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GRUNDFOSCRE RANGE CUSTOMISED PUMP SOLUTIONS Optimised for steam boiler feed

Get upgraded. Twice. A double upgrade for your boiler feed pumps Your first upgrade: The new CRE with three-phase motors You already know the electronically controlled CRE pump range and how it combines reliability and efficiency thanks to the integrated frequency converter in its MGE motor. You may also already know that the new generation of CRE pumps with three-phase, dual-voltage MGE motors from Grundfos has hit the market. You have heard how they are even more efficient even more robust have a very wide power supply range incorporate a duty/standby function and seriously improve stock...

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Designed to solve challenges Challenge Solution See page Unstable water levels Continuous feeding ensures means continuous operation Erractic load characteristics Stretched pump curves ensure smooth load characteristics High temperatures Superior temperature tolerance for both motor and pump. Automated derating optional. Low-NPSH technology adjusts pump performance to suit loads Limited space Over-synchronous operation gets the same performance out of smaller pumps Insufficient control Embed the functionalities and get the data readouts you want Full access to BUS communication for constant...

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The customisation options of the CR range goes even further than a choice of materials, connection options, and details. The CRE range of speed-controlled pumps can now be optimised with special software, too..

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Now go for complete control. Sophisticated code optimises your pumps After decades of development work, the mechanics of your Grundfos pumps and motors are virtually as good as they can get. So our design team went on to harness the power of computers. Always adapting, always efficient Inside the customised CRE pumps, digital wonders work tirelessly to analyse input and make small adjustments all the time, helping you create a system that works better. It’s that simple on the outside. But rather complex on the inside. See below for more – and turn to “The Science Bits” for details. We make...

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Optimising boiler feed pumps with software We stretch the pump curves for you By getting software tailor-made for you, you can make your pumps operate outside their set pump curves. You get efficiency so high it almost goes against the laws of nature. Basically, the rules don’t apply to you anymore. To see how we can stretch pump curves to suit you, turn to “The Science Bits” on p. 8-9. So how do we get the pump to choose the right point? With computer power. By fiddling with the electronics, our experts persuade the pump to decrease its rpm as the flow demand increases. In effect, the pump...

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Upgrade your customers Eff1 motors save energy, generate less heat, may prompt government subsidies and can promote a greener image Stable water levels mean stable operation No downtime thanks to cutting-edge supervision and protection Due to the low net positive suction head (NPSH) we have very efficient cavitation preventing, which is ideal in all situations where you deal with high temperatures and difficult inlet conditions. Low-NPSH pumps also al low for more compact systems by reducing excess pres sure itself, thereby eliminating the need for additional tanks. Superior reliabiity...

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More details for those who want them

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Your upgrades explained The “Science Bit” is exactly what it says: It is where those with a keen interest in technical matters can check out how your dedicated system upgrade was created. Creative software. Made for you. The latest advances in software allow us to create completely customised solutions with very compact object code. Basically, that means our designers are free to think creatively about how your systems can be improved. And because it’s all done with software, they can target your challenges very, very specifically, making the hardware do exactly what is best for you....

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The Science Bits: Push and pull the pump curve with software

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We keep your water levels level. At all times In any boiler tank application, a key objective is to maintain a constant water level in the tank, creating a stable surface to ensure stable steam generation. Using a motorised feed valve will enable you to maintain constant feeding. Such equipment needs to be very accurate. Regulation must be carried out within a seriously narrow window; you need fast, yet smooth responses to changes in operating conditions. That presents special challenges. And is often costly. Sensors and software meet specific demands Grundfos has met those challenges with...

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Being responsible is our foundation Thinking ahead makes it possible Innovation is the essence The CR range from Grundfos Grundfos was the first company ever to develop a multistage in-line pump. The present-day CR pump series is the most extensive in-line pump programme on the market and remains second to none. With many innovative features unique to Grundfos, CR pumps provide superior reliability and the lowest possible cost of ownership to customers worldwide. Customisation made easy In order to meet all customer requirements with complete precision, Grundfos has developed a unique...

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