °C for other use, while the ambient
temperature must not be higher than 40 °C
• Flow rate up to ~ 9 m3/h
• Heads up to ~ 60 m
TECHNICAL FEATURES
• Pump body: cast iron G20 with anti-corrosive coating Motor
bracket in die casting aluminium UNI 5076
• Diffuser, Nozzle & Venturi tube: Techno-polymer
• Impellers: Techno-polymer (stamped brass UNI-EN 12165
available on demand)
• Pump shaft:: stainless steel Aisi 304
• Mechanical seal: carbon-ceramics
MOTOR
The control motors are asynchronous, squirrel cage-type, closed,
with external ventilation
• Incorporated motor protection and capacitor always on, for
single-phase models
• The motor protection for three-phase models must be installed by
the customer. Equipment compliant with current standards should
be used
• Class of insulation: F-service:S1-Degree of protection: IP 44
• Terminal board protection: IP 54LM100924
