The new design
of the floating
impellers of the FP4 pumps
ensures low axial thrust on the
submersible motor.

The tight clearances efforlessly
handle sand and create
maximum life expectancy.

MADE IN ITALY

Materials
• impeller and diffuser in polycarbonate
• non-toxic rubber bearing bush
• ceramic bearing sleeve
• bronze/brass/AISI 304 top
.. and bottom casing
• shaft and other particulars in AISI 304.



Motor construction
• oil lubricated winding
• motor casing and shaft in stainless steel
• motor housing in nickel plated brass
• both radial and axial thrust bearing are
.. ball bearing type
• rotary mechanical seal with graphite/ceramic



Operating data
• capacity until 27 m 3/h
• head until 360 m
• power until 7,5 Kw
• max water temperature: 30 °C
• max sand content: 185 g/m3
• max starting per hour: 15
• min. reccomended head of water above
.. pump suc-tion: 1m

pump capacity in Max
efficiency range (m3/h)

FP4 A

( 0 - 2.1 )

-

FP4 B

( 0 - 3 )

( 0 - 4 )

FP4 D

( 1,2 - 4,2 )

( 2 - 6 )

FP4 E

( 1,8 - 5,4 )

-

FP4 F

( 2,4 - 9 )

( 5 - 12 )

FP4 H

( 4,2 - 12 )

( 6 - 15 )

FP4 L

( 9 - 21 )

( 12 - 27 )

The new generation of AP6 pumps
have been designed
to meet market requirements
and easy maintenance.



MADE IN ITALY

Operating data
• Capacity up to 78 m3/h ( 1300 I/1')
• Head up to 700 m
• Power up to 45 Kw (60 Hp)
• 50 & 60Hz, 2 poles
• Standard voltage:
.. 220V single phase (4")
.. 220 and 460V three phase (4"-6")
.. 220 and 500V three phase (6")
• Max water temperature 30° C
• Max quantity sand: 40 gr/m3
• Director of rotation: CCW facing delivery side
• Max starting per hour: 15
• min. reccommended head of water
.. above pump suction: 1m

Applications
• Domestic and industrial water supply
• Acqueducts
• Fire-fighting systems
• Pressurizing water system
• Shower and running irrigation
• Several plants

Materials
• Valve body and suction casing in inox niresist
.. nodular cast iron type D2B / bronze / AISI 304
• Bronze/rubber bearing bushes
• Thoroughly protected shaft (AISI 420)
• Wear rings, interstage diffusers, external jackets,
.. cable guard, suction strainer in stainless steel
.. (AISI 304)
• Radial impeller and diffuser in noryl

Motor construction
• Asynchronous motor with squirrel cage rotor
.. and water/oil lubricated winding
• Stainless steel motor casing and shaft
• Nickel plated brass/cast iron motor housing
• Ball bearing type radial and axial thrust bearings
• Rotary mechanical seal

AP6 B

( 0 - 15 )

( 0 - 21 )

AP6 D

( 7,2 - 18 )

( 0 - 24 )

AP6 E

( 12 - 36 )

-

AP6 F

( 12 - 36 )

( 12 - 42 )

AP6 H

( 18 - 42 )

( 18 - 60 )

AP6 I

( 24 - 54 )

-

AP6 L

( 30 - 66 )

( 30 - 78 )

Felsom produces high quality bronze and stainless steel submersible pumps like the AP6"and FP4" pumps in Italy.