Overview of the cleaning process
High pressure cleaning
Combined flushing / vacuum unit
Hoses
High-pressure flushing hose – Protection against damage
Image:
Protective hose guide - on the vehicle [Source: STEIN Ingenieure GmbH]
During cleaning procedures in sewer systems, high-pressure flushing hoses are exposed to mechanical stress due to internal pressure, as well as tensile, bending and frictional forces. In practice, guide rollers or hose guides are used to reduce these stresses. They help guide the flushing hose and the nozzle to a horizontal position in the sewer without kinks, therefore avoiding hose contact at the edges of manholes and pipes.
Image:
Protective hose guide - in the manhole [Source: STEIN Ingenieure GmbH]
Image:
Hose roller/guide in use [Source: STEIN Ingenieure GmbH]
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