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FL

Positive Displacement Pump

Rotary lobe pump - Gentle pumping with great suction.

Fristam FL Series Positive Displacement Pumps: Gentle, Efficient, and Designed for Hygiene

Looking for a high-performance positive displacement pump that combines efficiency, gentle product handling, and superior hygiene? The Fristam FL Series offers a range of hygienic pumps designed to meet the diverse needs of industries such as food and beverage, pharmaceuticals, biotechnology and cosmetics.

Technical Details:

  • Discharge pressures up to 12 bar
  • Flow rates up to 70m3/h
  • Viscosities up to 100,000cP
  • Pumping horizontally as well as vertically and allow for top, bottom or side mount on certain models.
  • Various types of connection, such as flange, clamp or thread, can be chosen. Connections sized DIN 15-125 are available.
  • Bi-directional rotation, which ensures complete flexibility of installation.

Key Benefits of the FL Series:

Gentle Product Handling

  • Bi-wing / two wing rotor: A low-slip bi-wing rotor that maintains efficiency even on low viscosity products (such as CIP). Smooth flow and gentle handing for a range of delicate products.
  • FL3’s helical tri-wing rotor: Ensures an ultra-smooth, low pulsation flow for even the most sensitive products as well as increased suction abilities.
  • FL / one wing rotor: Provides space around the lobe for shear sensitive products, transferred with minimal damage.

High Efficiency:

  • All of the FL series’ pumps have a state-of-the-art system of low-slip lobes rotating free of contact in opposite directions, ensuring high efficiency even with low viscosities or at high temperatures.
  • The FL3’s high-speed operation (up to 1000rpm) allows for increased flow rates and reduced pump sizes for low-pressure applications.

Superior Cleanability:

  • The hygienic design of both models supports effective Clean-in-Place (CIP) processes. Running at high speeds to CIP itself without requiring additional pumps, pipes, or valves.

Ideal Applications:

  • Food & Beverage: Sugars, oils, fruit puree, salad dressings, chocolate sauce, orange juice concentrate, dairy products like butter, cheese curd, and sour cream.
  • Pharmaceutical & Biotechnology: Sterile fluids, suspensions, yeast, glucose syrup, blood, cell cultures.
  • Cosmetics & Personal Care: Body lotions, creams, cosmetics.

Optional Features:
ATEX certification, electrical heating, special paint, custom surface finishes, electro polishing, rectangular connections, heating jackets, drains, and other individual adaptations to suit your process, product, and system needs.

Helical / Tri-Wing Rotors – Pulsation free, for delicate handling.

Constant flow for incredibly gentle handling of thin products with increased suction. Typical applications: Brewers yeast, cell cultures, wine and glucose.

Bi Wing/Two Wing Rotors – Low Shear Applications

The standard in our FL series, this low-slip bi-wing rotor maintains efficiency even on lower viscosity products, or when trimmed for handling higher temperature mediums.

Due to its low shear it is ideal for products like cream cheese, dough, honey, yogurt and other viscous products.

D Lobe/One Wing Rotors

Provides space around the lobe for shear sensitive soft solids and transfers them with minimal damage. Typical applications: Cooked fruit & vegetables, pasta shapes, baked beans.

A technical overview

Max. Discharge
Pressure (Bar)
6 – 12
Max. Flowrates [M3/H] 1,7 – 77
Max. rpm 1.000
Connections DIN 15 – 125
Connection types To suit requirements
Viscosity cP 1.000.000
Rotation Bi-Directional, Reversible
Temp. (C) 150°C with high-temperature
rotors. 95°C for FL3 models
Gasket Materials FKM, NBR, EPDM, FPM,
alternative materials
possible
Mounting Horizontal and vertical
Mechanical Seals Single, Single Flushed and Double Mechanical Seals

 

 

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