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www.marinelink.com 37New Alfa Laval T35 Heat ExchangerAlfa Laval announced the addition of the new T35 gasketed plate heat exchanger to its broad portfolio of marine prod-ucts and solutions. With patented fea- tures, the T35/TS35 introduces changes to today?s marine coolers and cooling systems to deliver thermal efÞ ciency, greater temperature ß exibility, mini- mized fouling and reduced usage of raw material, the manufacturer said, adding, innovations to the frame, plate and gas-ket designs promise to raise heat transfer efÞ ciency, lower investment and operat- ing costs and reduce maintenance costs. Alfa Laval said the new T35 delivers the biggest transformation to gasketed plate heat exchangers since it introduced the concept of central cooling systems with these heat exchangers to the marine and offshore industries some 30 years ago. In addition to central cooling, the Alfa Laval T35 may also be used for lube oil cooling and for cooling in scrubber gas applications. Changes include:? Improved plate design with patented Alfa Laval CurveFlow plate pattern, new porthole design and innova-tive distribution zone that ensures highly uniform distribution of the media across the entire surface. This signi Þ cantly im- proves heat transfer efÞ ciency. ? Patented Alfa Laval ClipGrip gasket system optimized for high and low pressures and for quick mounting and secure positioning. The new design extends gasket lifetime and signiÞ cantly lowers maintenance and replacement costs compared to gasketed plate heat exchangers that require glued gaskets.? Enhanced lightweight frame design with optimized frame thickness, two frame heights, updated marine class approval, and new roller assembly and special foot attachment to make opening and closing easier. These enhancements contribute to ease of maintenance.www.alfalaval.com/ solution-Þ nder/products/t35 New Range of LED Lights from Britmar Britmar Marine in North Vancouver, Canada has developed a new range of LED light Þ xtures for the commercial marine industry. Its key component is an extremely efÞ cient 130lm/W LED board, that does not require any addi-tional thermal management, thus can operate even in tightly enclosed enclo-sures. There is a selection of few models of luminaries available featuring these boards, which can be connected directly to 12 or 24V DC, to universal AC input via driver or to any combination of these three in one. Three hour battery backup option is currently in development, as well as an option of using these boards as an easy-to-install retroÞ t kit for light Þ xtures currently in use on vessels. www.britmar.com New Mechanical Shaft SealThordon Bearings introduced TG100, a new water lubricated mechanical face seal for 100 - 305 mm (4?-12?) shaft diameters speciÞ cally designed for op- eration in abrasive waters, but able to operate in clean water too. The TG100 uses Silicon Carbide seal faces designed to last the life of the vessel and operate with ease in both clean and abrasive-lad-en waters. If the face seals should ever experience damage, a unique feature of the TG100 is its proprietary emergency seal that allows the shaft to continue to turn at low rpm for a limited time allow-ing the vessel to safely return to port. The elastomeric bellows on the TG100 is molded in a unique omega shape from a Thordon proprietary high temperature elastomer thathas an unlimited shelf life, according to the manufacturer. The de- sign of the bellows achieves the elastic spring force ensuring zero leakage.www.thordonbearings.com With the new Horizon MF the German navigation system manufacturer Raythe-on Anschütz launches a new generation gyro compass which can be operated free of maintenance. Horizon MF is Raytheon Anschütz? new strap down compass system which uses Hemispherical Resonator Gyros (HRG) to measure angular rates for heading cal-culation. In a strapped-down system an-gular rate gyros and accelerometers are not gimballed but mounted stationary in a housing. The sensor measures angular rates and accelerations in three axes. Based on these measurements sophisticated soft-ware algorithms compute heading but also roll and pitch. Horizon MF comes as a maintenance-free (MF) sensor with an outstanding lifetime performance. Its Mean Time Between Failure (MTBF) value is more than 100,000 hours which is a multiple of the MTBF values of opti-cal but also classical mechanical gyros bringing forth an outstanding long life-time and long-term stability gyro com-pass for seagoing vessels.As part of a gyro compass system Ho-rizon MF provides the same advanced functions like heading selection, head-ing monitoring, automatic switch-over functions, an independent transmitting magnetic compass and individual speed error correction which are well known for Anschütz gyro compasses. Of course, Horizon MF seamlessly in-tegrates with the Anschütz Standard 22 gyro compass.Maintenance-free Gyro Compass MR #7 (34-42).indd 37MR #7 (34-42).indd 377/1/2013 9:35:13 AM7/1/2013 9:35:13 AM
