Water leakage checking method for repair valve and water leakage checking jig for repair valve
The method and tool using a hollow pin for smooth water discharge address the issue of water splashing during repair valve checks, ensuring safe and efficient leak detection and measurement.
JP2025175429APending Publication Date: 2025-12-03KURIMOTO LTD
Patent Information
- Application Number
- JP2024081535
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-12-03
AI Technical Summary
Technical Problem
Existing methods for checking the closed state of repair valves in air valves are prone to water splashing when the repair valve cannot be completely closed, posing safety and operational challenges during maintenance.
Method used
A method and tool using a hollow pin to push the float valve element downward, allowing water to pass through and discharge externally, preventing splashing and enabling smooth leak detection, with optional measurement of leakage rates.
Benefits of technology
Enables safe and efficient leak detection in repair valves by containing water discharge, facilitating accurate measurement of leakage rates.
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Smart Images
Figure 2025175429000001_ABST
Abstract
To provide a water leakage checking method for a repair valve and a water leakage checking jig for a repair valve, capable of smoothly checking water leakage in a repair valve.SOLUTION: An air valve 2 has: a valve box 4; a float valve body 5 that is provided in the valve box 4 and moves up and down due to buoyancy of water flowing into the valve box 4; and a floating valve body 7 provided above the float valve body 5, in which air valve hole 6 where the float valve body 5 can seat is formed, and which can move up and down in the valve box 4. A water leakage checking method determines that water leakage occurs in a repair valve 3, when in a state where the repair valve 3 is closed, a hollow pin 22 with both ends open is inserted into the air valve hole 6 and its tip side pushes the float valve body 5 downward, and then water in the valve box 4 passes through the hollow pin 22 and is continuously discharged from its rear end side. A water leakage checking jig 1 has the hollow pin 22 with both ends open.SELECTED DRAWING: Figure 5
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Citation Information
Patent Citations
Repair valve leakage measurement device and method
JP6898202B2