Horizontal Pumps; Seal Chamber Connections; Posizione Ore; Uz Plkst - Grundfos CR 1s Montage- Und Betriebsanleitung

6.2 Horizontal pumps

Fig. 3 Air vent position on horizontal CR pumps
Key to fig. 3
Pump type
CRI, CRN(E) 1s, 3, 5
CRI, CRN 10, 15, 20
CR, CRN 32
CR, CRN 45, 64
CR, CRN 90, 120, 150
75 kW motors are higher than distance x.
Note

7. Seal chamber connections

The seal chamber has connections for the air vent and sensors.
Figures 4, 5 and 6 show the connections for the air vent.
Pos. A shows the connection for a sensor.
Shaft seal
Air vent
Cooling pipe
Fig. 4 Seal chamber CRI, CRN 1s, 1, 3, 5
6
x [mm]
308
324
391
398
404
A
Sensor
Fig. 5
Fig. 6
Shaft seal
Air vent
Seal chamber CRI, CRN 10, 15, 20
Air vent
Seal chamber CR, CRN 32, 45, 64, 90, 120, 150
A
Sensor
Plug
Shaft seal
A
Sensor
Plug