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Marinite XL is Better... The Problem Ingredient is Gone! Yes, the ingredient that some Industry's fabricators objected to has been Insulation Experts eliminated. For all applications requiring a fireproof marine joiner panel, use Marinite XL. It is better than ever, and meets U.S.C.G. regulations. IZ\ Johns-Manville SERVICE AND REPAIR IS OUR BUSINESS MARINE REPAIR, MAINTENANCE AND CONVERSION SINCE 1908 UNION DRY DOCK & REPAIR COMPANY Foot of Pershing Road, Weehawken, N.J. 07087 (201) 867-0904 Largest Vertical Submerged Screw Pumps Successfully Tested At Delaval Turbine Performance tests were recently completed at Delaval Turbine Inc., on the largest ver- tically submerged screw pump systems ever built. Designed by engineers at the IMO Pump Division of Delaval and built at De- laval's Trenton, N.J., plant, the three units are each over 40 feet (12.2 meters) in length and are to be shipped to a Gulf Coast loca- tion for installation on an ocean barge for unloading and stripping service. Fifty-foot Delaval GTS vertical pump system on the manufacturing floor at IMO Pump Division. Each of the pumping systems comprises a right-angle drive, ratio 1.2:1, mounting bracket and discharge flange, discharge pipe, stainless steel three-piece drive shaft and GTS™ geared twin-screw pump with inde- pendent seal balance and lube systems. The pump is driven by a 1,000-hp diesel engine through a 4:1 control fluid coupling to supply a capacity of 5,500 U.S. gallons per minute (approximately 7,860 barrels per hour) (1,250 cubic meters/hour). The pump is rated for speeds up to 1,000 rpm, and a maximum dis- charge pressure of 165 pounds per square inch (1,100 kPa) for liquids ranging from seawater up to crude at 8,000 SSU (190 est). The unloading systems feature the use of external timing gears and bearings which are isolated from all pumpage. A unique pres- sure balancing and lubricating system serves to lubricate and cools the external gears and bearings, as well as to control differential pressure across the mechanical seals. The working fluid therefore cannot contaminate the lube oil. Delaval Turbine Inc., a Transamerica Company, has 15 operating divisions at 18 manufacturing locations worldwide. The com- pany makes a line of industrial products, in- cluding compressors, condensers, connectors, controls, diesel engines, fasteners, filters, forgings, gearing, pumps, sensors, turbines and valves. Quick Release Mooring Hooks Brochure Available Alexander Marine Associates Inc. have announced that they have been appointed exclusive sales representatives for the East Coast of the U.S.A. by Kimman B.V. Kim- man design and manufacture quick release mooring hooks presently up to 200 tons capacity. For a copy of the quick release mooring hooks brochure, write to Alexander Marine Associates Inc., P.O. Box 1048, Port Wash- ington, N.Y. 11050. 52 Maritime Reporter/Engineering News
