Close coupled multi-stage
submersible clean water pumps
MXS
3-5-9
OPERATING INSTRUCTIONS
SAFETY
Read these instructions carefully before
installing or using the device.
The installer and final user must carefully comply
with all applicable standards and laws, including
local regulations. The manufacturer declines any
liability in the event of damage due to improper
use or use under conditions other than those indi-
cated on the name-plate and in these instructions.
The device has been built in conformity with the
current European Community laws.
1. Operating conditions
Standard construction
- For clean water with a maximum temperature of
35 °C and maximum sand content of 60 g/m
3
.
- Minimum internal diameter of well: 140 mm.
- Minimum immersion depth: 100 mm.
- Maximum submersion depth: 20 m (with suita-
ble cable length.
- Maximum starts/hour: 30 at regular intervals.
Sound pressure at minimum immersion depth:
< 70 dB (A).
Noise disappears when the pump is submersed.
Do not use in ponds, tanks or swimming
pools when people may enter or come
into contact with the water.
2. Installation
The internal diameter of the delivery pipe must
never be smaller than the diameter of the pump
connection port: G 1
1
/
4
(DN 32)
for the connection
of delivery pipe see pag, 46 fig.9.
The pump must be installed in the vertical position
with the delivery connection facing upwards.
The pump can be installed immersed (min 100 mm)
or submersed (max 20 m) either standing on a
bottom surface or suspended.
2.1. Pump in the standing position
The pump can be rested on the flat bottom sur-
face of a tank.
When sand or slime deposits are expected to form,
mount the pump on a surface raised from the bot-
tom level so that abrasive matter is not lifted.
2.2. Pump in the suspended position
1. Electric power cable
2. Delivery pipe
3. safety rope or chain
4. Pressure gauge
5. Air vent valve
6. Check valve
7. Gate valve
Construction
with float switch
Construction
without float switch
Made in Italy
MONTORSO
MXS 305
Q min/max 1/4,5 m
3
/h
0705158995
H max/min 49/19 m
IP 68
n 2900/min
220∆/380Y V3~50Hz
cosø 0,85
3,3/1,9 A
XXXXXXXX
S1 l.cl. F 15 kg
0,75kW (1Hp) S.F.
VICENZA
Rated power
Head
Delivery
Pump type
Rotation speed rpm
Protection
Serial number
Certifications
Notes
Nom. motor current
Tension nominale - n° de phases - Fréquence
Operation Duty - Insulation class - Weight
Power factor
0.5
m
ma
x 2
0 m
mi
n 1
00
m
m
mi
n
3.93.007/1
140 mm
min
mi
n 2
m
mi
n 1
00
m
m
3.93.007/2
Max. 1000 mm
3.93.007/2
3
1
5
4
2
6
7
0.
5
m
m
ax
2
0
m
m
in
1
00
m
m
m
in
3.93.007/1
140 mm
min
m
in
2
m
m
in
1
00
m
m
3.93.007/2
Max. 1000 mm
3.93.007/2
3
1
5
4
2
6
7
6