MR 21 RC0 pages

BUL 02010

System of vacuum
regulators
series

MR 21 RC

General:
The MR 21 RC System of Vacuum Regulators is designed for dosing gas chlorine and with
minor alterations also for other gases, working on
the indirect vacuum principle.
The MR 21 RC system consists of two
M 20 C vacuum regulators, an M 400 automatic
vacuum switch-over, an M 300 C ejector and an
M 200 C rotameter.
Dosing can be set manually by means of
the dosing valve on the regulator. It starts or stops
when the the ejector pump switches on or off.
The MR 21 RC system can be extended by
additional rotameters which have to be installed
parallel to the existing one. This way the system can
be extended to several dosing points, but in this case
a suitable ejector must be added to it. When adding
rotameters to the system, attention must be paid not
to exceed the capacity of the regulator. The MR 21
RC system ensures uninterrupted dosing even when
the cylinder has been emptied or there are several
cylinders connected to the collector line. When the
cylinders are empty, the automatic switch-over
switches vacuum over to the regulator that has full
cylinders. In this way the system functions without
interruption. The empty cylinders can be replaced
without having to stop the system of water disinfection.

1. Chlorine cylinder
2. Vaccum regulator
3. Ejector
4. Booster pump
5. Switchover module
6. Rotameter

Dosing devices for aggressive gases and fluids / Dosing devices for gasses / Systems of Vacuum regulators

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