Purpose and Structure : Outdoor fire hydrant installations can be divided according to the ground and two underground formula (1 ) is a ground -style outdoor fire hydrant outdoor fire water supply facilities on the ground of its upper part above the ground, clearly marked and easy to use by the body, the elbow. .. , valve seats, valve, drain valve, the valve stem and fire interfaces. ( 2 ) underground is an outdoor fire hydrant outdoor water facilities. installed underground, does not affect the city and traffic by fire interface, stem, body, flanged pipe, drain valve, valve, valve seats, valve, pipe and other component parts .
Type : outdoor fire hydrant installations can be divided according to their ground and underground type two; its inlet connection flange socket can be divided into two kinds