NA-05 - Cleaning: Vehicles and Technology

Table of contents

Hoses

High-pressure flushing hoses (3)

The nominal size of the hose is dictated by the actual flow rate. Generally, municipalities and water utilities have their guidelines and standard specifications. For example, City of Windsor's Standard Specitications S19: Cleaning of Gravity Sewer, Manholes and Catchbasins [[S19]].

Table: 
High-pressure flushing hose size in relation to the flow rate [DIN30705:1991][FI-Hugo]
Flow rate [l/min]
Nominal size of the hose [DN]
Nominal size of the hose [Inch]
up to 200 l/min
DN 19
3/4"
more than 200 l/min up to 325 l/min
DN 25
1"
more than 325 l/min up to 650 l/min
DN 32
1 1/4 "
more than 650 l/min up to 800 l/min
DN 38
1 1/2 "
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