15
1. General:
1.1 Scope
This operation manual is valid for the submersible waste water pumps
ZPG 71.
If the instructions of the operation manual
– especially the safety instructions - are not observed, or in case
of unauthorized modifications of the plant or the installation of non-original spare parts, the guarantee ex-
pires automatically. The manufacturer assumes no liability for damages resulting from such behaviour!
Manufacturer
: ZEHNDER Pumpen GmbH
Zwönitzer Straße 19
08344 Grünhain-Beierfeld
Manufactured sizes:
ZPG 71.1 W Ex
ZPG 71.2 D Ex
ZPG 71.3 D Ex
ZPG 71.4 D Ex
Status of the operation manual
: January 2014
1.2 Enquiries and orders:
In case of enquiries or orders, adress yourself to your specialist retailer.
1.3 Technical data:
ZPG 71.1 W
ZPG 71.2 D
ZPG 71.3 D
ZPG 71.4 D
Rated power
P
2
[KW]
1,6
1,7
3,2
3,2
Voltage U [V]
230
400
400
400
Frequency [Hz]
50
Rated current
Consumption I [A]
10,5
3,7
6,5
6,5
Drive n [min
-1
]
2800
Max. discharge flow Q
max
[m³/h]
37
37
53
42
Max. delivery height
H
max
[m]
19
19
25
31
Max. fluid temperature
t
max
[°C]
40
Pressure connection
(optional)
flange DN 50
Weight with cable [kg]
38
38
38
44
Duty ratio ED
S1 – continuous operation (flooded), S3 - 40 % (emerged)
Minimum fluid level
Bottom line of motor housing
Impeller with 40mm solids handling
Materials:
Motor housing ............... GG 20
Motor shaft ........................ ...............................1.4021
Pump housing ............... GG 20
Bearing flange ................... GG 20
Impeller ......................... GG 20
Floating-ring type shaft seal..........SiC (silicon carbide)
Auxiliary bearing flange . St 37-2
Other seals ........................ NBR, FPM
