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| Operation Manual C 2214 | Functional principle of the vacuum regulator
Safety valve
If the inlet valve of the vacuum chlorinator does not close completely due to impurities, it is possible that an
excessive pressure develops in the vacuum piping system which causes undesired chlorination. To avoid this,
the safety valve is used. Even the lowest pressure causes the large working diaphragm
⑦
to move to the left.
Thus the spring
h
is compressed and the diaphragm disk
i
lifts off from the O-ring
n
. As a result a flow
tunnel opens at the diaphragm disk, and the excessive pressure escapes into the left chamber of the vacuum
chlorinator. The end of the blowdown pipe is run near the gas sensor. Thus an immediate alarm signaling is
ensured.
Residual pressure preservation
While emptying the chlorine cylinder, the cylinder pressure decreases until it is too low to remove the ball
④
against the spring
⑥
from the valve seat
⑤
. A residual pressure of approx. 0.1 bar remains in the cylinder.
Thus humidity cannot enter the cylinder during replacement. The humidity of the entering air would cause
the chlorine cylinder to corrode internally so that the chlorine gas could be contaminated. Consequently, the
residual pressure preservation helps to extend the operational life of the chlorine cylinder.
Pressure gauge
The C 2214 chlorinator is equipped with an optional pressure gauge for the indication of the cylinder pressure.
The unit in question has a splash-proof measuring mechanism in a plastic housing. In order not to damage the
pressure gauge by dirt particles, the chlorine gas is directed to it through an integrated filter
m
.
The measuring range of the manometer of -1...0...15 bar was chosen in order to allow a supervision of the
residual pressure maintenance.
3.3 Technical data
materials
chlorine-resistant materials such as nickel-plated brass, Hastelloy, PVC, FPM
max. capacity
up to 4000 g/h, depending on the flow meter
Setting ratio
1:20
operating vacuum
110 mbar (for 200 g/h)
Response pressure of safety
valve
30 mbar
display accuracy
+/- 6% of final scale reading
weight
3000 g
pressure stage
PN16
pressure connection
union nut W1“, G5/8, G3/4, 1.030-14NGO, Yoke
dosing connector
PE-tube d 8/12, 12/16
blowoff connection
PE-tube d 8/12
Tab.: 1: Technical data C 2214
