VERTICAL CENTRIFUGAL MULTISTAGE ELECTRIC PUMPS IN STAINLESS STEEL

Extremely noiseless and reliable the vertical centrifugal multistage electric pumps of the series STVX have been designed to pump clean liquids, without abrasives and suspended solids, non-explosive or aggressive for the pump’s materials

• Liquid temperature not higher than 35 °C for domestic use (CEI EN 60335-2-41) or 120 °C for other use, while the ambient temperature must not be higher than 40 °C
• Maximum working pressure is 27 bar
• Flow rate up to ~ 84 m3/h
• Heads up to ~ 320 m

TECHNICAL FEATURES

• Motor bracket: cast iron G20 with anti-corrosive coating
• Diffusers: stainless steel Aisi 304 (Cast iron G20 with cataphoretic treatment version 30-45-65)
• Pump body: in precision-cast stainless steel Aisi 304
• Impellers: stainless steel Aisi 304
• Pump shaft: stainless steel Aisi 304
• Bushings: Tungsten carbide
• Mechanical seal: EPDM Graphite - Silicon Carbide

MOTOR

The control motors are asynchronous, squirrel cage-type, closed, with external ventilation

• Capacitor always on, for single-phase models
• The motor protection must be installed by the customer. Equipment compliant with current standards should be used
• Class of insulation:F-service:S1-Degree of protection: IP 55
• Terminal board protection: IP 55
• Dimension B14 up to 4 kW, dimension B5 starting from 5.5 kW
• The standard voltage is 230/400 V up to 4 kW, whereas it is 400/690 V starting from 5.5 kW