NA-05 - Cleaning: Cleaning Nozzles

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Definition and range of application
Fundamentals
Characteristics
Nozzle types
Nozzle inserts
Pulling force – Water jet force, Number of nozzl...
Pressure losses
Number of cleaning cycles
Damage due to high pressure cleaning
Resistance to the stresses of high pressure cleani...
Use of cleaning nozzles
Practical recommendations
Summary

Pulling force – Water jet force, Number of nozzle inserts, Jet angle

Jet force

The jet force at the nozzle is dependent on:

Flow rate
Speed of the water jet.

It can be calculated using the following equation:

p_dyn = dynamic pressure at the nozzle opening
ρ_water = water density
v₀ = water velocity at nozzle opening

[Geib2002]

Geib2002

Geib, M.; Wielenberg, W.: Reinigung von Abwasserkanälen durch Hochdruckreinigung. Schriftenreihe aus dem Institut für Rohrleitungsbau an der Fachhochschule Oldenburg (iro), Band 11, 2. Auflage, Hrsg.: Prof. Dipl.-Ing. Joachim Lenz, Vulkan-Verlag, Essen (2002).