. Railway mechanical engineer . of therepaired valves. Some of these devices do not differ in prin-ciple from similar facilities in use in other shops and someof them are unique. All, however, are simple and effective. Cleaning Triple Valves in Soda Solution Triple valves are now being cleaned in a caustic sodasolution This is a complete departure from the almost uni-versal practice of cleaning with kerosene. The equipmentfor cleaning by this method which is shown complete in oneof the illustrations, consists of three tanks placed in a row,with a scrubbing shelf at one end and a horizontal ste
. Railway mechanical engineer . of therepaired valves. Some of these devices do not differ in prin-ciple from similar facilities in use in other shops and someof them are unique. All, however, are simple and effective. Cleaning Triple Valves in Soda Solution Triple valves are now being cleaned in a caustic sodasolution This is a complete departure from the almost uni-versal practice of cleaning with kerosene. The equipmentfor cleaning by this method which is shown complete in oneof the illustrations, consists of three tanks placed in a row,with a scrubbing shelf at one end and a horizontal steamdrying coil at the other end. The tank in the foreground of the illustration contains a. Fig. 1—Vats and Drying Coil for Cleaning Triple Valves withCaustic Soda caustic soda solution made in the proportion of two poundsof soda to five gallons of water. This solution is maintainedat a temperature of about 130 deg. F. by a steam coil laidin the bottom of the tank. Next to the soda tank is anothersteam heated tank containing clean water. The third tankis filled with cold running water to insure a continuouschange of water. After a triple valve has been completely taken apart, theparts are placed in a shallow wire basket and immersed inthe soda solution for about 20 minutes. The valve body,cap and emergency section are hung on the ends of Shooks by the flange bolt holes and are immersed in the sodasolution, the upper end of the hook being dropped over theedge of the tank. From the soda solution the parts are takento the cold water tank where they are thoroughly removes all free soda solution and makes the parts safeto handle. They are then scrubbed off, using a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
