FP USER INSTRUCTIONS ENGLISH 71576286 - 07/06
5.3 Priming and auxiliary supplies
Where there is any risk of the pump being run against a closed valve generating high liquid and casing external surface temperatures it is recommended that users fit an external surface temperature protection device.
Ensure all electrical, hydraulic, pneumatic, sealant and lubrication systems (as applicable) are connected and operational.
Ensure the inlet pipe and pump casing are completely full of liquid before starting continuous duty operation.
These operations must be carried out by personnel with approved qualifications.
5.3.1 Priming of a flooded pump
a)As discharge valve is closed, fill the pump by opening the valve at suction.
b)Let air escape by removing the plugs situated on the flange of the discharge casing and suction casing (for the 122, 152 to 202 FP pumps). For the 50 to 125 FP pumps, plugs are located on pipework.
c)The discharge pipe is headed and there is a by- pass valve on the check valve, open slightly the discharge valve and the
d)When the pump is totally free of air bubbles, replace the plugs.
Air escape 
Air escape 
Priming of a flooded pump
5.3.2 Priming of a sump suction pump
* With foot valve:
a)Fill suction pipe and casing with liquid from an independent source (pressure 1 to 2 bars).
b)Let air escape by removing the plugs situated on the flange of the discharge casing and suction casing (for the 122, 152 to 202 FP pumps). For the 50 to 125 FP pumps, plugs are located on pipes.
c)When the pump is totally free of air bubbles, replace the plugs.
Air escape 
Air escape
Priming of sump suction pump with foot valve
*Without foot valve:
Priming may be accomplished by means of venting system.
Foot valves are not recommended when the pumped liquid has suspended solid particles. They may lodge between foot valve seat and shutter.
5.4 Starting the pump
5.4.1Bring controls and preparation before the first starting and after each service call
Necessarily:
a)Check the tightening of the different plugs.
b)Check that the gland lightly tightens the packing rings.
c)
Risk of seal ring overheating.
d)Check the direction of rotation of the motor. Refer to the rotation arrow of the pump.
e)
Install all protection systems and more particularly the coupling guard and the shield grid (reference [9331]) of the bearing.
f)Open all suction valves (if existing).
g)Close the outlet valve and the bypass valve.
h)Ensure inlet pipe and pump casing are completely full of liquid.
5.4.2 First pump
Suction valves must be fully open when pump is running. Never run the pump dry, it will cause damage.
Page 18 of 35