Centrifugal pump CN series

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Overview
The normalized centrifugal monobloc pumps CN are built to DIN 24255 (UNI EN 733) standards. They are intended for pumping clean liquids without abrasives or suspended solids and for applications where the pumped fluid is non-explosive and non-aggressive toward pump materials.

Main performance

• Liquid temperature: up to 35 °C for domestic use (CEI EN 60335-2-41) or up to 90 °C for other applications
• Ambient temperature: maximum 40 °C
• Flow rates: up to 240 m3/h
• Heads: up to 100 m

Technical features

• Pump body: cast iron G20 with anti-corrosive coating
• Motor bracket: cast iron G20 with anti-corrosive coating
• Inlet/outlet ports: according to DIN 2532
• Impeller: cast iron G20 with cataphoresis treatment; brass impeller for 32-160A and 32-160B models
• Threaded counter flanges: galvanized steel with EPDM gaskets
• Pump shaft: stainless steel AISI 304
• Mechanical seal: carbon-ceramic

MOTOR
Drive motors are asynchronous squirrel-cage type, closed with external ventilation.

• Single-phase models: incorporated motor protection and permanently connected capacitor
• Three-phase models: motor protection to be installed by the customer; use equipment compliant with applicable standards
• IM B3/B5 flange for CNG series
• Insulation class: F
• Duty: S1
• Degree of protection: IP 54
• Terminal board protection: IP 54
• 4-pole version available for CNG and BSN variants

Technical specifications

• Standards: DIN 24255 (UNI EN 733)
• Intended fluid: clean liquids without abrasives or suspended solids
• Max liquid temperature: 35 °C (domestic) / 90 °C (other uses)
• Max ambient temperature: 40 °C
• Max flow rate: 240 m3/h
• Max head: 100 m
• Materials: cast iron G20 body and motor bracket; impeller in cast iron G20 or brass on specific models; shaft in AISI 304 stainless steel
• Seal: carbon-ceramic mechanical seal
• Protection rating: IP 54 (motor and terminal board)
• Motor insulation: class F
• Service duty: S1
• Available versions: single-phase (with built-in protection and capacitor), three-phase (motor protection by installer), CNG/BSN variants with optional 4-pole motors