Centrifugal pump CNG series

for potable waterwith asynchronous motorstationary

Overview
Normalized centrifugal electric pumps with stub shaft and standard motor. Series CNG manufactured according to DIN 24255 (UNI EN 733). Designed to pump clean liquids without abrasives or suspended solids; non-explosive and non-aggressive to pump materials.

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 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 orifices: according to DIN 2532
• Impeller: cast iron G20 with cataphoretic treatment
• Threaded counter flanges: galvanized steel with EPDM gaskets
• Pump shaft: stainless steel AISI 304
• Mechanical seal: carbon-ceramic

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

• Motor protection for three-phase models must be installed by the customer; use equipment compliant with applicable standards
• Construction: IM B3/B5
• Insulation class: F
• Service: S1
• Degree of protection: IP44 (motor)
• Terminal board protection: IP54

Characteristics / Technical specifications

• Series / model name: CNG
• Standards: DIN 24255 (UNI EN 733)
• Application: pumping clean liquids without abrasives or suspended solids; non-explosive, non-aggressive to pump materials
• Liquid temperature: up to 35 °C (domestic CEI EN 60335-2-41) or up to 90 °C (other uses)
• Ambient temperature: max 40 °C
• Max flow rate: 240 m3/h
• Max head: 100 m
• Pump body and motor bracket: cast iron G20 with anti-corrosive coating
• Impeller: cast iron G20 with cataphoretic treatment
• Orifices: DIN 2532
• Counter flanges: galvanized steel with EPDM gaskets
• Shaft material: stainless steel AISI 304
• Mechanical seal: carbon-ceramic
• Motor type: asynchronous squirrel-cage, closed, external ventilation
• Motor enclosure: IM B3/B5
• Insulation class: F; Service: S1
• Protection: IP44 (motor), terminal board IP54