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5. Performance Data
Under performance data Scanjet presents Effective Jet Length.
Effective Jet Length is defi ned as the distance between the nozzle and the tank
surface where the jet achieves 250 mm water column (50lbs/sqr.ft) impact force
at tank surface. The Effective Jet Length is measured at horizontal and static
conditions.
The Jet Length is affected by a lot of different factors such as rotation speed of
the machine (velocity of the jet at the tank surface), temperature of the cleaning
media, cleaning agent used and so on.
The vertical jet length can be estimated to be approximately 1/3 less than the
horizontal jet length.
The following graphs show the fl ow, effective jet length (radius) and complete
cleaning time for each combination of inlet pressure and nozzle diameter. Other
nozzle diameters and maximum jet lengths are available upon request.
Please note that when equipped with non-return check valve, the fl ow will
decrease an estimated 10%.
Flow vs Pressure
The inlet pressure has been measured at the machine inlet. In order to achieve
the same performance as indicated in these curves the pressure drop in the
supply line must be taken into consideration.
4
5
6
7
8
9
10
5
15
25
35
45
4XØ7 mm
4XØ8 mm
4XØ9 mm
psi
bar
m³/h
4XØ6 mm
60
80
100
120
140
50
100
150
200
4XØ10 mm
USgpm
