HIGH PRESSURE CLEANING

Choosing the right equipment, right detergent results
in faster, cleaner efficient results to satisfy any cleaning requirements.

High Pressure Cleaning Basics

The use of high pressure technology in wash machines has increased significantly in recent times. People often are reluctant to spend for new brushes on a regular basis, in addition having limitations on the shape and size of the vehicle to be washed. The provision and technology of providing an efficient cleaning solution is being further developed, and new models are brought into the market every year.

The combination of machines, cleaning detergent, safety and the cleaning process, providing the cleaning solution, is still the same.

Check out the information below as a guide for the cleaning process, used in high pressure Wash technologies.

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High Pressure Cleaners and Equipment

  • What is a high pressure cleaner?

    High pressure cleaner consists of a pump driven either by an electric motor or oil engine or any prime mover. The water can then be heated either by fuel oil, gas or electric heaters. The pump pressurizes the water to a high pressure thus increasing the pressure energy in the water. The nozzles at the exit converts the pressure energy into Kinetic energy i.e. high velocity.

  • Is more pressure better?

    No. Generally high pressure cleaners work at around 5 to 150 Bar but the discharge or volume of water is just also important. Today's machines use around 8 to 200 Litres per minute - too little volume and the cleaning effect (calculated in kW) is simply reduced.

  • What types of equipments available?

    High pressure cleaners can be split into four types:
    - Cold water cleaners
    - Hot water cleaners
    - Stationary and ring main cleaners
    - Specialist equipments

Detergents

There are two basic steps in using and applying a detergent:
- application of the detergent to the surface, allowing it to soak the dirt.
-High pressure cleaning and rinsing of the surface.

A good detergent will force in and soak into the dirt, until the high pressure water flushes the dirt and detergent off the surface. The efficient time between is the period between the two. Only dirt that has been properly soaked and absorbed the detergent can be efficienctly removed, and a suitable good detergent will keep the fat and oil emulsified so that they can be rinsed away

  • Water based alkaline
  • Water based neutral
  • Water based acid
  • Solvent based
  • Foaming detergents

The Process : Basics on cleaning

The more fats or oil contained in the dirt, the more need there is for a higher water temperature when high pressure cleaning. Water soluble dirt can be removed with cold water alone - there is not often any better result when cleaning water soluble dirt with hot water. However when cleaning fats, oils and pigments hot water gives a faster and cleaner result, while using less detergents than with just cold water.Always use recommended detergents, and read the manufacturers instructions carefully.

A dry surface will absorb detergent far better than a wet surface, however care should be taken in hot weather or conditions as the detergent can dry onto the surface - if in doubt wet the surface first.

Always do a test area first, and if there is a large area to clean - then do part of it at a time so that the detergent does not dry on.

Start at the bottom and work upwards"

Do not apply detergent from the top down. If you begin from the top the detergent will run down and form channels down the surface, and will cause streaking or lines on the surface. Though this changes based on the vehicle shape and size.

Make sure you rinse off any detergent thoroughly, to ensure all the detergent has washed away, otherwise some detergents can leave marks on the surface.

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