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KRAL-USA Equipment

Screw pumps with magnetic coupling

Hermetically sealed, maintenance-free screw pumps with contact-free magnetic drive, temperature-resistant up to 300 °C, used as marine fuel pumps.

Description

KRAL screw pumps with magnetic coupling transfer motor rotation to the pump screws without contact via synchronized magnet rotors, with a containment can sealing the pump shaft. This eliminates mechanical seal wear and leakage.

Key features

  • Hermetically sealed: no product leakage and no crystallization of pumped media
  • Heavy fuel oil cannot contact air and form carbon deposits that damage the bearing
  • Temperature-resistant up to 300 °C
  • KRAL states they pay for themselves after about three years through avoided seal replacement
  • Approvals: ABS, BV, CCS, DNV, GL, LRS, MRS, NK, RINA

Applications

  • Marine fuel pumps
  • Compressor and expander lube oil pumps
  • Chemical industry

Specifications

Delivery rate5 to 3,500 l/min
Max. differential pressure100 bar
Temperature range-20 °C to 300 °C
HousingNodular cast iron EN-GJS-400, steel and aluminium
ApprovalsABS, BV, CCS, DNV, GL, LRS, MRS, NK, RINA

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