... INSTALLATION
HPW
IN SYSTEM WITH VARIABLE DISPLACEMENT HYDRAULIC PUMP
WATER RESERVOIR
PRESSURISED SUPPLY:
MIN. 1,5 BAR
MAX 10 BAR
INTAKE LINE:
SUCTION HEAD MAX. 3 M
LOAD SENSING WATER
PRESSURE CONTROL
HIGH PRESSURE TOOL
T
P
WP
S
HPW
HPW HYDRAULIC PORTS:
Pressure P,
the pressure line is to be attached to;
Return T
, the runback line is to be attached to.
HPW’ WATER PORTS:
INTAKE
S
, the water supply line is to be attached to;
WATER PRESSURE
WP
,
the delivery (pressure) line
is to be attached to.
PSI
bar
S
WP
P
T
WP
WP
S
P
T
WP
S
T
P
HPW-PUMP WITHOUT WATER
PRESSURE UNLOADER VALVE
ATTENTION !
Check the ports of your HPW-pump and connect it to hydraulic and pumping fluid circuits according to
their markings!
1.
If the hydraulic pressure line will be connected by accident to the return port and return line correspondingly
to the pressure port, it will not cause any harm to HPW-pump, however pump will not operate.
2.
Output power of HPW-pump depends on the pressure difference between pressures and return lines. The more
is the pressure in return line, the less is concerned pressure difference and output power of the pump. The
fact should be taken into account when certain numbers of machines are intended to be joined-up in series.
3.
Since the piston assembly reverses extremely rapidly (refer to the TECHNICAL SPECIFICATIONS), certain
oscillation can be imposed to the return line because of pressure pulsation. In order to reduce both pressure
pulsation and return line oscillation, the flexible hose with textile fabric cord is recommended to be used in
return line to protect from damage low pressure units, such as oil cooler.
4.
Prior to connecting HPW-pump to hydraulic circuit, compatibility of used equipment should be ensured.
Hydraulic pressure and flow rate produced by hydraulic circuit should meet values demanded by your
HPW-pump. Refer to the technical specifications.
HPW-PUMP EQUIPPED WITH WATER
PRESSURE UNLOADER VALVE
9/26
MAY CHANGE WITHOUT PRIOR NOTICE
STREET WASHING EQUIPMENT KPL 270 - 200 - 1250x8
May 2012