Danish cylinder lubrication systems specialist HJ Lubricators has launched SIP+, a next-generation upgrade of its patented Swirl Injection Principle (SIP) valve for two-stroke marine engines, said to provide a significant benefit for shipowners seeking to cut fuel oil consumption and minimise retrofit downtime.
The redesigned, dual-fuel-ready SIP+ valve eliminates the need for internal liner machining and top-cover removal, said to reduce installation time by more than one-third. This enables retrofits to be completed during normal port stays, cutting downtime and associated costs.
HJ Head of Sales, Mark Kristensen, said: “SIP+ takes a proven technology and makes it easier and faster to install, while achieving the same optimal lubrication at low feed rates. Downtime is one of the biggest hidden costs in fleet operations, and SIP+ makes upgrades both more practical and cost-effective.”
SIP+ retains the advantages of the original SIP design: uniform oil-film distribution, reduced liner wear and lower lube-oil consumption. It is fully compatible with existing lubrication systems and optimised for modern operating conditions, including thin-oil and dual-fuel engines.
Lower lube-oil consumption translates directly into reduced Opex, while less oil burned means lower CO₂ and particle emissions – helping owners meet increasingly strict emission standards. HJ Lubricators estimates a typical payback period of around three years and offers an online calculator for precise savings estimates.
Kristensen added: “With more than 3,500 HJ Lubricators systems already in service, SIP+ is a small design change with a big impact. It gives shipowners a flexible, innovative way to future-proof their engines at a time when energy efficiency is paramount.”
Image: The SIP+ valve’s high-pressure injector injects cylinder oil as a fine mist (source: HJ Lubricators)
