Wilo Rexa CUT GE Series User Manual

Product description en
Installation and operating instructions Wilo-Rexa PRO 11
2
6
4
5
7
3
1
Fig.1: Overview
1 Motor
2 Power supply cable
3 Seal housing
4 Pressure port
5 Suction port
6 Hydraulics housing
7 Handle/attachment point
4.1.1 Hydraulics
Centrifugal hydraulics with different impeller shapes and horizontal flange connection
on the pressure side. Depending on the hydraulics, the following impeller shapes are
used:
▪Single-channel impeller
▪Vortex impeller
The hydraulics are not self-priming, in other words, the fluid must flow in either auto-
matically or with supply pressure.
4.1.2 Motor
The drive versions used are single-phase current and three-phase current surface-
cooled motors. The motor is cooled by the fluid around it. The waste heat is transferred
directly to the fluid or the ambient air via the motor housing. The motor may emerge
during operation. Continuous duty is also possible in dry well installation depending on
the motor power.
With AC motors, the start capacitor and operating capacitor is integrated in a separate
capacitor switchgear. The connection cable is longitudinally watertight and is available
in the following versions:
▪With plug
▪With bare cable end
4.1.3 Seal
The seal for the fluid and the motor compartment is made via two mechanical seals. The
sealing chamber between the mechanical seals is filled with medical white oil.
4.1.4 Material
▪Pump housing: EN-GJL-250 (ASTMA48 Class35/40B)
▪Impeller: EN-GJL-250 (ASTMA48 Class35/40B) or EN-GJS-500-7
(ASTMA53670-50-05)
▪Motor housing: EN-GJL-250 (ASTMA48 Class35/40B)
▪Shaft: Stainless steel AISI1.4021 (420)
▪Seal on the motor side: C/MgSiO
4
▪Seal on the fluid side: SiC/SiC
▪Seal, static: NBR (Nitrile)
4.1.5 Fitted accessories
Plug
In the "P" version, a CEE plug is attached. The plug is designed for use in commercially
available CEE sockets and is not overflow-proof.
4.2 Monitoring devices
Overview of monitoring devices:
P 13
P 17
Motor compartment
• o
Motor winding: temperature limiter
(1-circuit temperature monitoring)
• o
Motor winding: temperature controller
(2-circuit temperature monitoring)
o •

Wilo Rexa CUT GE Series Specifications

General

Brand	Wilo
Model	Rexa CUT GE Series
Category	Water Pump
Language	English