Evoqua Wallace & Tiernan V-2000 Series, Manual

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Wt.025.055.002.Ua.iM.0814
ManUal Chlorinator - 500lB/24hr
33
eVoQUa W3t110693
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.
WARNING: TO AVOID POSSIBLE SEVERE PERSONAL INJURY OR EQUIP-
MENT DAMAGE WHEN USING HYDROCHLORIC ACID, OBSERVE ALL
SAFETY PRECAUTIONS RECOMMENDED BY THE ACID MANUFAC-
TURER/SUPPLIER.
i. Reassemble the valve stem (11) to the upper body (13) and replace
the valve seat O-ring (8) and diaphragm clamping O-ring (outer).
j. Bolt the flange in place with six bolts.
• Cleaning Poppet Check
a. Unscrew adapter (34) and remove O-ring (35). Discard the O-ring.
b. Remove poppet (21) and remove O-ring (23). Discard the O-ring.
c. Clean threads and O-ring grooves by soaking in warm water. Wipe a
thin film of Halocarbon grease on the O-rings and threads.
d. Install a new O-ring on the poppet and insert the poppet into the
holder.
e. Assemble the holder (34) to the injector body. Do not use excessive
force when tightening the adapter.
f. Replace the union nut O-ring (16) before reconnecting the gas line.
4.12.9 Cleaning 1" Fixed Throat Injector (Anti-Syphon) (See Dwg. 25.200.002.040)
NOTE: When removing O-rings, use a blunt tool to pull them out. Do not
damage the tightening surfaces. Apply a thin film of Halocarbon grease to
the new O-rings and to the threads.
a. Follow the directions in paragraph 4.12.8, Cleaning 1" Fixed Throat Injector
(Standard), Cleaning Injector Unit Diaphragm Backcheck.
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