MULTISTAGE CENTRIFUGAL ELECTRIC PUMPS

Extremely noiseless and reliable the multistage centrifugal electric pumps series STO have been designed to pump from basins or storage tanks, clean liquids, non-explosive or aggressive for the pump’s materials, without abrasives and suspended solids.

• Liquid temperature not higher than 35 °C for domestic use (CEI EN 60335-2-41) or 90 °C for other use, while the ambient temperature must not be higher than 40 °C
• Flow rate up to ~ 10 m3/h
• Heads up to ~ 70 m

TECHNICAL FEATURES

• Pump body: stainless steel AISI 304
• Suction flange: cast iron G20 with anti-corrosive coating
• Outlet bracket: cast iron G20 with anti-corrosive coating
• Diffusers: : Techno-polymer
• Impellers: stainless steel Aisi 304
• 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 54