GRUNDFOS CR 20

PUMP
The GRUNDFOS CR 20 Pumps are ver cal, multi-stage centrifugal pumps with suc on and discharge ports on same the level (in
line) enabling installation in a horizontal one-pipe system. They are suitable for water supply, irrigation, liquid transfer, and
boos ng applications. The heavy-duty pumps are designed for continuous duty in commercial & industrial installations. The
pump head and base are in cast iron – all other wetted parts are in stainless steel. A cartridge sha seal ensures high reliability, safe handling, and easy service and access. For aggressive liquids, the ‘N’ version is available which features high-grade
stainless steel AISI 316 for all parts in contact with the pumped liquid.
MOTOR
The pumps are coupled to totally enclosed fan-cooled 2-pole GRUNDFOS motors complying with IEC and DIN standards. The
high-efficiency class IE3 motors have a ‘blue flux” logo. Three-phase motors are connected to an effective motor starter in accordance with local regulations or to a Grundfos CUE controller for optimal performance.

Enclosure Class: IP55 Insula on Class: F Speed: 2900rpm Voltage: 3 x 380/415V

OPERATING CONDITIONS
Pumped liquids: Thin, clean, non-aggressive, and non-explosive liquids with
out solid particles or fibres.
Liquid Temperature Range: -20 C to +120 C
Max Ambient Temperature: +60 C
Max Suction Lift: According to the NPSH curve plus a safety margin of 1m.
Max Opera ng Pressure: 16Bar to CR 20-10 and 25 Bar to CR 20-17