| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cross valve with fire hydrant mouthpiece which attains the simplification and miniaturization of structure and constituting a fire hydrant equipment with an air valve improving stability with respect to the horizontal rocking such as an earthquake. SOLUTION: A cross ball-valve 7 is constituted to allow the inlet 8A to communicate with the outlet 8B of a valve box 8 through a first valve hole 9A at the time of holding a boll-state valve 9 in a first switching posture by the switching operation of a switching operation handle 11 and to allow the inlet 8A to communicate with the auxiliary discharging port 8C of the valve box 8 through a second valve hole 9B at the time of holding the ball-state valve 9 in a second switching posture by the switching operation of the handle 11, and the fire hydrant mouthpiece 6A is fixed to the port 9C of the valve 7. The inlet 8A of the box 8 at the valve 7 is connected to the side of water- works piping 1 and the inlet of an air valve 5 is connected to the outlet 8B of the box 8 to constitute the fire hydrant equipment with the air valve.</p> |
