Kärcher HDC Series User Manual

6 Deutsch 5.962-786.0 Rev. 05 (06/13)
To loosen a dirt particle, the impact force is less im-
portant than the impact pressure, i.e. the impact force
per surface unit. This is the pressure, with which the
water jet hits the surface to be cleaned.
The impact pressure depends on the spray distance,
spray angle, nozzle pressure and delivery rate. The
nozzle pressure is determined by the delivery rate
and the nozzle diameter. The pump pressure is also
determined by the delivery rate and the nozzle diam-
eter, but must also compensate the interior resist-
ance (line resistors).
1 Float tank
2 HP pump
3 HP hose
4 Spray unit
A Network water pressure
B Pump pressure
C Pressure at appliance outlet
D Nozzle pressure
E Impact pressure
1.1.1 Impact pressure

Kärcher HDC Series Specifications

General

Brand	Kärcher
Model	HDC Series
Category	Pressure Washer
Language	English