Common use of Filtration Clause in Contracts

Filtration. A duplex 100% capacity oil filter is provided in the lubricating oil supply line to prevent particle contaminates from circulating through the system. Under normal operation, oil flows through one of the duplex filter cartridges while the remaining filter cartridge is on standby duty. Oil flow can be manually diverted via a six way valve arranged to transfer oil to the standby filter during routine maintenance without interrupting the oil flow to the unit. OIL COOLER The oil cooler assembly is capable of maintaining an acceptable temperature range of oil to the bearings, 110 degrees to 120 degrees F (43 to 49 degrees C), while the system is in operation using BOP cooling water. -------------------------------------------------------------------------------- Proprietary Information Page 6 AES IRONWOOD CONTRACT FINAL ISSUE - OCTOBER 30, 1998 -------------------------------------------------------------------------------- The cooler is a plate type heat exchanger made up of a stack of cold pressed type 316 stainless steel plates secured between two covers by bolts. Each plate is fitted with a gasket that routes the lubricating oil and cooling water through alternate channels in a series of parallel groups. A double seal between the two flow channels, provided by the gasket, keeps the oil and water from mixing. The cooler can be disassembled without disconnecting piping. A dial thermometer indicates the outlet temperature of the oil. OIL PIPING The skid mounted oil piping for the lube oil system and the interconnecting piping from the skid to the turbine-generator is included. Pipes and connections shall be shielded in areas where oil leaks could contact hot turbine or steam pipe surfaces. GLAND STEAM SYSTEM AND VALVE STEM LEAKOFF SYSTEM A gland steam seal system is designed to: o Prevent air leakage into the exhaust end of the low pressure turbine during normal operation.