Description Of Available Control Options - Eaton Hydrokraft PVW 250 Operation Manual

Product Description

3.2 Description of available control options

3.2.1 DF control
General Description: Energy-saving hydraulic drives are
possible with pressure compensated pumps, especially in
combination with the loadsensing option.
Principle of function:
System pressure remains constant for the entire
volume flow rate. System pressure can be set manually,
hydraulically or electronically. The standard Hydrokraft
pressure compensator is pilot operated, has a remote port
and is very stable.
Maximum pump flow can be limited mechanically to
between 50% and 100% by a screw.
Circuit shown is just an example, other options available. For circuit of individual pumps please contact technical support
8 HYDROKRAFT OPERATION MANUAL PVW 250+360 E-PUIO_II001-E April 2021 www.eaton.com
A DF controlled pump can be combined with
following options:
Pilot operated by proportional valve (with el. card or
•
with on board electronis)
Pilot operated via remote port only option
•
Additional option for slow upstroke adjustment screw
•
for each of above options
Power control
•
Flow control
•
A – System port
B – Inlet port
L1, L2 – Drain port
L3
– Vent port for vertical mounting
L3.1, L8 – Air bleed port
L5 – Oil filling plug
MA – Gauge port, system pressure
ML
– Gauge port, case pressure
X1 – Remote port pressure
compensator
1 – Basic pump
2 – Connection plate for DF-control
3 – Pressure compensator,
main stage
4 – Pressure compensator,
pilot stage