Evoqua V10K, Manual

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V10K V-NOTCH CHLORINATOR
WT.025.100.001.UA.IM.0614
19
EVOQUA W3T109612
If plastic flexible pipe is used, install it securely with clamps at the injector and
the application point.
CAUTION: In all cases the solution discharge line must be supported and
protected to avoid mechanical damage or kinking between the injector and
the point of application.
Rigid PVC pipe or Evoqua Water Technologies solution hose is required be-
tween the injector discharge and the point of application. The size depends
on the size of the throat and tailway used in the injector. Solution hose may be
connected directly to the injector tailway. If rigid PVC pipe is used, a piece of
straight pipe at least twelve inches long should be coupled to the end of the
injector tailway before any elbows, tees or Saunders valves are used. This will
prevent any flow disturbances that could affect the hydraulic performance of
tailway connections.
2.4 Gas Connection
WARNING: TO AVOID POSSIBLE SEVERE PERSONAL INJURY OR EQUIPMENT
DAMAGE, THE GAS CONTROL UNIT MUST BE CONNECTED TO A VACUUM
GAS SUPPLY ONLY. DO NOT OPEN THE CYLINDER OR DRUM VALVE UNTIL
THE SYSTEM HAS BEEN FULLY INSTALLED AND THE PRE-START CHECKS
HAVE BEEN CARRIED OUT.
To reduce the pressure from the gas tanks, regulating valves and a safety relief
valve are necessary (see typical installation). A vacuum regulator is connected
to the control unit inlet. Install the vacuum regulator as directed in separate
instruction book.
2.4.1 Gas Suction Line
The diameter of the vacuum line between regulating valve, control unit and
injector depends on the gas flow and the distance and must not exceed the
distance as determined on Dwg. 25.052.190.030.
If necessary, any size tubing or pipe can be installed which will not give more
than five inches of water differential between control unit and vacuum regulator
at maximum gas feed rate. Note that the equivalent length of the fittings must
be added to the tubing length to obtain the total equivalent length.
The piping must be sized as required to obtain a minimum of six inches of
mercury vacuum at the control unit.
When using polyethylene tubing, do not install it in narrow, poorly vented
protection pipes or in the ground to prevent the tubing from fast embrittling
under the influence of gas.
For gas supply installation details refer to the separate instruction book pro-
vided with vacuum regulator.
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