C (CK / CL / CG)

KRAL C series high-pressure three-screw pumps (CK, CL and CG) for lubricating media: injection, feed, burner, jacking and hydraulic pumps and transformer oil cleaning. Delivery rate 5 to 3,550 l/min (up to 213 m³/h; CK and CL up to 1,750 l/min), pressure up to 100 bar, temperature -20 to 180 °C (300 °C with magnetic coupling), viscosity 1.1 to 10,000 mm²/s (CG up to 1,000,000 mm²/s). Horizontal or vertical, foot, flange, in-tank and pedestal versions; heating electrical, by medium or steam; marine approvals (ABS, BV, CCS, DNV, GL, LRS, MRS, NK, RINA, KR) and ATEX group II category 2.

Key technical parameters

• Flow rate: up to 213 m³/h (3,550 l/min)
• Pressure: up to 100 bar
• Fluid temperature: -20 to 180 °C (300 °C with magnetic coupling)
• Viscosity: 1.1 to 10,000 mm²/s (CG up to 1,000,000 mm²/s)
• Installation: Horizontal or vertical, in-tank
• Casing material: Nodular cast iron, steel or aluminium
• Screw material: Nitrided steel
• Seal: Radial shaft seal, stuffing box, mechanical seal or magnetic coupling
• Approvals: ABS, BV, CCS, DNV, GL, LRS, MRS, NK, RINA, KR; ATEX II 2 GD

Media handled

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

Applications and industries

• Injection, feed and burner pumps
• Hydraulic and jacking pumps
• Transformer oil cleaning
• Marine and power generation