春天检查和喷水灭火设备。
As there seems to be some difficulty as to the spring inspection of automatic sprinkler equipment, the New York Fire Insurance Exchange has taken the matter up. Up to the present a dry-pipe equipment had to be kept dry for about four months in the year, becoming wet again as soon as freezing weather was over. This practice, however, was found to increase the chances of interruption to automatic service due to freezing of improperly
drained pipes and fittings, improper adjustment of dry valve, and the increased amount of sediment brought into the pipe system with each new charge of water. It is, therefore, recommended that a dry-pipe sprinkler equipment controled by an approved dry-pipe valve should lie maintained dry-pipe throughout the year. A wet-pipe system in which water has been turned off from limited portions to prevent freezing should have the pipes and sprinklers examined to make sure that there are no low points or traps where the water lias accumulated, frozen or burst the pipes. The water should then be turned on to the portion or portions that have been turned off and the controling valves properly secured open. The gravity-tanks supplying the system, should also have their hoops, covers and foundations very carefully examined, and wherever such tanks have the ordinary flat band, these bands should be replaced with new, round, wrought iron hoops at least j4-in. in diameter, or reinforced with such round hoops. Particular attention should also be given to maintaining the outside steamer-connection of the equipment in proper order, with caps on and free from rust, ready for the use of the lire department iii ease of need. Particular attention should also be given to fire-pumps by making actual tests of same through the requisite number of streams (one for every 250 gal. per minute capacity of pump) for several minutes at full speed. All post-indicator valves should likewise he examined and all private hydrants examined and flushed.
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