FIELD: fire extinguishing means.
SUBSTANCE: joint ball is made hollow and inlet of water flow into ball from the socket side is made in form of oval hole, elongated towards ball semi-axes. Outlet of water flow from ball is made in form of round hole, area of water flow section at ball inlet is not smaller than section area at its outlet.
EFFECT: fire monitor with ball joint has wider angle of movement in vertical plane, as well as lighter construction.
2 dwg
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