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Installation
Operating Cycle
(Figure 2)
Step 1. Tank nearly empty – air expands filling area
above bladder (Figure A).
Step 2. Water enters tank – air is compressed above
bladder as it fills with water (Figure B).
Step 3. Pump-up cycle completed – air compressed to
OFF setting of pressure switch (Figure C).
Step 4. Water drawn from tank – compressed tank air
forces water out of bladder (Figure D).
Step 5. Bladder empty – new cycle ready to begin
(Figure A).
A
C
WATER
Figure 2
Installation
Connect discharge pipe from pump to a tee. Connect
one side of tee to tank flange and the other side of tee to
service. Use plastic or steel pipe as required. To prevent
leaks, use
Teflon™ tape or
1
threads of all threaded connections to tank.
NOTICE: To be sure pipe joints are not cross-threaded
and all threads are clean, make connections by hand
(without sealer) first. When threads are clean, remove
pipe, add Teflon™ tape or Plasto-Joint Stik
connection. Tighten by hand first; finish with pipe wrench.
When installing a nipple in the plastic tank flange, tighten
it hand tight plus 1-1/2 turns with a pipe wrench.
DO NOT OVERTIGHTEN!
Standard Tank Replacement
When replacing standard tank in a water system with
pre-charged tank, no bleeder orifices or Air Volume
Control (AVC) are required. When sizing a pre-charged
tank to replace a standard tank, the tanks should have
equivilant drawdowns.
E. I. DuPont de Demours and Company Corporation, Delaware
1
Lake Chemical Co., Chicago, Illinois
2
For parts or assistance, call Simer Customer Service at
B
WATER
D
WATER
Plasto-Joint Stik
on male
2
®
, and remake
®
Hazardous voltage and hazardous
pressure. Disconnect all power to pump and bleed all
pressure from system before working on pump, tank, or
piping.
For jet pump installation, remove AVC tube from port
in pump body or jet body and plug port (see Figure 3).
New pumps come with plug installed.
Figure 3: Plug AVC Port when installing pre-charged tank on
existing pumps. New pumps come with plug Installed.
NOTICE: When working on submersible pumps in wells
be sure safety rope is solidly connected to pump and to
secure anchor at the well head at all times. Do not drop
the pump down the well!
bleeder Orifices
(Figure 4)
NOTICE: For submersible pump installations, there may
be bleeder orifices in the vertical discharge pipe. When
the bleeder orifices are functioning correctly, they add
air to the water in the system. They must be removed and
the tees plugged when a pre-charged tank is installed
in the system. To do this, raise the pump and discharge
piping enough to bring the bleeder orifices clear of the
well. Remove the bleeder orifices from tees and replace
with plugs (see Figure 4). Bleeder orifices may be any of
several sizes. Have a pair each of 1/2", 3/4", and 1" plugs
available. Replace pump and reconnect the discharge
pipe.
Adjusting Tank Pre-charge
In areas where temperature is high for long periods of
time, tank pre-charge pressure may increase. This may
reduce tank drawdown (amount of water available
per cycle). If this occurs, adjust pre-charge pressure
according to Chart 1, page 2.
Flush all air out of piping system and water reservoir
portion of pre-charged tank. Required on: new
installations, pumps requiring repriming, and pumps
disassembled for service. Do as follows:
1-800-468-7867
3
148 0893
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