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KRAL Three Screw Pumps C Series.

For pressures of up to 100 bar.
  • Screw Pump Series C
    • Delivery Rate: 940 gpm
    • Pressure: 1450 psi
    • Temperature: 360 ºF
  • Screw Pump Series C
    • Delivery Rate: 940 gpm
    • Pressure: 1450 psi
    • Temperature: 360 ºF
  • Screw Pump Series C
    • Delivery Rate: 940 gpm
    • Pressure: 1450 psi
    • Temperature: 360 ºF
  • Screw Pump Series C
    • Delivery Rate: 940 gpm
    • Pressure: 1450 psi
    • Temperature: 360 ºF
  • Screw Pump Series C
    • Delivery Rate: 940 gpm
    • Pressure: 1450 psi
    • Temperature: 360 ºF
KRAL pump selection
To set detailed values click directly on the titel of the slider.
1.5 gpm 940 gpm

Advanced Edition »

gpm - gpm X Confirm »
1 cst 10000 cst

Advanced Edition »

cst - cst X Confirm »
0 psi 1740 psi

Advanced Edition »

psi - psi X Confirm »
-5 ºF 570 ºF

Advanced Edition »

ºF - ºF X Confirm »

The all-rounder – when needs exceed the standard K or L series pumps.
The main components of the C series three screw pumps are the same – the CK, CL and CG pumps differ in the details, delivering the right pump to match more demanding applications. These pumps are primarily used in industry. The CK line is used in hydraulics as a tank pump. The CL line is put to use in the plastics industry as a high pressure feeder pump for polyurethanecomponents like polyols and isocyanates.

CG pumps are utilized in all the same areas of industry as the K and L line whenhigher pressures and delivery rates are required. 


Operation, materials, components.

  • „„Delivery rate CK: 460 gpm.
  • „„Delivery rate CL: 940 gpm.
  • „„Delivery rate CG: 940 gpm.
  • „„Temperature range: -5 °F to 360 °F, magnetic coupling to 570 °F.
  • „„Pressure range: 1,015 psi; 1,450 psi.
  • „„Housing: Nodular cast iron, steel and aluminium.
  • „„Spindles: Steel, nitrided.
  • „„Certifications: ABS, BV, CCS, DNV, GL, LRS, MRS, NK, RINA, KR.
  • „„ATEX: II 2 GD b/c group II, category 2.
  • „„Heating: Electrical, fluid media and steam.
  • „„Manufactured to conform with API.



From the CK through the CL to the CG >>


Three screw pumps CK.

The mega seller of the Series C.
The KRAL three screw pump CK is very compact and least expensive. Its short main screw and construction is achieved by using a shaft seal ring. The CK is often supplied with a suction pipe for vertical in tank installation.

The CK is the best-selling three screw pump line of the C Series. It is mainly used in hydraulic and lube oil applications. Standardized pump / motor brackets made of aluminum are used for the CK pump. This makes the pump simple to install and inexpensive.

Due to its short shaft, the CK series is only available with a radial shaft seal. The CK has internal bearings and is most often used as vertical, submerged in tank pump.

Your advantages:

  • Flow of up to 230 gpm.
  • Viscosity of 10,000 cSt.
  • Pressure up to 1,015 psig.
  • Simple to install.
  • Inexpensive screw pump. 


Three screw pumps CL.

Capable of higher pressures and sufficient space for a wide range of shaft seals.
The KRAL three screw pump CL has a longer main screw. It is therefore capable of higher pressures and has sufficient space for a wide range of shaft seals.

The CL series of three screw pumps has a longer main screw. It is therefore capable of higher pressures and has sufficient space for a wide range of shaft seals. Thanks to the longer screw set, it can be equipped with different shaft sealing options. External bearings are also possible. This pump line is used as horizontal or vertical foot or flange mounted pump as well as in tank-vertical arrangements.

The CL pump is the cartridge (insert) pump used in the KRAL three screw pumps CG series.

Your advantages:

  • Flow Rates up to 230 gpm.
  • Viscosity of 10,000 cSt.
  • Pressure up to 1,015 psig.
  • Capable of higher pressures.
  • A wide range of shaft seals.
  • Different shaft sealing options.
  • External bearings are possible.


Three screw pumps CG.

Individual customization.
The KRAL  three screw pump CG is a cartridge pump (insert pump) design with a variety of options for safety or bypass valves. The outer casing is either cast iron or fabricated steel. The steel cased version allows for almost any location, size and type of liquid Connection.

With the CG three screw pumps series KRAL offers a variety of housings, relief valves and connections. The housing is available in cast iron or steel. Versions with heating jacket for high-viscosity liquids are available. The steel cased version allows for almost any location, size and type of liquid connection. The CG is a cartridge pump (insert pump) design.

For the CG the KRAL three screw pump CL is used as the cartridge (insert) pump.

The various housing options allow enormous flexibility with regards to the liquid connections. An external overflow valve can be optionally attached to the CG pumps.

Your advantages:

  • Flow Rates up to 940 gpm.
  • Viscosity of 1,000 000 cSt.
  • Pressure up to 1,450 psig.
  • A variety of housings, relief valves and connections.
  • Housing in cast iron or steel available.
  • Heating jacket for high-viscosity liquids.
  • For almost any location, size and type of liquid connection.
  • External overflow valve can be optionally attached.
Read more

Transfer of separated crude oil.

Increasing pressure and circulation in lubrication systems.

Tank system support.

Compressor lubrication.

Increasing pressure and circulation in lubrication systems.

Tank system support.

Providing service for hydraulic drives.

Burner pump for boilers.

Increasing pressure and circulation in lubrication systems.

Tank system support.

Industrial burners.

„„„„Burner technology for ring lines and transfer pumping.

Supplying lubrication oil for large diesel engines.

Increasing pressure in hydraulic turbine controllers.

Compressed oil shaft seals for hydrogen cooled generators.

Raising turbine bearings.

Increasing pressure and circulation in lubrication systems.

Lubrication pumping for gears, motors, turbines and hydraulic systems.

Bench testing.

Burner and transfer pumping.

Lubrication oil applications.

Industrial burners.

Increasing pressure and circulation in lubrication systems.

Tank system support.

Plastics processing, in particular polyurethane applications.

Drainage pumping in tank systems for adhesives, wax, resins and fuel, PUR or coloring agents.

Apportioning of fluids.

Drum discharge pump.

Filling and draining of tanks.

KRAL Screw Pumps

  

Screw Pumps KRAL Series C

  

 

KRAL Operating Instructions.

Three Screw Pumps CK Series.

KRAL Operating Instructions.

Three Screw Pumps CG Series.

 

KRAL - USA, Inc. | P.O. Box 2990 | Matthews NC 28106 | 901A Matthews-Mint Hill Road | Matthews NC 28105 | USA