CENTRIFUGAL PUMP GRUNDFOS CR3-7

Grundfos CR is a vertical, multistage, normally suction in-line pump. CR is suitable for numerous applications such as pressure boosting and industrial processes. Installed between pipes and secured to a base.

Features

• Shaft seal construction length complies with EN 12756 standard
• Power transmission via cast iron two-piece coupling
• Pipe connections with SOIKEA flanges

Technical data

• Motor: 3-phase AC motor
• Impeller and stage casing material: stainless steel, DIN W.-No. 1.4301
• Pump head and base material: cast iron
• Pump speed rating: 2856 rpm
• Rated flow rate: 0.8333 l/s
• Rated head: 321.1 kPa
• Standard flange: SOIKEA
• Pipe connection: Rp 1
• Motor flange size: FT85
• Motor model: 71B
• IE efficiency class: IE3
• Efficacy: IE3 77.8%
• Rated power P2: 0.55 kW
• Pump required power P2: 0.55 kW
• Supply frequency: 50 Hz
• Rated voltage: 3 x 220-240D/380-415Y V
• Rated current: 2.50/1.44 A
• Starting current: 580-620 %
• Cos phi power factor: 0.80-0.70
• Rated speed: 2830-2850 rpm
• Motor efficiency at full load: 77.8 %
• Motor efficiency at 3/4 load: 81.5 %
• Motor efficiency at 1/2 load: 79.5 %
• Pole number: 2
• Protection class (IEC 34-5): 55 Dust/Jetting
• Insulation class (IEC 85): F
• Net weight: 19.6 kg

This product description is an automated translation of the original Finnish description.