Priming
• To completely prime models 1SV and 2SV it is necessary to fully
unscrew the pin located in the drain plug. See Figure 7.
DRAIN PLUG
WITH PIN CLOSED
• For installations with the liquid level above the pump:
• Close the discharge valve.
• Remove the vent plug and fully unscrew the drain plug pin,
1SV and 2SV only.
• Open the suction valve until liquid flows out of the vent plug
opening.
• Install and torque the vent plug to the values provided in the
"ENGINEERING DATA" section of this manual. Close the
drain plug pin, 1SV and 2SV only, and open the discharge valve.
• For installations with the liquid level below the pump:
• Install foot valve at suction end.
• Remove the vent plug and fully unscrew the drain plug pin,
1SV and 2SV only. With the provided vented funnel, completely
fill the casing with liquid.
• Install and torque the vent plug, close the drain plug pin, 1SV
and 2SV only, and open the suction valve.
DRAIN PLUG
WITH PIN OPEN
Figure 7
9