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.

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F Series KRAL Screw Pumps Overview Screw Pumps for Marine Applications Screw Pumps for PUR Manufacture

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

F flange screw pump.

KRAL F Series screw pump with axial inlet

Flange pump with axial inlet.

F flange screw pump.

KRAL F Series screw pump with radial inlet

Flange pump with radial inlet.

F vertical pedestal pump.

Easy access for maintenance, inspection and servicing. Suitable for small installation spaces.

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Set filters. Start with the product filter. Confirm the search with SHOW RESULTS.
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You can also watch the instruction videos.

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