Self-priming electric pumps

PLDa Horizontal Shaft Electric Pumps for Transporting Heavy Liquids

For industrial/civil/purification/hydrocarbon transfer plants

Technical data

  • Flow rate:from 3 to 105 m³/hour
  • Head: up to 100 m
  • Liquid temperature: up to 350 °C
  • Operating pressure: up to 40 bar
PLDa Horizontal Shaft Electric Pumps for Transporting Heavy Liquids
PLDa Horizontal Shaft Electric Pumps for Transporting Heavy Liquids


FICEM PLDa series self-priming electric pumps are monobloc pumps with a horizontal shaft, an incorporated check valve and direct coupling to the motor. The pump body and the impeller are made of cast iron with a considerable thickness, the latter having two wide open channels in order to offer the greatest possible space for passing bodies and is cantilevered to the shaft. The pumps are equipped with a three-phase asynchronous electric motor (single phase up to 2.2 kW), with external fan cooling, IP55 rating, class F insulation, 2RS oversized, self-lubricating ball bearings.

The pump shaft is connected to the motor directly, without joints, reducing vibration to a minimum. The whole range is available with pipe thread connections for quick coupling to the system piping, preventing any dripping or leaking of liquids.

The electric pumps use an unbalanced mechanical seal, supplied by a leading Italian manufacturer. For special projects, it is possible to supply PLDa series electric pumps with a double automatic sealing device, housed in a chamber containing liquids or solids, which also prevents any accidental leaks of fluid from the pump body.

Materials (standard version)



Pump body
Pump shaft
Motor/pump spindle
Mechanical seal

Cast iron EN-GJL-250
Cast iron EN-GJL-250 // Bronze CuSn5Zn5Pb
Stainless steel AISI 413
Cast iron EN-GJL-250
Carbon/Silicon carbide/EPDM

Mechanical seal

Two types of unbalanced mechanical seal are available:

Type 3
The type 3 mechanical seal is an inexpensive, highperforming seal, with interchangeable components.
The standard Ceramic/Carbon pairing gives this type of mechanical seal a wide variety of uses, even with impure liquids.
The possibility to replace the wear rings minimises maintenance costs.
The metal components are made of stainless steel.

Type 5
The main characteristic of this mechanical seal is the ability to mount any type of elastomer. Furthermore, it is particularly suitable for heavy-duty uses such as the offsetting or misalignment of the structure in which it is used.

Mechanical seal specifications


Type 3

Type 5

Metal part
Fixed part
Rotating part

from Ø10 to Ø40
Stainless steel
Silicon carbide

from Ø10 to Ø80
Stainless steel or superalloy with anti-corrosion property
Metallised carbon
Alumina ceramic

Specific mechanical seals are available for liquids containing suspended abrasive particles.


The whole range of FICEM PLDa pumps is available with pipe thread connections and, on request, PN16/40 threaded or weld-on counter flanges and sets of nuts, bolts and gaskets are supplied


In order to adjust performance on the basis of requirements, it is possible to use the PLDa series pumps, connecting them to control systems which provide continuous performance adjustments based on needs. The maximum rotation speed is set at 3500 rpm.

Product features and advantages

Optimised hydraulics
The geometry of the impellers and the pump bodies guarantees high levels of efficiency and reduced energy

Highly efficient motors
The whole electric pumps production range uses excellent quality electric motors with the EFF2 class of efficiency.
Motors with class 2 efficiency (EFF2) guarantee reduced energy consumptions.

Ease of maintenance
If it is necessary to take the pump apart, it is extremely easy to take out the motor body, without having to disconnect the
pump body from the piping.
FICEM electric pump impellers are equipped with special threaded holes in order to facilitate their removal from the relative shafts.

Anti-corrosion treatment and final painting
All the components which come into contact with fluids in FICEM electric pumps are treated with a special corrosion inhibitor:

  • Pickling and alkaline cleaning of the components
  • Zinc phosphate primer
  • Two coats of epoxy paint (120µ)
  • Oven drying at 250 C°

On request, paints suitable for use in the naval and iron and steel sectors can be.