Over 90 years at the forefront of the pump industry
Over 90 years at the forefront of the pump industry
Imo AB‚ a CIRCOR business unit manufactures three spindle screw pumps suitable for pumping all non-corrosive fluids with lubricating properties.
The pumps meet most pumping needs in the marine‚ defense‚ pulp & paper‚ tooling machinery‚ power generation and offshore industries.
Imo AB was founded in 1931 by the inventor of the three spindle pump‚ Mr. Carl Montelius‚ and the Swedish entrepreneur‚ Mr. Bengt Ingestrom.
Manufacturing is accomplished under ISO 9001 Quality Management Systems.
DESIGNED TO PERFORM
Featured Products
IMO AB

IMO AB ACD6 Series Three-Screw Pump
IMO AB

IMO AB ACE4 OptiLine Series Three-Screw Pump
IMO AB

IMO AB ACG8 OptiLine Series Three-Screw Pump
Industries Served
CIRCOR delivers customer-focused solutions in strategic global markets‚ where tough challenges‚ harsh environments and high-stakes situations demand precision performance and reliability. To deliver where failure is not an option‚ CIRCOR | IMO brings customers a portfolio of pumping products and systems and deep experience and expertise in critical applications.

AFTERMARKET & SERVICE
Your best resource for service, maintenance and quality parts.
No one knows your valves, pumps and systems like the experts at CIRCOR. Our certified OEM parts are engineered to meet or exceed original equipment standards and our service and support teams are equipped with some of the best knowledge in the industry. We have the resources to troubleshoot, analyze and solve even your most complex issues in ways other service options are unable to.
News
Explore Our Success Stories

Magnetic Coupled Pumps
Magnetic coupled. Sealless. Leak-free pumps.
Optimal MGO and heavy fuel oil applications in the marine industry.
IMO OptiLine magnetic coupled pumps, also called magnetic drive or mag drive pumps, bring considerable savings in maintenance and spare parts.
What's more, OptiLine pumps already meet requirements for low viscosity (down to 1,4 cSt) according to ISO 8217:2005 and low sulphur (0,1%) as stated in EU/SECA 2005-33-EC. All while maintaining the same high efficiency.
Magnetic coupled pumps are well proven with installations onboard vessels worldwide since 2003. Even when pumping HFO or low sulphur MGO, OptiLine pumps just keep performing.
CASE #1
THE CLIENT: STOLT-NIELSEN
THE VESSEL: STOLT EFFICIENCY
THE STORY: IMO OPTILINE WAS INSTALLED IN AN F.O. BOOSTER APPLICATION IN 2004.
THE RESULT: "The pump has performed admirably, without any problems, 22,500 hours after installation," says chief engineer, David Hopkins. "The IMO OptiLine magnetic coupled technology has substantially increased the reliability and decreased cost and time for maintenance and replacement of shaft seals. At Stolt-Nielsen we are committed to operational excellence. This means that we continuously strive for increased performance at all levels, from human capital to equipment, including pumps."

CASE STUDY
Magnetic Coupled Pumps
CASE #2
THE CLIENT: STENA LINE
THE VESSEL: STENA DANICA
THE STORY: DURING SPRING 2008 IMO OPTILINE PUMPS WERE INSTALLED ABOARD THE PASSENGER VESSEL, STENA DANICA.
THE RESULT: 1st Engineer, Johan Sjölander, states," The constantly leaking pump and negative inspection reports forced us into looking for an alternative supplier. IMO pumps have a good reputation and solid track record in the marine industry. Therefore, we looked at both IMO’s standard pumps as well as the magnetic coupled alternatives." Chief Engineer Hans Corneliusson: " The leak-free operation with IMO OptiLine was something that we really wanted to evaluate. So far the IMO OptiLine pumps have delivered the promise of truly leak-free operation." Stena Line AB actively works with HSE (Health, Safety and Environment) issues. Furthermore they are certified to the environmental standard ISO 14001.
PUMP RECYCLING
Sustainable and environmentally friendly pump return
Our service in Germany and UK does not stop after the pump has reached the end of its operating life. Since pumps count as electronic waste, they must be handed in at certified collection points according to law. We support you in this process. You can return the old pumps we produced to us free of charge and we will take care of the recycling process.
Read more about the most important requirements for handling electrical and electronic equipment:
Contact IMO AB
GENERAL
Phone: +46 8 506 22 800
Fax: +49 (0)7732 86-929
Email: Sales.IMOAB@circor.com
SALES
Email: Sales.IMOAB@circor.com
ALLWEILER GmbH
Allweiler Straße 1
78315 Radolfzell
Germany