Centrifugal pump K series

waterwith asynchronous motorstationary

Overview
Close-coupled centrifugal electric pumps, single-impeller, series K, designed to pump clear liquids without abrasives or suspended solids; not suitable for liquids aggressive to pump materials.

Applications

• Water distribution and circulation in civil systems
• Integration into industrial machinery
• Small irrigation systems
• Filling and transfer of water in storage tanks

General performance

• Liquid temperature: up to 35 °C for domestic use (CEI EN 60335-2-41) or up to 90 °C for other uses; ambient temperature up to 40 °C
• Flow rate: up to ~18 m3/h
• Head: up to ~60 m

Technical features

• Pump body: cast iron G20 with anti-corrosive coating
• Motor bracket: die-cast aluminium UNI 5076 (cast iron for K 50, 150-550)
• Impeller: techno-polymer (stamped brass UNI-EN 12165 for K 150-550)
• Shaft: stainless steel Aisi 304 (Aisi 420 F for K 50-100)
• Mechanical seal: carbon-ceramic

Motor
Asynchronous, squirrel-cage motors, closed with external ventilation.

• Single-phase models: built-in motor protection and permanent capacitor
• Three-phase models: motor protection must be installed by the customer with compliant devices
• Insulation class: F
• Duty: S1
• Degree of protection: IP44
• Terminal board protection: IP54

Technical specifications

• Series: K (single-impeller, close-coupled centrifugal pumps)
• Designed for clear liquids without abrasives or suspended solids
• Liquid temperature limits: 35 °C (domestic CEI EN 60335-2-41) or 90 °C (other uses)
• Ambient temperature limit: 40 °C
• Maximum flow: ~18 m3/h
• Maximum head: ~60 m
• Materials: pump body G20 cast iron; motor bracket die-cast aluminium or cast iron for specified sizes; impeller techno-polymer or stamped brass for specified sizes; shaft Aisi 304 or Aisi 420 F for some sizes
• Mechanical seal: carbon-ceramic
• Motor type: asynchronous squirrel-cage, external ventilation; protection IP44 (motor) / IP54 (terminal board); insulation class F