| 发明名称 |
SHUT-OFF DEVICE FOR PIPE |
| 摘要 |
A shut-off device for a pipe in a pipeline for operation in response to ingress of water, has a valve for installation in a pipe of the pipeline. The valve has a valve member moving between an open position, when the valve is open, to permit passage of fluid through the pipe, and a closed position, when the valve is closed, to shut off a passage extending through the pipe. A buoyant member associated with the valve member moves the valve member to the closed position automatically in the presence of ingress water in the vicinity of the buoyant member. |
| 申请公布号 |
US2014332096(A1) |
申请公布日期 |
2014.11.13 |
| 申请号 |
US201414264097 |
申请日期 |
2014.04.29 |
| 申请人 |
The Hong Kong and China Gas Company Limited |
发明人 |
Lee Wai Keung Carson;Cheung Wai Yeung |
| 分类号 |
F16K31/24 |
主分类号 |
F16K31/24 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A shut-off device for a pipes in a pipeline, the shut-off device comprising:
a valve for installation in the pipe of the pipeline, the valve comprising a valve member supported for movement between an open position when the valve is open, to permits fluid flow through a passage of the pipe, and a closed position when the valve is closed, to shut off flow of the fluid through the passage of the pipe; and a buoyant member associated with the valve member for moving the valve member to the closed position upon detection of ingress of water proximate the buoyant member. |
| 地址 |
Hong Kong SAR CN |
