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A SECRET OF TURNOVER Coen Duplex Strainers can be furnished in sizes from 34"’ to 6” inclusive for either suction or discharge Duplex Strainers Duplex Strainers embrace the features essential for the most rapid and satisfactory operation. A 90- degree turn of the handles changes the flow from one basket to the other without use of valves. The basket being in two parts is more readily cleaned. Strainer is so designed that when the well cover is removed the level of fluid at the well is lowered, exposing the top of the basket for removal. It is impossible to stop the flow regardless of the posi- tion of the handle. This type of Duplex Strainer eliminates the many joints necessary in those strainers which are made up of valves and fittings. RS S ken SS eae An RTT IM, \ il Six inch strainers are ordinarily made of close grain cast iron or bronze. Well covers are fitted with of bronze fuel tongue and grooved joints and are held tightly in ae position by means of heavy steel strong backs and hinged steel studs. The baskets are of perforated metal or reinforced wire mesh, or are made to order for special requirements, one double basket COEN COM PANY, INC. Cutaway view offering the combined area of perforations ten times COMBUSTION ENGINEERS the inside cross sectional area of the pipe. The entire strainer assembly emphasizes compactness, Executive €-3/ Offices ease of operation and instantaneous access to 428 Story Bldg., Los Angeles working parts. 112 Market St. Post Dispatch Bldg 50 Church St. San Francisco Houston | New York MARINE REViIeEw—January, 1931 3