End-suction Close-coupled Multi-stage Pump
Grundfos CM 25-4 A-R-A-E-AQQE F-A-A-N
Model Number: 92624837
Suitable for
Commercial air conditioning
Commercial water pressure boosting
District heating
Domestic water supply pressure boosting
Industrial cleaning processes
Heating
Industrial water supply and transportation
Desalination
Municipal water distribution
Irrigation
Community and building water supply
The CM is a reliable, quiet and compact horizontal end-suction pump. The pump adopts a modular design, which allows for easy customization. The CM is available in cast iron and stainless steel versions.
Innovative Modular Design: CM Horizontal Multi-stage Pump
The CM horizontal multi-stage pump is a close-coupled pump that provides reliable flow control solutions for systems of different sizes. Utilizing centrifugal modular technology, its interchangeable modules make it an essential part in water treatment, cleaning and disinfection, temperature control, chemical processing, pharmaceuticals, and other fields.
The CM series of horizontal multi-stage pumps combines the features of being lightweight, low-noise, highly reliable, and easy to maintain. To a certain extent, it reduces the hidden costs of the system, such as energy consumption, operating temperature, vibration, and noise. The modular design of the CM horizontal multi-stage pump, together with the application of reliable heat treatment technology, ensures its long service life and high-efficiency performance.
CM 25-4 A-R-A-E-AQQE F-A-A-N
A compact and highly reliable horizontal multi-stage end-suction centrifugal pump with an axial suction port and a radial exhaust port. The shaft, impeller, and chamber are made of stainless steel, while the liquid inlet and outlet parts are made of cast iron. The mechanical shaft seal is a specially designed unbalanced O-ring seal. The pipe connection is achieved through internal Whitworth pipe threads (Rp (ISO 7/1)). A 3-phase asynchronous motor with a cooling fan and a mounting bracket is installed on the water pump.
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Controller
Frequency converter: None
Liquid
Liquid being conveyed: Water
Liquid temperature range: -20.. 90 °C
Liquid temperature during operation: 20 °C
Density: 998.2 kg/m³
Technology
Pump speed on which pump data are based: 2900 revolutions per minute
Rated flow: 22 m³/h
Rated head: 65.49 m
Main shaft seal: AQQE
Shaft seal code: AQQE
Approvals: CE, CEL, EAC, UKCA
Approvals for drinking water: WRAS, ACS,
Curve tolerance: ISO9906:2012 3B
Materials
Pump casing: Cast iron
Pump housing: EN - GJL - 200
Pump casing: ASTM A48 - 25A
Impeller: Stainless steel
EN 1.4301
AISI 304
Installation
Ambient temperature range: -20.. 55 °C
Maximum operating pressure: 10 bar
Maximum pressure at specified temperature: 10 bar / 90 °C
Interface type: Rp
Suction port size: 2 inch
Outlet size: 2 inch
Outlet position: 12
Electrical data
Motor standard: IEC
Frame size: 132SB
IE energy - efficiency class: IE3
Rated power - P2: 7.5 kW
Power supply frequency: 50 Hz
Suitable for 50/60 Hz: N
Rated voltage: 3 x 220 - 240D/380 - 415Y V
Service factor: 1.00
Rated current: 25.0 - 24.2/14.4 - 14.0 A
Starting current: 780 - 910 %
Rated speed: 2910 - 2920 revolutions per minute
Degree of protection (IEC 34 - 5): IP55
Insulation class (IEC 85): F
Built - in motor protection: PTC
Cable included (Yes/No): N
Others
Terminal box position: 12
Minimum efficiency index, MEI ≥: 0.7
Net weight: 54.8 kg
Gross weight: 58.5 kg
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