Grundfos CR 155-4-1 High Pressure Multistage Vertical Stainless Steel Centrifugal Water Pump

CR 155-4-1 A-F-A-E-HQQE
Vertical multistage centrifugal pump with inlet and outlet on the same horizontal plane (in-line). The pump head and base are made of cast iron, while all other liquid-contact components are manufactured from stainless steel. The Grundfos cartridge-type shaft seal enhances the machine's reliability and operational safety, making maintenance more straightforward. Electrical energy is transmitted via a split coupling. Pipe connections are achieved through DIN flanges. The pump is equipped with a three-phase asynchronous motor featuring a cooling fan and a foot bracket.

CR 155-4-1 A-F-A-E-HQQE Number: 99143350 Applications: Commercial heating Commercial air conditioning Commercial water pressure boosting District heating District cooling Machining Industrial cleaning processes Process water distribution Heating supply Refrigeration Industrial water supply and transportation Industrial wastewater Process water treatment Desalination Surface water intake Drinking water treatment Municipal water transmission and distribution Irrigation Solar water solutions Community and building water supply Vertical multistage centrifugal pump with suction and discharge ports on the same horizontal plane. The pump head and base are made of cast iron, while all other wetted components are made of stainless steel (EN 1.4301).

• Liquid conveyed: Water
• Liquid temperature range: -20 .. 120 °C
• Liquid temperature during operation: 20 °C
• Density: 998.2 kg/m³

• Pump speed basis: 2976 rpm
• Rated flow rate: 155 m³/h
• Rated head: 102.4 m
• Pump orientation: Vertical
• Shaft seal configuration: Single
• Main shaft seal: HQQE
• Shaft seal code: HQQE
• Approvals: CE, UKCA, SEPRO
• Drinking water certification: ACS
• Curve tolerance: ISO9906:2012 3B

• Base: Ductile cast iron
  • Base standards: EN 1563 EN-GJS-500-7 / ASTM A536-84 65-45-12
• Impeller: Stainless steel
  • Impeller material: EN 1.4301 / AISI 304
• Bearings: WC/WC
• Support bearings: Graflon
• Materials certified to: European standards

• Maximum ambient temperature: 55 °C
• Maximum operating pressure: 16 bar
• Maximum pressure at specified temperature: 16 bar / 120 °C
• Connection types: DIN
• Inlet size: DN 150
• Outlet size: DN 150
• Pressure rating for pipe connection: PN 16
• Motor flange size: FF500

• Motor standard: IEC
• Motor model: INNOMOTICS
• Rated power - P2: 55 kW
• Pump required power (P2): 55 kW
• Power supply frequency: 50 Hz
• Rated voltage: 3 x 380D/660Y V
• Rated current: 100/57.0 A
• Starting current: 780 %
• Cos phi - Power factor: 0.89
• Rated speed: 2975 rpm
• Efficiency: IE3 94.3%
• IE efficiency class: IE3
• Motor full-load efficiency: 94.3 %
• Motor efficiency at 3/4 load: 94.1 %
• Motor efficiency at 1/2 load: 92.6 %
• Motor pole count: 2
• Enclosure rating (IEC 34-5): IP55
• Insulation class (IEC 85): F
• Motor number: M1U05338

• Frequency converter: None

• Junction box position: 6
• Minimum Efficiency Index, MEI ≥: 0.70
• Net weight: 652 kg
• Gross weight: 795 kg
• Transport volume: 2.04 m³