7.3 Requirements relating to system components
WARNING!
Material damage due to the use of unsuitable
materials for system components, which come into
contact with ozone.
– Use ozone-resistant materials for all compo‐
nents of the system, which come into contact
with ozone, either as a gas or in an aqueous
solution.
– All materials, which come into contact with
ozone and/or pure oxygen, must be completely
free from oil and grease.
This can result in material damage, particularly
with pipework systems, reaction vessels (reaction
section) and filters and parts which carry exhaust
gas.
7.3.1 Mixing modules (accessory)
The best results can be achieved if the mixing modules are
selected according to the flow rate of the raw water.
Fit a stainless steel pipe fitting or a PTFE pipe for gas and a non-
return valve directly at the inlet of the mixing modules to connect
the ozone outlet of the OZONFILT
®
OZVb 1-4 to the feed point into
the raw water (at the point of injection).
ProMinent uses stainless steel or PVC mixing modules, with inte‐
gral non-return valve made of high-alloy stainless steels.
The non-return valve prevents damage to the OZONFILT
®
, which
can be caused by the backflow of raw water into the gas system.
Install the mixing module in such a way that the non-return valve is
easily accessible for service and maintenance. Moreover, fit the
non-return valve vertically so that it can operate properly.
Please refer to the "Technical data" chapter for further information
on ProMinent mixing modules and on the permissible pressure at
the ozone point of injection.
CAUTION!
Electronic components can be damaged by fre‐
quent exceeding of the maximum permissible pres‐
sure at the ozone outlet.
A safety shut-down is the result of the maximum
permissible operating pressure being exceeded.
Very frequent safety shut-downs can damage elec‐
tronic components of the control.
Avoid too frequent exceeding of the maximum per‐
missible pressure at the ozone outlet.
Assembly and installation
31