NA-05 - Cleaning: Cleaning Nozzles

Damage due to high pressure cleaning

Damage due to high-pressure cleaning – Risk factors

Image: 
Damage caused by high-pressure cleaning [Source: STEIN Ingenieure GmbH]

 
Image: 
Nozzle in operation [Source: STEIN Ingenieure GmbH]

 

 

Image: 
High-pressure cleaning vehicle [Source: STEIN Ingenieure GmbH]

 

Channel

  • Material (ductile, brittle, tensile breaking point)
  • Nominal size
  • Wall thickness
  • Quality of the bedding
  • Structural condition

Nozzle

  • Nozzle type
  • Nozzles weight
  • Number and diameter
  • of nozzle openings
  • Type of nozzle inserts
  • Jet deflection in the nozzle

 Cleaning

  • Nozzle insertion and return speed
  • Number of cleaning cycles
  • Nozzle jet pressure
  • Jet angle and distance of the nozzle to the pipe wall
  • Flow rate and volume
  • Malfunctions

 

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