Page 22: of Maritime Reporter Magazine (July 1969)

ASEA POWERMETERS ENGINEERED FOR FUEL SAVINGS through increased machinery operating efficiency The ASEA powermeter used in conjunction with a fuel-rate meter and a Data Logger means potential fuel oil savings... provides efficiency monitoring. The ASEA "TORDUCTOR" Powermeter features: ? NO Rotating parts ? NO slip-rings ? NO strain gages ? Repeatability ± Vz% ? Accuracy of ± 1% Proven in permanent marine installations Send for Bulletin 8193E STAL-LAVAL , 147 East 50th St., N.Y., N.Y. 10017 Si i rzfxJZA Modern Floating Dock, Syncrolift, and Workshops. Ample Quayage and Cranage. FURNESS/SMITHS DOCK (TRINIDAD) LTD. P.O. BOX 893, TRINIDAD W.I. CABLE?FURSMIDOK TELEX No. 278 TEL. TRINIDAD 62-52391 MEMBER OF THE SWAN HUNTER GROUP MMC Develops Automated Liquid Cargo-Handling System The Marine Moisture Control Company, a pioneer in remote controlled marine valve sys-tems, has developed a new concept in auto-mated liquid-cargo handling. The heart of the MMC remote controlled hydraulic valve sys-tem is the MMC butterfly valve assembly. This system uses proven marine quality butterfly valves of heavy pattern, for long life, with complete compatibility with cargoes to be han-dled. A valve assembly consists of a valve, rotary hydraulic actuator and a positive me-chanical locking device in the full open or com-pletely closed positions only. In order to operate valves in a system, con-trol valves are required. MMC offers control valves to meet various conditions. Both manual operated and solenoid operated four-way, three-position control valves are offered de-pending on the degree of automation desired. To actuate the valve system, MMC manu-factures two different types of power supplies: one is an electrically driven variable-displace-ment demand system and the other is a pneu-matically driven unit of smaller output. Both power supplies have hand pumps incorporated for emergency operation. The pneumatically driven unit can be in-stalled in a hazardous area and requires only ships air supply for power. The electric supply gives a variable output depending on the sys-tems hydraulic-flow requirements. MMC valve assemblies employ the fewest moving parts to actuate a valve. Less parts mean more reliability due to simplicity of de-sign. For valves that are remote to the control station, a rotary position indicator is required. MMC will consolidate control stations into console or panels where central control is de-sired. More automation can be obtained by using MMC's sonic overflow alarm system to oper-ate the tank valves on function rather than manually. To complete the system, cargo pump suction and discharge gases with chem protectors and pressure transmitters can be supplied and in-corporated into the control consoles on request. For more information, write Marine Mois-ture Control Company, Inc., 449 Sheridan Boulevard, Inwood, N.Y. 11696. 10 Maritime Reporter/Engineering News