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ii speed reducers Website: FLENDER GRAFFENSTADEN pcmii speed reducers Circle 2 on Reader Service Card Smart Pneumatic Level Sensor with Generic 4-2mA Output The Bubbler is an electro-pneumatic level trans- mitter that allows remote level measurement using 4-2mA analog output. The lack of air pressure poses no operational problems, due to an auto- matic one-way valve which closes as soon as the pressure drops below 1 bar, this prevents back flow in the bubbling line towards the transmitter. Over pressure is also protected against by an automatic one-way valve. It' the size of grapefruit Explosion proof housing Accuracy .3% full scale Automatic over-pressure valve Automatic stop valve for air failure Automatic cleaning of bubbling line Connection for pressurized tanks 2 pair 2 VDC and 4-2mA cable Top or side mount Many Options Call today JF for more jxj information! ELECTRONIC MARINE SYSTEMS, INC. 8 Ferndale Place Rahway, NJ 0 7.3.4 7.3.5 fax emsmarcon FLENDER GRAFFENSTADEN aol speed reducers -mail http:// FLENDER GRAFFENSTADEN emsmarcon speed reducers Circle 2 on Reader Service Card September 2 3 Germany SMM Preview Becker Kort Rudder Nozzles for Improved Maneuverability Becker Kort nozzles are designed to give increased propulsive efficiency from the propeller that is surrounded by the nozzle. This results from the water being directed towards the propeller in more uniform stream. Compared with what hap- pens with free propeller, the static pull can be up to 4 percent greater, with the result that smaller main engine can be used. Furthermore, the nozzle structure of the Kort system protects the propeller from damage. In order to improve the steerage capability of the vessels, Becker Marine Systems has equipped its Kort nozzles with movable flap at the nozzle out- let. Because of the movable Becker flap at the end of rudder nozzle, the transver