Choice of materials is crucial
A range of alternative materials is available to adapt the Grundfos CR to handle the wide variety of liquids encountered today - from drinking water to aggressive industrial liquids.

For non-corrosive liquids
The CR is made of stainless steel AISI 304 and top-quality cast iron. The CRI is an all stainless-steel pump. The CR and CRI are primarily intended for pumping water and other non-corrosive liquids.

For aggressive liquids
High-grade AISI 316 stainless steel is used in the CRN to withstand aggressive industrial liquids.

For saline liquids
The CRT is made of titanium and is therefore totally corrosion-free in saline liquids - unlike any other pump of its kind. Only the CRT can offer such high levels of reliability under such uncompromising conditions.

For custom-built CR
The standard CR range is supplemented by a custom-built program which is anything but standard. An entire development team is dedicated to custom-building CRs to cover applications which are out of the ordinary. Please contact your local Grundfos sales office for more information about custom-built CRs.