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2.3 Dual Tank Face Piping Installation – THS 3461 (4" Grooved Tank
Connections)
The two tank face piping kit consists of:
(2) 4" 3-way diaphragm valves
(1) 6" 2-way diaphragm valve
(2) Influent/effluent headers
(1) Waste header
(1) Sightglass assembly (not shown)
(4) 4" Grooved Coupling Assembly
(2) 4" Flange gaskets
(2) 6" Flange gaskets
(24) Isoplast bolts
(24) Isoplast nuts
(16) 4" ¾-10 x 3 1/2" Zinc Plated Bolts
(32) Flat Washer, Zinc Plated
(16) Lock Washer, Zinc Plated
(16) Hex Nut, ¾-10, Zinc Plated
(1) Semi-automatic backwash
controller (See Controller
Installation Section)
Verify that all parts listed above were supplied before beginning installation. Replacement
parts can be ordered through your local distributor.
Prior to Installation see "Grooved Coupling Assembly Instruction" found on page 5.
IMPORTANT: Verify that the center to center dimension between the two tanks is correct.
Refer to Figure 1 on page 5 of the Tank Owner's/Operator's Manual for more information.
STEP 1: Level the tanks
Make sure influent and effluent flanges on each
tank are level. Shimming may be required to bring
the tanks to level with each other. Use a non-
compressible material placed under the tank
saddles. Further leveling may require the saddles
to be adjusted. Please refer to page 5 of the Tank
Owner's/Operator's Manual for more information.
Diaphragm Valve Face Piping Kit Installation Manual
5/31/12
Pg. 12 of 52
Rev. F
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