Recommended V-Belt Tension; V-Belt Tension, 50 Hz - Grundfos BMEX Series Montage- Und Betriebsanleitung

16. Recommended V-belt tension

16.1 V-belt tension, 50 Hz

The table below shows the recommended tension of V-belts for the BME hp feed pump:
Diameter of
pulley
Number
[mm]
of V-belts
Motor Pump
160 kW, 50 Hz, 400 V, 2976 min
300
280
265
150 9
250
236
224
132 kW, 50 Hz, 400 V, 2977 min
300
280
265
150 8
250
236
224
212
110 kW, 50 Hz, 400 V, 2979 min
300
280 6
265
250
150
7
236
224
8
212
90 kW, 50 Hz, 400 V, 2970 min
300
280
265
250
236
150 6
224
212
200
190
75 kW, 50 Hz, 400 V, 2974 min
300
280
265
250
236 150 5
224
212
200
190
* V-belt tension within the first hour of operation.
** V-belt tension after more than one hour of operation.
16
V-belt tension, 50 Hz
Belt V-belt tension
length [N]
New belts* Check**
[mm]
T -T T -T
min. max. min. max.
-1
1650 900-1000
650-700
1600
800-900
600-700
1550
-1
1650 850-900 650-700
1600
800-900
600-700
1550
700-800
1500
-1
1650 900-1000 700-800
1600
800-900
650-700
1550
700-800
500-600
1500
-1
1550 800-900
600-700
1500
700-800
1450
500-600
1400
-1
1550 800-900
600-700
1500
700-800
1450
500-600
1400
Diameter of
pulley
Number
[mm]
of V-belts
Motor Pump
55 kW, 50 Hz, 400 V, 2960 min
300
280
265
250
236
150 4
224
212
200
190
45 kW, 50 Hz, 400 V, 2970 min
300
280
265
250
236 150 3
224
212
200
190
37 kW, 50 Hz, 400 V, 2955 min
300
280
265
250
150 3
236
224
212
200
190
30 kW, 50 Hz, 400 V, 2955 min
300
280
265
250
150 2
236
224
212
200
190
Belt V-belt tension
length [N]
New belts* Check**
[mm]
T -T T -T
min. max. min. max.
-1
1500 800-900
600-700
1400 700-800
500-600
1320 600-700
-1
1500
800-900
1400
600-700
1320 700-800
500-600
1250
-1
1400 800-900
600-700
1320 700-800
500-600
1250 600-700
400-500
-1
800-900
1400
600-700
1320
700-800
500-600
1250