41
WT.025.055.004.UA.IM.0814
MANUAL CHLORINATOR - 3000LB/24HR
EVOQUA
W3T109620
c. Remove spring (22) and wipe off any deposits found.
d. Reinstall spring and diaphragm assembly into bottom cap. Reassemble
bottom cap to body with union nut.
4.11.8
Cleaning 1" Fixed Throat Injector (Standard) (See Dwg. 25.200.002.030)
• Cleaning Injector Unit Diaphragm Backcheck
a. Turn off the gas supply. Allow the gas feeder to run until the float drops
and settles on the bottom stop.
b. Shut off injector operating water.
c. Take steps to prevent water flowing back toward the injector from the
point of application.
d. Unscrew stem (11) in the center of the top of the injector. Remove and
discard O-ring (5).
e. Wipe the surface of the spherical tip of stem with a clean cloth or pa-
per towel to remove any loose material. Soak briefly in 10% muriatic
(hydrochloric) acid if there are any deposits that do not wipe away
with plain water. If the spherical surface is indented, worn, eroded, or
scratched, replace valve stem (11).
WARNING: TO AVOID POSSIBLE SEVERE PERSONAL INJURY OR EQUIP-
MENT DAMAGE WHEN USING HYDROCHLORIC ACID, OBSERVE ALL SAFETY
PRECAUTIONS RECOMMENDED BY THE ACID MANUFACTURER/SUPPLIER.
f. Wipe a thin film of Halocarbon grease on the O-ring (5) before install-
ing it on the stem.
g. Look through the opening in the top of the injector with a flashlight and
examine the conical hole and O-ring in diaphragm screw immediately
below. If it is smooth and clean, merely reinstall the stem, making sure
the large O-ring is under the head. If the conical hole and O-ring show
film deposits, clinging particles, or a rough surface, disassemble the
injector. Unscrew the gas line union nut (15) and discard O-ring (16).
h. Remove six bolts and lift off injector flange. Carefully remove the
diaphragm assembly. Using a fine, pointed tool, pierce the O-ring (8)
and remove it from the valve seat (7). Clean the conical hole in the
diaphragm screw. Do not scrape with a knife blade or a tapered reamer.
Scrub out with a cloth plug. Dissolve resistant deposit with 10% muriatic
(hydrochloric) acid. It is not necessary to disassemble the diaphragm
to do this.
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Содержание SERIES V-2000
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Страница 116: ...CHLORINE HANDLING MANUAL Cl2 BOOK NO WT 025 000 001 UA IM 0614 W3T98244...