| Features & Benefits |
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Grundfos CR Pump Features and Benefits
The CR pump, motor and VFD is an engineered product
The CRE pump is supplied by one supplier
Reduces installation and wiring costs
The functionalities are designed for specific pump applications
The CRE pump with sensor is a plug and pump product
Grundfos quality and reliability
A compact system
The pump, motor and VFD are tested as a complete unit in the factory
Quality and reliability built on over four decades of continuous Grundfos testing and refinement
Corrosion-resistant pump modules that can be combined in multiple ways to meet almost every conceivable requirement.
Streamlined design to save space
Grundfos MGE motor with integrated frequency converter to allow multi-speed operation and deliver optimal pump performance
Special pump solutions to cope with extraordinarily high pressure, temperature extremes and liquids that are very aggressive, abrasive, hazardous, hardening or flammable
Efficiency saves money year after year - Getting the best possible overall efficiency out of your pump makes financial sense. The narrow interval between CR pump sizes allows you to eliminate the efficiency drop associated with over-sized pumps. By minimizing the difference between pump capacity and the required pressure and volume, you get a pump which runs as close to its optimum duty point as possible. That makes it as cost-efficient as possible. The result of years of Grundfos development work is a 10% increase in pump efficiency. This translates into a power reduction of 15-20% for the CR pumps. When pumps are in operation many hours a day, such improvements provide substantial savings – year in and year out. |
| General Description |
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The CR, CRN high pressure series is a multipurpose pump range suitable for a variety of different applications demanding reliable and cost-efficient supply. CR, CRN handles a variety of liquids from potable water to industrial liquids within a very wide temperature, flow and pressure scale.
CRNE 1 and 3 HS - CRNE-HS is a single pump solution capable of generating up to 692 psi. The CRNE-HS pump is a non selfpriming, vertical multistage centrifugal pump fitted with a high speed Grundfos motor with integrated frequency converter, type MLE. The direction of rotation is the opposite of that of standard pumps, and the chamber stack is turned upside-down, resulting in the pumped liquid flowing in the opposite direction.
CRN 5, 10, 15, and 20 SF - CRN-SF is a double pump system capable of generating up to 696 psi. The system consists of two pumps in series. The first pump is a standard pump for feeding. The second pump is a high pressure pump especially designed for high pressures. This data booklet covers technical information about the high pressure pump. The CRN-SF pump is a non-selfpriming, vertical multistage centrifugal pump fitted with a Grundfos specified TEFC-motor. The pump consists of a base and a pump head. The pump body and the outer sleeve are secured between the base and the pump head by means of staybolts. The direction of rotation is the opposite of that of standard pumps, and the chamber stack is turned upside-down, resulting in the pumped liquid flowing in the opposite direction.
CR32, CRN 32 - CR, CRN is a pump capable of generating up to 568 psi. The pump is a high pressure pump specially designed for high pressures. This product guide covers technical information about the high pressure pump. The CR, CRN high pressure pump is a non-selfpriming, vertical multistage centrifugal pump fitted with a Grundfos specified motor and a specially developed high-pressure shaft seal. When necessary it includes a special pump sleeve and a bearing flange which make the pump capable of handling higher pressures.
2xCR(N) 45, 64, and 90 - 2 x CR, CRN is a double pump system capable of generating up to 557 psi. The system consists of two pumps in series. The first pump is a standard pump for feeding. The second pump is a high pressure pump and can be a specially designed pump for high pressures. This product guide covers technical information about the high pressure pump. The CR, CRN high pressure pump is a non-selfpriming, vertical multistage centrifugal pump fitted with a Grundfos specified motor and a specially developed high-pressure shaft seal. When necessary it includes a special pump sleeve and a bearing flange which make the pump capable of handling higher pressures.
2x CR(N) 120 and 150 - 2 x CR, CRN is a double pump system capable of generating up to 557 psi. The system consists of two pumps in series. The first pump is a standard pump for feeding. The second pump is a high pressure pump and can be a specially designed pump for high pressures. This product guide covers technical information about the high pressure pump. The CR, CRN high pressure pump is a non-selfpriming, vertical multistage centrifugal pump fitted with a Grundfos specified motor and a specially developed high-pressure shaft seal. When necessary it includes a special pump sleeve and a bearing flange which make the pump capable of handling higher pressures.
Applications
Multi-purpose CR pumps can be adapted to applications, ranging from simple domestic installations to heavy-duty industrial settings. These include: process water systems, hygienic washing and cleaning systems, seawater systems, water treatment, pumping of acids and alkalis, boiler feed, and applications involving temperature control with exposure to very high, low or fluctuating temperatures.
Whatever the particular challenges of your installation – for example, limited space, earthquake risk, high altitude or certification issues – the CR range has all bases covered. |
| Materials of Construction |
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| The CR is available in four different materials: AISI 304 cast iron, stainless steel AISI 304, stainless steel AISI 316, and titanium. |
| Motors |
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| Grundfos provides many motor solutions depending upon the application and demand. In addition, Grundfos makes its own motors to ensure maximum performance. The ML motors are remarkably quiet and highly efficient. They are also available in the self-regulating MLE configuration, featuring an integrated variable frequency drive. |
| Bearings |
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| Durable bearings - The CR bearings provide remarkable long life thanks to hardwearing materials and a wide range of options for difficult liquids. |
| Multiple Seal Options |
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| Cartridge seal - The specially designed cartridge seal increases reliability, ensures safe handling and enables easy service and access. Shaft seal solutions - The cartridge shaft seal configuration comes in a wide choice of materials. It is available in flushed seal and double seal configurations as well as a Cool-top version that can handle temperatures up to +356°F (+180°C). |
| Control Options |
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| Grundfos CRE-pumps are your all-in-one energy saving solution: a pump and motor with an integrated frequency converter, controller and sensor. Grundfos CRE-pumps offer all the advantages of a total system integration. They come with an integrated frequency converter, PID controller and, in some models, pressure or differential pressure sensor. The pump, motor, frequency converter, PID controller and sensor are perfectly matched, tested and configured at the factory, which greatly facilitates the subsequent installation and commissioning. An E-pump solution constitutes the ideal variable-speed solution for all types of industry and building applications. |
| Optional Equipment |
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| The Grundfos CUE is your ideal solution: a wall-mounted frequency converter, which has E-pump functionality. CUE solutions cover most pump types, application areas, and power ranges outside the E-pump range. A CUE solution is a great fit in situations where an integrated solution is either undesirable or prohibited - such as sanitary and hazardous areas. The CUE solution offers you a space-saving installation, the freedom of choice, and speed-control functionality with new or existing Grundfos pumps. |
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