CALPEDA MXV 50-1616/C [47/80] Mxv 50 16 65 32 80 48
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CALPEDA MXV 50-1616/C [47/80] Mxv 50 16 65 32 80 48

CALPEDA MXV 50-1616/C [47/80] Mxv 50 16 65 32 80 48
Vertical multi-stage in-line pumps
MXV 50-16, 65-32, 80-48
OPERATING INSTRUCTIONS
Table of contents
Subject Page
1. Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2. Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4. Connecting the motor . . . . . . . . . . . . . . . . . . . . . . . . . . .7
5. Pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
5.1 Suction pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
5.2 Delivery pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
6. Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
7. Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
7.1. Preliminary checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
7.2. Filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
7.3. Starting and checking operations . . . . . . . . . . . . . . . . . .8
8. Maintenance and monitoring pump operation . . . . . . . .9
9. Dismantling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
9.1. Replacing the mechanical seal . . . . . . . . . . . . . . . . . . .10
9.2. Replacing the ball bearing . . . . . . . . . . . . . . . . . . . . . . .10
9.3.
First-stage bearing and intermediate bearing . . . . . . . . . . . .10
10. Remounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
10.1. Tightening torque . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
10.2. Axial position of the pump rotor . . . . . . . . . . . . . . . . . . .10
11. Horizontal installation . . . . . . . . . . . . . . . . . . . . . . . . . .10
11.1 Connection of support feet . . . . . . . . . . . . . . . . . . . . . .10
12. Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
13. Cross section drawing and designation of parts . . . . . .11
13.1. Stages composition . . . . . . . . . . . . . . . . . . . . . . . . .37-39
13.2. Impellers and sleeves composition . . . . . . . . . . . . .37-39
READ AND FOLLOW ALL INSTRUCTIONS
1. Operating conditions
Standard construction
- For clean liquids: non-explosive and non-flammable, non-hazardous
for health or the environment, non-aggressive for pump
materials, not containing abrasives, solid or fibrous particles.
-
With seal rings in EPDM the pump is not suitable for use with oil.
- Maximum final pressure in the pump casing: 25 bar.
- Liquid temperature: -15˚C to +110˚C.
- Installation in well-ventilated locations protected against the
weather, with maximum environment temperature of 40˚C.
2900 1/min
Rated motor power up to kW: 4 7,5 22
Sound pressure dB (A) max: 69 74 76
Starts/hour max: 30 24 15
When a non-standard motor is installed, refer to the rated operating
conditions and noise-level values in the instructions for the motor.
2. Transportation
Raise and transport the pump and pump-motor unit (without
packaging) as indicated in fig. 1. Raise the pump-motor unit
slowly (fig.1c), making sure it does not move from side to side
in an uncontrolled way, to avoid the risk of imbalance and
tipping up. For horizontal raising, brace the pump in a sling
close to the centre of gravity.
3. Installation
The MXV 50-16, 65-32 and 80-48 standard version pumps
must be installed with the rotor axis in the vertical position and
with the base under the pump.
They can also be installed in the horizontal position, using the
appropriate support feet, which are supplied on request (see
section 11.).
Install the pump as close as possible to the suction source (with
consideration given to the NPSH value).
Provide space around the pump for motor ventilation, to
allow for checking of shaft rotation, for filling and draining
the pump and to allow for collection of the liquid to be
removed (especially for draining liquids which are harmful or
have to be removed at temperatures higher than 60 ˚C).
Make sure prolonged accidental leakage of liquid
does not cause damage to persons or property.
Leakage may develop as a result of surge pressure or
water hammer, erroneous operations (such as failing
to close a plug or valve) or other functional disorders. Allow
for the possibility of channeling away any leaked liquid or
for an automatic drainage system against flooding.
Mount the pump on a flat horizontal surface (using a level gauge)
such as a solid cement base or a rigid supporting structure in metal.
To ensure stability, insert, if necessary, small pieces of
calibrated metal plate next to the 4 anchoring screws.
4. Connecting the motor
The MXV pumps are designed for use with standard electric
motors with (IEC 34-7) IM V1 construction form and dimensions
and output ratings in accordance with IEC 72.
If a pump is supplied without the motor, check the rated
power and rpm indicated on the name plate and technical data
given in the data sheet.
ATTENTION: the motors must have two lifting points in di-
ametricalIy opposite positions for vertical lifting with the shaft
end downwards (fig.1 b)
Before installation clean the motor shaft extension, the key and
contact surfaces of the flanges to remove any protective paint,
dirt or oxydation.
Lubricate the motor shaft extension with a graphite-base,
dripfree, anti-friction product.
Do not use oil as it can harm the mechanical seal below (see
section 9.1.).
With the pump in the vertical position, insert the motor shaft in
the coupling, aligning the key with the key slot and resting the
motor flange on the lantern flange.
Turn the motor, adjusting the position of the terminal box as
required and aligning the holes on the flanges.
ATTENTION: the 4 flange screws (70.18) with nut must be
uniformly tightened with alternated crossover tightening proce-
dure in diametrically opposite positions (see section 10.1.).
Before and after tightening the screws (70.18), make sure the
coupling with pump shaft and motor shaft can be freely
turned by hand (remove and then replace the guard 32.30).
ATTENTION: for removing or replacing the motor see
section 9.
5. Pipes
Provide a diameter assuring a liquid flow velocity not higher
than 1.5 m/s for suction, and 3 m/s for delivery.
The pipe diameters must never be smaller than the pump
connection ports.
The arrows on the pump casing (14.00) indicate the inlet
(suction) and outlet (delivery) ports.
Ensure the internal pipe surface is clean before connection.
Secure all pipes to their rests close to the pump and connect
them so that they are not subjected to stress and do not
transmit vibration or flexion strain to the pump (see fig.2).
Fig.1a Raising pump without the motor
b Raising motor without the pump
c Raising pump with motor
a
b
c
c
Max 270 kg
4.93.214
7

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Vertical multi stage in line pumps 2 Transportation MXV 50 16 65 32 80 48 OPERATING INSTRUCTIONS Raise and transport the pump and pump motor unit without packaging as indicated in fig 1 Raise the pump motor unit slowly fig 1c making sure it does not move from side to side in an uncontrolled way to avoid the risk of imbalance and tipping up For horizontal raising brace the pump in a sling close to the centre of gravity Table of contents 3 Installation Subject Page 1 Operating conditions 7 2 Transportation 7 3 Installation 7 4 Connecting the motor 7 5 Pipes 7 5 1 Suction pipe 8 5 2 Delivery pipe 8 6 Electrical connection 8 7 Starting 8 7 1 Preliminary checks 8 7 2 Filling 8 7 3 Starting and checking operations 8 8 Maintenance and monitoring pump operation 9 9 Dismantling 9 9 1 Replacing the mechanical seal 10 9 2 Replacing the ball bearing 10 9 3 First stage bearing and intermediate bearing 10 10 Remounting 10 10 1 Tightening torque 10 10 2 Axial position of the pump rotor 10 11 Horizontal installation 10 11 1 Connection of support feet 10 12 Spare parts 10 13 Cross section drawing and designation of parts 11 13 1 Stages composition 37 39 13 2 Impellers and sleeves composition 37 39 The MXV 50 16 65 32 and 80 48 standard version pumps must be installed with the rotor axis in the vertical position and with the base under the pump They can also be installed in the horizontal position using the appropriate support feet which are supplied on request see section 11 Install the pump as close as possible to the suction source with consideration given to the NPSH value 1 Operating conditions Standard construction For clean liquids non explosive and non flammable non hazardous for health or the environment non aggressive for pump materials not containing abrasives solid or fibrous particles With seal rings in EPDM the pump is not suitable for use with oil Maximum final pressure in the pump casing 25 bar Liquid temperature 15 C to 110 C Installation in well ventilated locations protected against the weather with maximum environment temperature of 40 C 2900 1 min Sound pressure upto kW 4 7 5 22 dB A max 69 74 76 max 30 24 15 Start s hour Make sure prolonged accidental leakage of liquid does not cause damage to persons or property Leakage may develop as a result of surge pressure or water hammer erroneous operations such as failing to close a plug or valve or other functional disorders Allow for the possibility of channeling away any leaked liquid or for an automatic drainage system against flooding A Mount the pump on a flat horizontal surface using a level gauge such as a solid cement base or a rigid supporting structure in metal To ensure stability insert if necessary small pieces of calibrated metal plate next to the 4 anchoring screws 4 Connecting the motor READ AND FOLLOW ALL INSTRUCTIONS Rated motor power Provide space around the pump for motor ventilation to allow for checking of shaft rotation for filling and draining the pump and to allow for collection of the liquid to be removed especially for draining liquids which are harmful or have to be removed at temperatures higher than 60 C When a non standard motor is installed refer to the rated operating conditions and noise level values in the instructions for the motor The MXV pumps are designed for use with standard electric motors with IEC 34 7 IM V1 construction form and dimensions and output ratings in accordance with IEC 72 If a pump is supplied without the motor check the rated power and rpm indicated on the name plate and technical data given in the data sheet ATTENTION the motors must have two lifting points in di ametrically opposite positions for vertical lifting with the shaft end downwards fig 1 b Before installation clean the motor shaft extension the key and contact surfaces of the flanges to remove any protective paint dirt or oxydation Lubricate the motor shaft extension with a graphite base dripfree anti friction product Do not use oil as it can harm the mechanical seal below see section 9 1 With the pump in the vertical position insert the motor shaft in the coupling aligning the key with the key slot and resting the motor flange on the lantern flange Turn the motor adjusting the position of the terminal box as required and aligning the holes on the flanges ATTENTION the 4 flange screws 70 18 with nut must be uniformly tightened with alternated crossover tightening procedure in diametrically opposite positions see section 10 1 Before and after tightening the screws 70 18 make sure the coupling with pump shaft and motor shaft can be freely turned by hand remove and then replace the guard 32 30 ATTENTION section 9 for removing or replacing the motor see 5 Pipes Fig la Raising pump without the motor b Raising motor without the pump c Raising pump with motor Provide a diameter assuring a liquid flow velocity not higher than 1 5 m s for suction and 3 m s for delivery The pipe diameters must never be smaller than the pump connection ports The arrows on the pump casing 14 00 indicate the inlet suction and outlet delivery ports Ensure the internal pipe surface is clean before connection Secure all pipes to their rests close to the pump and connect them so that they are not subjected to stress and do not transmit vibration or flexion strain to the pump see fig 2

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