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The Warranty will not be considered in the following
cases:
- Whenever the use of the device does not conform to
EN
the instructions and information described in this
manual.
- In case of changes or variations made without authori-
zation of the manufacturer.
- In case of technical interventions executed by a non-
authorized personnel.
- In case of failing to carry out adequate maintenance.
1.5 Technical assistance
Any further information about the documentation, techni-
cal assistance and spare parts, shall be requested from:
Calpeda S.p.A. (paragraph 1.2).
2 TECHNICAL DESCRIPTION
Close-coupled self-priming shallow well jet pumps with built-
in ejector.
NG, NGL: version with pump casing in cast iron.
NGX: version with pump casing in stainless steel (AISI
304).
B-NG: version with pump casing and lanter bracket in
bronze.
(the pumps are supplied fully painted).
2.1 Intended use
For water and other clean liquids which are non-aggressi-
ve for the pump materials; for slightly dirty surface water.
Liquid temperature: 0 °C to +40 °C (from 0 °C to +35 °C for
NGL, NGX).
2.2 Improper use
The device is designed and built only for the purpose
described in paragraph 2.1.
Improper use of the device is forbidden, as is use
under conditions other than those indicated in
these instructions.
Improper use of the product reduces the safety and the
efficiency of the device, Calpeda shall not be responsible
for failure or accident due to improper use.
Do not use in ponds, tanks or swimming pools or
where people may enter or come into contact with
the water.
2.3 Marking
The following picture is a copy of the name-plate (see
Pic.1) that is on the external case of the pump.
0 Manufacturer
1 Type
2 Delivery
3 Head
4 Rated power
5 Supply voltage
6 Frequency
21
7 Nom. motor current
8 Rotation speed rpm
9 Operation Duty
10 Insul. class
11 Certifications
12 AAAA Year of
manufacture
12 XXXX Serial number
13 Weight
14 Notes
15 Voltage
16 % Load
17 Power factor
18 Efficiency
15
19 Protection
16
20 Motor Efficiency
17
21 Pump Efficiency
18
22 Capacitor
Pagina 8 / 64
0
Montorso (VI) Italy IT 00142630243
1
XXXXXXX
AAAAXXXXX
2
Q min/max X/X m
/h
3
3
H max/min X/X m
ESCC2900 MEI≥ XX η
XXXXXXXX
4
XX kW (XXHp)
S.F.
5
230∆/400Y V3~50Hz (XX μF) X/X A
8
n XXXX/min
S1
l.cl. X
V
%
cos
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
IEC 60034-1 IECX/X
3 TECHNICAL FEATURES
3.1 Technical data
Dimensions and weight (see technical catalogue).
Nominal speed 2900/3450 rpm
Protection IP54 (IP 55 Special construction)
Supply voltage / Frequency:
- up to 240V 1~ 50/60 Hz
- up to 480V 3~ 50/60 Hz
Sound pressure: < 70 dB(A)
Max. starts per hour: 40 at regular intervals.
Maximum permissible working pressure up to 100 m (10
bar), 80 m (8 bar) for NGL, NGX.
The max. inlet water pressure: PN (Pa) - Hmax (Pa).
3.2 Operating conditions
Installation in well ventilated location protected from the
weather, with a maximum ambient temperature of 40 °C.
4 SAFETY
4.1 General provisions
Before using the product it is necessary to know
all the safety indications.
Carefully read all operating instructions and the
indications defined for the different steps: from
transportation to disposal.
The specialized technicians must carefully comply
with all applicable standards and laws, including
local regulations of the country where the pump is
sold.
The device has been built in conformity with the
current safety laws. The improper use could
damage people, animals and objects.
The manufacturer declines any liability in the
event of damage due to improper use or use
under conditions other than those indicated on the
name-plate and in these instructions.
i
Follow the routine maintenance schedules and
the promptly replace damaged parts, this will
allows the device to work in the best conditions.
Use only original spare parts provided from
Calpeda S.p.A or from an authorized distributor.
Don't remove or change the labels placed on the
device.
Do not start the device in case of defects or damaged
parts.
Maintenance operations, requiring full or partial
disassembly of the device, must be done only
after disconnection from the supply.
4.2 Safety devices
The device has an external case that prevents any con-
tact with internal parts.
11
4.3 Residual risks
Made in Italy
The appliance, designed for use, when used in-line with
12
the design and safety rules, doesn't have residual risks.
4.4 Information and Safety signals
For this kind of product there will not be any signals on
14
the product.
4.5 Individual protection devices
During installation, starting and maintenance it is
11
suggested to the authorized operators to consider the
6
use of individual protection devices suitable for described
22
activities.
7
During ordinary and extraordinary maintenance interven-
10
tions, safety gloves are required.
9
Signal individual protection device
13
XX kg
IP XX
19
HAND PROTECTION
(gloves for protection against chemical, thermal
20
and mechanical risks).
NG,NGL,NGX Rev. 7 - Operating Instructions
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