IM 25.055AC UA (C/6-01)
AUTOMATIC CHLORINATOR - 3000LB/24HR
35
4.7 Injector
The injector is a highly important part of the gas feeder. Proper operation
of the system depends upon good injector performance. Each gas feeder
is equipped with an injector that is selected at the factory to suit the
installation conditions. Before shipment, the gas feeder is tested under
stated operating conditions to insure that it will deliver the required flow
of gas when operated under the hydraulic conditions specified on the USF/
W&T shipping order. If difficulty is experienced in obtaining the specified
capacity at time of installation, check the injector operating water pressure
and the backpressure to see that they conform with the values specified on
your order. If operating difficulties are encountered after the gas feeder has
been in operation, study the injector parts drawing so that you are com-
pletely familiar with the assembly of the injector before servicing.
4.8 Dirty Water Strainer
A strainer is required in the water line ahead of the injector to avoid
plugging of the injector throat ports by foreign material. If sufficient ma-
terial is allowed to build up on the strainer surface, the resultant pressure
drop across the strainer reduces the injector operating water pressure. If
the pressure drop is excessive, the injector will not be able to induct the
required gas flow. Regular periodic inspection and cleaning of the strainer
will minimize this possibility.
4.9 Installation of Throat and Tailway
The throat and tailway must be assembled as shown on the parts drawing.
If faulty injector action is suspected, inspect the gaskets and O-rings and
replace them if there is any doubt about their condition.
4.10 Removal of V-Notch Plug (See Dwg. 25.055.000.052)
NOTE: If desired, the V-notch plug can be removed from the front of
the module by removing the top front panel. Insert the fingertips of
one hand in recesses at lower front of the panel, hold the top of the
panel with the other hand, and swing outward and push upward.
a. Shut down the gas feeder and exhaust all gas as directed under para-
graph 3.2.3, Stopping - For Extended Periods.
b. Pull knob out and rotate to lower clamp as far as possible.
c. Disconnect clamp.
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