C 2211

Catalogue

Drawing Dimensions

Instruction Manual

Purpose of full-vacuum chlorinators Chlorine gas is important for the disinfection of potable and swimming pool water but also represents a source of danger as far as handling, transportation
and storage are concerned. Therefore the vacuum principle has been used in chlorination installations already for decades. According to this principle, the pressure of the chlorine gas is reduced to vacuum, and only then, if the vacuum is sufficient, will chlorine gas flow to the metering point.

The main safety aspect is that the escape of chlorine gas is actually avoided. Even in the case of a line rupture chlorine gas cannot escape but only ambient air can be primed.

Full-vacuum chlorinator C 2211
The full-vacuum chlorinator used as pressure reducing valve is of central importance for the safety in vacuum installations. For this reason the C 2211version has been designed in accordance with the latest findings. The device combines several functions in one housing:

(all numbers in brackets refers to the schematic diagram on the following page)

a) Vacuum regulation
In the initial position the ball (1) rests on the valve seat (2). It is pressed onto the seat by the locking
spring (3) and the chlorine cylinder pressure and closes the system. After switching on the ejector
(water-jet pump), a vacuum is generated. The vacuum applies a force to the working diaphragm
(7) of the full-vacuum chlorinator, which is directed to the right. This force is transferred to the valve ball
(1) by the valve rod (8) so that chlorine gas enters the vacuum system. If the vacuum breaks down, the
valve ball falls back immediately onto the valve seat and stops the chlorine gas supply.

b) Simultaneous delivery
The constant volume of chlorine gas delivered per hour from one chlorine cylinder must not exceed 1
% of the original contents. Consequently the maximum rate for e.g. a 65 kg cylinder is 650 g Cl2/
h. In most application, chlorine delivery from one cylinder is not sufficient because much more chlorine
is required than 650 g Cl2/h. In these cases, chlorine is supplied simultaneously from several cylinders in so-called battery operation.