IM 25.055AC UA (C/6-01)
AUTOMATIC CHLORINATOR - 3000LB/24HR
25
force of the spring (K) through the diaphragm (L) and the attached
linkage, exerts a pull on the diaphragm (G) and holds the seat (H)
closed. When the three-way valve is in the ON position, pressure from
the chamber (C) is transmitted to the diaphragm (L) and the injector
operates as described above.
3.3.2 2" Injector Intermittent Start-Stop Operation (See Dwg. 25.100.181.021)
When the injector is connected to operate in conjunction with a pump, a
solenoid valve is added so that, when the three-way valve is in the START-
STOP position, electrical operation of the solenoid performs the same
function as manual operation of the three-way valve as previously de-
scribed. When the solenoid is energized, water passes from the injector
water supply through the strainer (M), then through the solenoid (N) and
the three-way valve to the chamber (C). When the solenoid is de-ener-
gized, the water supply is cut off and the exhausted port is opened, permit-
ting the pressure chamber (C) to be relieved to waste.
3.3.3 2" Injector Prime and Flush Operation (See Dwg. 25.100.181.031)
In applications such as the intermittent desliming process, it is desirable to
run water through the system before and after chlorination. This is accom-
plished with a two-solenoid system. Operation is a follows: Both three-
way valves are set in the START-STOP position. Energizing only the
right-hand solenoid (WV) passes water to the chamber (C) causing the
plug in the injector to open and water to flow through the injector for
priming. The injector suction shut-off unit prevents the flow of gas until the
chlorination period when the left-hand solenoid (CSV) is energized. At the
end of the chlorination period, the left hand solenoid is de-energized and
the injector shut-off unit stops the flow of gas. Water continues to flow
through the injector for flushing until the end of the cycle, when the right-
hand solenoid is de-energized. Operation of the solenoids is usually ac-
complished by use of a program clock in which each portion of the cycle
may be fixed by setting adjustable cams.
To Next Page
Loading...