| 摘要 |
An inner water pressure valve is provided to be mainly made of synthetic resin so as to reduce manufacturing cost and be applied to a chemical pipe. An inner water pressure valve includes a valve main body(1-1) composed of a valve body(1-2), a rubber(1-3), and a valve connecting unit(1-4). Air-tightness in the valve main body is maintained by bonding or applying heat to the valve connecting unit. The rubber interrupts a flow of fluid. A check valve unit is installed on the bottom of a buoyancy unit to fill water in a ball. When the water is filled in a water tank, the check valve unit is opened by the weight of the ball so that the water is filled in the ball. A screw unit is installed in the valve main body to be connected to a pipe so that the water is prevented from flowing laterally when discharged from the pipe.
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