LCV [en-US]
22
6.4.2
Switching Frequency
To prevent high temperature increases in the motor and excessive loads on the pump, coupling, motor, seals and bearings, the
switching frequency should not exceed the following number of start-ups per hour.
Motor rating
Maximum Motor Switchings / Hour
< 12 kW (< 16 hp)
100
12 kW – 100 kW (16 hp – 135 hp)
150
> 100 kW (> 135 hp)
200
6.4.3
Density of the Medium Handled
The power input of the pump will increase in proportion to the density of the medium handled. To avoid overloading of the motor,
pump and coupling, the density of the medium must comply with the data specified on the purchase order.
6.4.4
ZW Pump Additional Limits
Slurry S.G. should not exceed 1.3.
Operating temperature should not exceed 80 °C (176 °F).
Operating pH should be kept above 6.0 pH.
Chlorides in the slurry should not exceed 1000 ppm.
Size
Motor Mount Power Limit (kW)
Speed Limits (RPM)
Motor Limit
Application Limit
Frame 1
Frame 2
Frame 1
Frame 2
Minimum
Maximum
ZW 40-190
7.5
14.9
5.0
9.3
1000
2560
ZW 65-290
11.2
22.3
7.4
17.1
700
1920
ZW 50-360
11.2
44.7
12.6
35.0
700
1920
ZW 100-390
29.8
74.6
20.1
55.9
600
1280
ZW 125-405
55.9
111.8
41.0
91.7
500
1120
ZW 150-480
55.9
111.8
41.0
91.7
500
1120
Summary of Contents for LCV
Page 40: ...LCV en US 40 14 Notes ...
