11
SX218 (03/09/20)
INSTALLATION/OPERATION
PRIMING THE PUMP
Installations with Flooded Suction
1. Open air vent (or pipe plug) in the highest tapped opening in
pump case.
2. Open inlet isolation valve, allowing water to fill the pump
completely and force all air out through vent.
3. Rotate shaft slowly allowing any air trapped in impeller to escape.
4. Close vent opening when water without air emerges.
Installations with Suction Lift and Foot Valve
1. Close air-tight valve on discharge.
2. Remove pipe plug from highest opening on pumpcase.
3. Completely fill pump and suction piping with water.
4. Rotate shaft slowly allowing any air trapped in impeller to escape.
5. When all air has been forced out of pump, replace pipe plug. Use
PTFE pipe thread sealant tape on plug threads and tighten as
necessary to prevent leakage.
Installations with Suction Lift and Priming Pump
1. Close air-tight valve on discharge.
2. Han-Dee Primer operation:
• Open Han-Dee Primer isolation valve.
• Work handle of Han-Dee primer up and down to evacuate air
from the suction line. (refer to primer owner’s manual for more
information.)
• When water flows freely from primer, close Han-Dee Primer
isolation valve. Pump case should now be filled with water.
3. Immediately start pump.
4. Slowly open discharge valve (if used) until desired flow is achieved.
(Discharge priming valve will open automatically.)
Starting:
Risk of burns. Never run the pump dry. Running pump
without water will overheat pump and damage internal parts. Always
make sure pump is primed prior to start-up.
NOTICE Refer to maintenance section if pump has packing for
adjustment prior to start-up.
At initial start, prime pump as described in “Priming The Pump”. Turn
on power to pump. Slowly open discharge valve until desired flow rate
is achieved. If equipped, place the “Hand-Off-Auto” selector switch in
the “Auto” position. The pump will start automatically when the pilot
device signals the motorstarter.
Stopping:
Pump will stop automatically when the pilot device de-energizes
the motor starter. Turn the “Hand-Off-Auto” selector switch to “Off”
position if you want to stop the pump while it is running. Adjust the
discharge valve to minimum flow before stopping the pump to reduce
the effects of hydraulic shock (water hammer).
OPERATION
NOTICE Do not start or run the pump dry. Damage to the
mechanical seal may result.
• Wear safety glasses at all times when working on pumps.
• Do not allow pump or any system component to freeze.
To do so will void the warranty.
• Periodically inspect pump and system components.
RE-PRIMING THE PUMP
Under normal conditions the pump and piping system will maintain
prime. Small leaks or infrequent use may cause the system to lose
prime. To re-prime the pump, see “Priming The Pump”.
Suction to Water
Source
Discharge
Priming Valve
Primer Isolation
Valve
Han-Dee
Primer
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