Circor Products
IMO – 3 Screw
Three screw pumps are the largest class of multiple screw pumps in service today. They are commonly used for:
- machinery lubrication
- hydraulic elevators
- fuel oil transport and burner service
- powering hydraulic machinery
They are also used in refinery processes for high-temperature viscous products such as asphalt, vacuum tower bottoms, and residual fuel oils.
Three screw pumps also find extensive use in crude oil pipeline service as well as gathering, boosting and loading of barges and ships. They are common in engine rooms on most of the world’s commercial marine vessels and many combat ships.
Flow rates are available from 1 to 3300 GPM (4 to 13,250 L/M) or for operating pressures to 4500 PSIG (310 BAR).
Allweiler – 3 Screw
The Two and Three Screw pumps are used to pump oils or other lubricating liquids, non-lubricating liquids, or liquids with poor lubricating properties. The characteristics of the screw pumps are:
- Self-priming, very high efficiency.
- Very low noise level and very well suited for use with variable speed drives (FU).
- The liquid is moved fully continuously, virtually without pulsations, without turbulence, crushing, or loss of lubrication.
IMO – AB
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 sulfur (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 sulfur MGO, OptiLine pumps just keep performing.