SELF-PRIMING CENTRIFUGAL ELECTRIC PUMPS

The self-priming centrifugal electric pumps series STJC-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 ~ 4 m3/h
• Heads up to ~ 55 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
• Pump shaft: stainless steel Aisi 420F
• 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 54