For ATEX zones. For ATEX zones. Containment can with temperature sensor for use in potentially explosive gas atmospheres (ATEX zones 1 and 2).
Reliable sealing. Reliable sealing. Adequate elastomer selection for reliable sealing of critical points.
Standard magnetic coupling. Standard magnetic coupling. Hermetically sealed thanks to magnetic coupling.
Almost maintenance-free. Almost maintenance-free. Selected materials, special coatings and axial-load compensation ensure virtually maintenance-free operation over many years, even when handling media with low lubricity.
Corrosion-resistant screws. Corrosion-resistant screws. The stainless-steel screws feature high surface hardness and special coatings for optimized sliding behaviour and excellent emergency-running properties.
Balanced idle screws. Balanced idle screws. Hydraulically balanced idle screws for minimum axial forces and low-noise operation.
Corrosion-resistant materials. Corrosion-resistant materials. The housing and all media-wetted parts are made of stainless steel as standard.
Coated housing options. Coated housing options. A range of coatings for outstanding sliding properties and minimal friction.
Axial and radial. Axial and radial. A wide range of connection options enables compact system integration.

KRAL F Series Screw Pumps.

The screw pump for Future Fuels.

When future meets experience.
In the ever-changing world of energy technologies, future fuels play a key role. They do not only promise a more sustainable alternative to conventional fossil fuels, but also drive innovation and efficiency in various industrial applications. The KRAL Future Fuels pump offers high efficiency for various Future Fuels and a wide range of applications thanks to the use of corrosion-resistant stainless steels.

 

Operation, materials, components.

  • Delivery rate: 5 to 280 l/min.
  • Viscosity: 0.2 to 500 mm2/s.
  • Rotation speed: up to 4,000 min-1.
  • Max. differential pressure: 120 bar.
  • Max. temperature: -40 to +300 °C (up to +80 °C for coated housings).
  • ATEX: Zone 1 & 2.
  • Future Fuels: Biofuels, Methanol, Ammonia, Ethanol, HVO, FAME.

KRAL F series at a glance.

All media wetted parts made of stainless steel.
Hermetic sealing with magnetic coupling.
Approved for use in in ATEX Zone 1 & 2.
Differential pressures up to 80 bar (LFO, biofuels) / max. 30 bar for methanol and ammonia.
Excellent efficiency degree.
Low pulsation and low shear conveying.
Almost linear conveying characteristics.
Very low noise emissions.
Suitable for fuels with acid value > 0.5 mg KOH/g.

 

Technical data 15-20 32-42 55-74-85 105-118
Delivery rate
(2,900 min-1, 40 bar, 1 mm2/s)		 l/min up to 25 up to 60 up to 120 up to 180
Max. differential pressure  bar 120 120 120 120
Max. temperature °C 80 80 80 80
Viscosity mm²/s >0,2 >0,2 >0,2 >0,2
Max. rotation speed min-1 4,000 4,000 4,000 4,000
Max. supply pressure bar 16 16 16 16
Back Serial Pumps 3D download package inclusive