Holmatro IPU-S Serie Manual página 25

3 Description
3.1 Equipment
The pump is an independent, reliable power source to which hydraulic tools can be connected. The
electrical motor runs a radial piston pump that can build up pressure.
Each pump has 2 safety valves to limit the maximum pressure. The settings of one of the valves can be
changed to a lower maximum pressure by an Holmatro certified technician. The other valve is sealed
and can not be changed. If in doubt, consult the Holmatro dealer.
The IPU-S version is suitable for hydraulic tools with a control valve on the pump to be operated with
two push buttons on the tool.
3.1.1 Type designation
Example: IPU-S 12 W 25 E
/i
Digit Example
1-5 IPU-S
6-7 12
8 W
9-10 25
11 E
3.2 Product identification
Refer to Fig. 2.
/i
1 Connector (24 VDC) to control tool
2 Control valve
3 Quick-Lock coupler
4 Hydraulic oil tank
5 Hydraulic oil drain plug
3.3 Weight and dimensions
Refer to Fig. 3.
WARNING
Use a cart for pumps heavier than 50 kg.
IPU-S
Description
Industrial Pump for stationary application
Pump delivery capacity in second stage
12 = 1.2 l.min
18 = 1.8 l/min
32 = 3.2 l/min
Type of pump part
W = two stage
S = single stage
Volume of hydraulic oil tank
25 = 25 l
50 = 50 l
Type of drive
D = Electric motor, 230 V, 50 Hz, single phase
E = Electric motor, 400 V, 50 Hz, three phase
K = Electric motor, 220 V, 60 Hz, three phase
916.000.972_002
6 Hydraulic oil dip stick and filler cap
7 Hydraulic oil tank vent
8 Electric motor
9 Emergency stop button
10 On/off switch
EN
25