1.3.5
Working fluid
During operation of the water ring pump, the pump must be continuously supplied with the
operating fluid. Ensure that the operating fluid is clean:
•
the working fluid must not contain solid inclusions;
•
the working fluid must not contain dissolved minerals that can precipitate (in
particular, oxides and salts of iron and calcium);
•
the working fluid must not react chemically with the pump materials;
•
the working fluid must be homogeneous (mixtures, suspensions, and emulsions are not
allowed).
Table 2 in the appendix shows the required flow rate for dry gases. To ensure that the pump
is supplied with sufficient liquid, keep the water pressure at least 1 bar higher than the gas inlet
pressure.
The working fluid will be consumed as the gas is pumped (for evaporation and splashing).
You can use a separator at the outlet to separate the pumped gas from the working fluid.
Some separators can return the working fluid back to the pump. In this case, the working fluid can
be reused.
It is recommended to use tap water with a mineral content (by dry residue) of no more than 1
gram per liter as the working fluid.
Remember that excessive mineralization of the working fluid causes minerals to precipitate
in the narrow channels of the pump's working chamber. As a result, the pump will fail, which will
void the warranty.
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