Grundfos ALLDOS KM 251 - General; Introduction; Information about the Product; Pump Types

KM 251 en
6 15.720148-V1.0
1 General
1.1 Introduction
This operation manual contains all the information required for starting up and handling
the described KM 251 pump.
If you require further information or if any problems arise, which are not discussed in
detail in this operation manual, contact ALLDOS directly for the information needed.
ALLDOS Eichler GmbH
Reetzstr. 85
D-76327 Pfinztal (Söllingen), Germany
The ALLDOS service centre can be reached via our fax service or hotline:
Fax: ++49 (0) 61-211 - Reference "Quality Service"
Hotline: ++49 (0) 61-230
1.2 Information About the Product
1.2.1 Pump Types
The KM 251 piston diaphragm dosing pump is available for a variety of power ranges in
various sizes:
Pump types and designation see type plate
The following is indicated on the type plate of the pump:
• The pump type
specifies the stroke volume, connection size, performance data (see below).
• The serial number of the pump
which is used to store and access the pump configuration at ALLDOS.
• The most important characteristics of the pump configuration
e.g. for dosing head and valve materials, they are described in the "Product Descrip-
tion and Accessories" section.
• Maximum flow rate, maximum counterpressure
• Mains frequency
The following is indicated on the type plate of the pump drive:
• required energy
• mains frequency
• power consumption
• degree of protection
1.2.2 Pump Performance
Performance data at maximum pump counterpressure
Type 50 Hz 60 Hz 100 Hz
Singlepump Doublepump
Q*
[l/h]
p max
[bar]
stroke
value
[n/min]
Q*
[l/h]
p max
[bar]
stroke
value
[n/min]
Q*
[l/h]
p max
[bar]
stroke
value
[n/min]
251-2,4 251-2,4/2 2,4 10 14 2,9 10 17 5 10 29
251-5 251-5/2 5 10 29 6 10 35 10 10 58
251-13 251-13/2 13 10 63 16 10 75 25 10 126
251-19 251-19/2 19 10 96 23 10 115 — — —
251-24 251-24/2 24 10 120 — — — — — —
251-2,3 251-2,3/2 2,3 16 14 2,8 16 17 4,5 16 29
251-4,9 251-4,9/2 4,9 16 29 5,9 16 35 9,8 16 58
251-12 251-12/2 12 16 63 14 16 75 24 16 126
251-18 251-18/2 18 16 96 22 16 115 — — —
251-23 251-23/2 23 16 120 — — — — — —
251-2,2 251-2,2/2 2,2 25 14 2,6 25 17 4,4 25 29
251-4,5 251-4,5/2 4,5 25 29 5,4 25 35 9 25 58