RF PUMS

Flexible impeller pumps

Information about the RF family

Rotary pumps with flexible impeller (elastomer rotor in nitrile-neoprene) with self-priming and made with cast iron, stainless steel and bronze.

The self-priming is ensured thanks to the constant flexion and straightening of the paddles on the impeller.

FOR SPECIAL PRODUCTS, CONTACT US FOR A CONSULTATION WITH NO COMMITMENT.

The flexion of the impeller’s vanes is partly controlled by an eccentric cam within the body of the pump, between the inlet and outlet holes, as well as by the thickness, material and configuration of the paddles.

The increase in volume between two adjacent paddles in the inlet orifice a gap is produced, which causes the liquid to enter this larger space.

The volumetric reduction in the outlet orifice, in turn, forces the liquid to be pushed out into the discharge pipe.

FOR SPECIAL PRODUCTS, CONTACT US FOR A CONSULTATION WITH NO COMMITMENT.

The flexible impeller pumps are used to move viscous liquids, which cannot be handled by centrifugal pumps, and liquids with a high abrasion content that require hardened contact surfaces for the rotating elements. They therefore handle a lot of industrial liquids, from the lightly corrosive to the highly acidic or alkaline, as well as corrosives that contain solids in suspension, liquids with the viscosity of water and those so viscous that they need the recipient to vibrate in order to make them flow.

EXAMPLES OF APPLICATIONS:

  • Bilge pumping
  • Tank pumping
  • Boiler descaling additives
  • Back-up in emergencies,
  • Circulation in nurseries
  • Engine cooling
  • Supply of fresh and salt water
  • Applying liquid fertilisers
  • Excavating pits for silos
  • Cleaning services on farms
  • Fuel and oil services for tractors and tankers
  • Drinking water treatment
  • Driving milking machines
  • Pumping out wells, ditches and cellars
  • Adaptation to tanker lorries
  • Auxiliary for loading disinfectant pumps
  • Equipment for cleaning and clarifying hydrocarbons
  • Cleaning sewage
  • Pool cleaning
  • Transfer of mineral and vegetable oils
  • Transferring dyes
  • Filling or emptying drums, etc.

FOR SPECIAL PRODUCTS, CONTACT US FOR A CONSULTATION WITH NO COMMITMENT.

The pumps in the RF family are used by our customers to transfer the following fluids:

CLICK HERE TO SEE THEM

FOR SPECIAL PRODUCTS, CONTACT US FOR A CONSULTATION WITH NO COMMITMENT.

SEE CATALOGUE
INSTALLATION AND MAINTENANCE
DETAILED DATA SHEET
RF family series

The details shown in the following table are indicative for fluids with viscosity of 375cSt.
FOR OTHER VISCOSITIES, CONTACT US FOR A CONSULTATION WITH NO COMMITMENT.

SERIES OPENING FLOW RATE l/h R.P.M. HEIGHT (m) POWER (kW) FLATS

RF 5800M


1/4″ 5.500 1.500 5 0,75
RF-60M Model


5.000 10
4.500 15
3.000 20
RF 5800


1/4″ 5.500

1.500

5 0,75
RF-60S Model

5.000 10
4.500 15
3.000 20
3.600

1.000

5
3.300 10
3.000 15
1.700 20
RF 5900


1/2″ 11.400

1.500

5 1,5
RF-70S Model

10.500 10
9.600 15
7.500 20
7.800

1.000

5
6.900 10
6.000 15
3.900 20
RF 6000


2″ 21.500

1.500

5 2,25
RF-80S Model

19.000 10
14.500 15
11.000 20
14.000

1.000

5
13.000 10
11.000 15
7.000 20
SEE ALL MODELS IN THE RF RANGE