Discharge Pipe And Pressure Tank Connections - Berkeley 5FL-L Manuel Du Propriétaire

Discharge Pipe and Pressure Tank Connections

To Household Water
System
Priming Port
Control Valve
From
Well
Relief Plug the
Valve AVC Port
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Figure 6: Pre-charged Tank
Connections
To Household
Water System
Air Volume
Control
Air Volume
Control Tube
Priming Tee
and Plug
Relief Valve
Pressure
Switch
Figure 7: Standard Tank Connections
PRE-CHARGE TANK CONNECTION (Figure 6)
If your system uses a Con-Aire (pre-charged) tank, it should be connected to
the pump as shown in Figure 6. The relief valve must be capable of passing
the entire pump capacity at 100 PSI pressure.
Check the pre-charge of air in the tank with an ordinary tire gauge. the pre-
charge is measured when there is no water pressure in the tank. Disconnect
power to the pump and drain the tank before checking the pre-charge. Your
pump has a 30/50 PSI switch, so the tank pre-charge pressure should be 28
PSI (that is, it should be 2 PSI lower than the cut-in pressure of the pressure
switch.
No AVC is required for a pre-charged tank; the 1/8" NPT AVC port on the
pump body should be plugged.
STANDARD TANK CONNECTION (Figure 7)
If your system uses a standard tank, connect it to the pump as shown in
Figure 7. The relief valve used with a standard tank must be capable of pass-
ing the entire pump capacity at 75 PSI pressure.
Connect the Air Volume Control (AVC) tube to the 1/8" NPT AVC port on the
pump body. Run the tubing from the pump's AVC port to the AVC mounted
on the tank. See the instructions provided with tank and AVC for details.
Use only Teflon tape or Teflon based joint compounds for making all
threaded connections to the pump itself. Do not use pipe joint com-
pounds on plastic pumps: they can react with the plastic in pump com-
ponents. Make sure that all pipe joints in the suction pipe are air tight as
well as water tight. If the suction pipe can suck air, the pump will not be
able to pull water from the well.
1A
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Sealing Surface
From
Well
Ejector Package includes both a shallow well venturi (Item 2) and a deep
well venturi (Item 3). See Figure 5 to determine your pumping conditions
and install appropriate venturi in ejector body (Item 1). Nozzle (Item 1A)
comes pre-installed in ejector body and works with both shallow well and
deep well venturis.
NOTE: If installing shallow well venturi, do not damage sealing face (See
drawing) or internal leakage may occur.
Sealing Pipe Joints
Ejector Package Installation
Shallow Well or Deep Well
Nozzle
2
Venturi
2 Venturi
Shallow Well Installation
Mounted directly on pump
1A Nozzle
Ejector Body
Assembly
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Deep Well Installation
Mounted down in well
4
3
Venturi
Nozzle
1A