Differential pressure monitoring Differential pressure monitoring An optical display or an electrical differential monitor with signal can be used.

Pump variations Pump variations Single stations can be set up with KRAL pumps for pressures up to 40 bar.

Heating Heating For preheating highly viscous fluids.

Constant pressure monitoring Constant pressure monitoring A manometer is fitted to the middle of the station to allow for monitoring of the feed pressure.

KRAL Oil Burner Pump Stations EK / EL.

Oil burner pump as complete station with additional functions.

These positive displacement pump stations combine all the advantages of the KRAL screw pumps K and L with additional functions for smooth and user-friendly operation. KRAL screw pumps convey highly efficient lubricating fluids, are low-wear, very compact and space-saving.

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Operation, materials, components.

Delivery rate: 5 to 280 l/min.
Max. differential pressure: 40 bar.
Temperature range: -20 °C to 180 °C.
Housing: Nodular cast iron EN-GJS-400.
Screws: Steel, nitrided.
Approvals: ABS, BV, CCS, DNV, GL, LRS, MRS, NK, RINA.
ATEX: II 2 GD b/c group II, category 2.
Heating: Electrical, media or steam.
For viscous fluids up to 7,000 mm²/s.

The functions of the oil burner supply station of KRAL with K or L series screw pumps can be expanded individually, for example with:

Pressure regulation
Degassing
Flow metering
Filter
Gas / air separator.

The mounted display instruments can swivel. Left- or right-handed installation can be set up individually at the site.

KRAL offers the optimal solution for every customer requirement. Just ask us, we have probably solved a similar problem already!

Your advantages.

Function individually expandable.
Display instruments can swivel.
Left- or right-handed installation.
Equipped with KRAL screw pumps up to 40 bar.
Low-wear and compact.
Optimal solution for every customer requirement.
For burner applications.

Technical data.

EK series.

Technical data		5-10	15-26	32-55
Qth (1450 min^-1, 0 bar)	l/min	5-10	15-26	32-58

Max. pressure at pressure flange	bar	6	6	6

Temperature max. pumped liquid	°C
with radial shaft seal NBR		80	80	80
with radial shaft seal FKM		150	150	150
with mechanical seal standard		150	150	150
with mechanical seal hard material		180	180	180

Viscosity	mm²/s
min.		1.1	1.1	1.1
max.		7,000	7,000	7,000

Max. pressure at suction flange	bar
with radial sealing ring		6	6	6
with mechanical seal standard		6	6	6
with mechanical seal hard material		6	6	6

EL series.

Technical data		5-10	15-26	32-54
Qth (1450 min^-1, 0 bar)	l/min	5-10	15-26	32-57

Max. pressure at pressure flange	bar	40	40	40

Temperature max. pumped liquid	°C
with radial shaft seal NBR		80	80	80
with radial shaft seal FKM		150	150	150
with mechanical seal standard		150	150	150
with mechanical seal hard material		180	180	180

Viscosity	mm²/s
min.		1.1	1.1	1.1
max.		7,000	7,000	7,000

Max. pressure at suction flange	bar
with radial sealing ring		6	6	6
with mechanical seal standard		6	6	6
with mechanical seal hard material		6	6	6