(Ths 3484, Ths4272, Ths 4284 And Ths 4296) - Pentair THS Series Installation And User Manual

STEP 7: Final Adjustments
Once all piping is in place make any necessary adjustments and fully tighten all flange bolts.
Be sure to follow the bolt tightening pattern explained at the beginning of Section 2.0. Tighten
all Metallic type bolts to a maximum of 25 ft-lbs / Non Metallic to a maximum of 15 ft-
lbs / Non Metallic.
Note: All piping should be fully supported with adequate bracing and hangers
to prevent damage from weight and vibration.
STEP 8: Backwash Controller Installation
If a semi-automatic backwash controller was purchased, please refer to Section 3.2 of this
manual. If an automatic backwash controller was purchased, please refer to Section 3.4.
NOTE: There will be extra gaskets and isoplast hardware. This is to join the remaining
flanged connections of the filter system to any existing or new plumbing.
2.4 Dual Tank Face Piping Installation – THS 3484, THS4272, THS 4284 and
THS 4296 (6" Flange Connections)
The two tank face piping kit consists of:
(2) 6" 3-way diaphragm valves
(1) 6" 2-way diaphragm valve
(2) Influent/effluent headers
(1) Waste header
(1) Sightglass assembly (not shown)
(13) 6" Flange gaskets
(104) Isoplast bolts
(104) Isoplast nuts
(2) 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.
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
Diaphragm Valve Face Piping Kit Installation Manual
5/31/12
Pg. 15 of 52
Rev. F