K (KF / KH / KV / KFT)

KRAL K series universal three-screw pumps for media up to 16 bar, approved for use on board ships. Eight sizes with a delivery rate of 5 to 2,900 l/min (up to 174 m³/h; KFT up to 510 l/min), differential pressure up to 16 bar, temperature -20 to 180 °C (300 °C with magnetic coupling) and viscosity 1.1 to 10,000 mm²/s. Designs KF (flange), KH (foot, base frame), KV (pedestal) and KFT (overhead DIN flanges); heating electrical, by medium or steam; ATEX II 2 GD b/c and marine approvals.

Key technical parameters

• Flow rate: up to 174 m³/h (2,900 l/min)
• Differential pressure: up to 16 bar
• Fluid temperature: -20 to 180 °C (300 °C with magnetic coupling)
• Viscosity: 1.1 to 10,000 mm²/s
• Installation: Horizontal or vertical (KF, KH, KV, KFT)
• Casing material: Nodular cast iron EN-GJS-400
• Screw material: Nitrided steel
• Seal: Rotary lip seal (NBR/FKM), mechanical seal or magnetic coupling
• Approvals: ABS, BV, CCS, DNV, GL, LRS, MRS, NK, RINA; ATEX II 2 GD b/c

Media handled

• Liquids: Fuel oil, Lubricating oil, Diesel, Oil (mineral)
• Media properties: Low viscosity, High viscosity

Applications and industries

• Heavy fuel, lubricating and diesel oils
• Marine
• Power generation
• Oil and gas