Saci XV-F Serie Instrucciones De Instalación Y Funcionamiento página 21

XV/XVI/XV-F SS Vertical Multi-stages Centrifugal Pumps
Fault
The frequency of a. Leakage in the foot valve, check valve or system.
Pump start-up is
b. Ruptured membrane or no air pre-charge in surge tank.
too high.
a> Cavitation
Vibration and
b> Make sure that pump and motor shafts are properly aligned.
noise
c> Worn motor bearings.
d> Operation with frequency converter.
e> Check vibration and noise damping devices
Maximum Operating Pressure and inlet Pressure
50Hz
Stages
2 - 36
2 - 36
2 - 36
1 - 16
17 - 22
1 - 10
12 - 17
1 - 10
12 - 17
(1-1) - 7
(8-2) - 14
(1-1) - 5
(6-2) - 11
(12-2) - (13-2)
(1-1) - 5
(6-2) - (8-1)
(1-1) - 4
(5-2) - 6
Probable cause
Maximum Operating Pressure
XV, XVI, XVF-SS
25 bar
XV, XVI, XVF-SS
25 bar
XV, XVI, XVF-SS
25 bar
XV, XVI, XVF-SS
16 bar
25 bar
XV, XVI, XVF-SS
16 bar
25 bar
XV, XVI, XVF-SS
16 bar
25 bar
XV, XVI, XVF-SS
16 bar
30 bar
XV, XVI, XVF-SS
16 bar
30 bar
33 bar
XV, XVI, XVF-SS
16 bar
30 bar
XV, XVI, XVF-SS
16 bar
30 bar
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Repair or replace the components.
See relevant instructions in surge tank's manual.
Reduce the required flow or improve the operating
conditions of the pump (suction conditions, head, flow
resistance, liquid temperature, viscosity,...etc.).
Adjust the pump and/or motor shafts.
Replace the bearings or the motor.
Consult a qualified engineer form the supplier of the
frequency converter.
Replace vibration & noise dampers, if worn.
Stages
1
2 - 36
3
2 - 29
31 - 36
5
2 - 16
18 - 36
10
1 - 6
7 - 22
15
1 - 3
4 - 17
20
1 - 3
4 - 17
32
(1 -1)- 4
(5-2) - 10
(11-2) - 14
45
(1-1) - 2
(3-2) - 5
(6-2) - (13-2)
64
(1-1) - (2-2)
(2-1) - (4-2)
(4-1) - (8-1)
90
(1-1) - 1
(2-1) - (3-2)
3 - 6
20
Possible Solution
Maximum Inlet
Pressures
10 bar
10 bar
15 bar
10 bar
15 bar
8 bar
10 bar
8 bar
10 bar
8 bar
10 bar
4 bar
10 bar
15 bar
4 bar
10 bar
15 bar
4 bar
10 bar
15 bar
4 bar
10 bar
15 bar