KRAL Screw Pumps for Bitumen Applications.

Bitumen.

Bitumen is primarily obtained as a vacuum residue in the vacuum distillation of petroleum. Here only special varieties of crude oil can be used – almost exclusively varieties of crude that are high in sulfur. Bitumen mainly consists of high molecular weight hydrocarbon and contains small quantities of sulfur, oxygen and nitrogen. The medium is highly viscous and reaches a fluid consistency only under high temperatures.

KRAL screw pumps for bitumen.

KRAL screw pumps have the capacity to operate within a wide range pressures and product viscosities. These are excellent features when it comes to pumps used in the loading and unloading of bitumen. KRAL pumps have a linear delivery rate characteristic with fine adjustment. This allows you to reduce maintenance costs and optimize the total cost of ownership (TCO).

Also with magnetic coupling for bitumen applications.

For bitumen production, KRAL offers solutions with conventional seals, and pumps with magnetic couplings are also available to provide solutions for specific
customer requirements.

Advantages of KRAL screw pumps.

Meet API standards
For high viscosity
Heating of casing
Low TCO
Easy maintenance
Temperatures up to 300 °C
Quiet, no vibration and low pulsation
Great suction lift
High efficiency and durability.

Product recommendations.

K series.

Delivery rate: 5 to 2,900 l/min.
Max. differential pressure: 16 bar.
Temperature range: -20 °C to 180 °C, magnetic coupling to 300 °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.

screw pump series C in horizontal installation

C series.

Delivery rate: CK: 5 to 1,750 l/min / CL & CG: 5 to 3,550 l/min.
Temperature range: -20 °C to 180 °C, magnetic coupling to 300 °C.
Pressure range: 70 bar; 100 bar.
Housing: Nodular cast iron, steel and aluminium.
Screws: Steel, nitrided.
Approvals: ABS, BV, CCS, DNV, GL, LRS, MRS, NK, RINA, KR.
ATEX: II 2 GD b/c group II,
category 2.
Heating: Electrical, media or steam.
API: Manufactured to conform
with API.

all connections are possible horizontally (inline) and in different angles

Z series.

Delivery rate: 330 to 17,660 l/min or 20 to 1,060 m³/h.
Max. differential pressure: 25 bar.
Temperature range: -40 °C to +300 °C.
Housing: Ductile iron or welded steel.
Screws: Solid or engineered.
Approvals: ABS, BV, DNV/GL, LRS, RINA, others on request.
ATEX: II 2 GD b/c group II, category 2.
Heating: Electrical, media or steam.
API: Manufacturing according to API 676 possible.

Screw pumps with
magnetic coupling.

Delivery rate: 5 to 3,500 l/min.
Max. differential pressure: 100 bar.
Temperature range: -20 °C to 300 °C.
Housing: Nodular cast iron EN-GJS-400, steel and aluminium.
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.