An earthquake actuated automatic gas shutoff valve having a valve bottom portion with a generally horizontal floor having a ball seat and a valve seat surrounding a gas outlet passageway. A ball having an elastomeric outer surface is held in the ball seat and in the event of an earthquake, ...
US2158753 * 1937年4月7日 1939年5月16日 Hansen Sidney H Earthquake actuated shut-off valveUS2158753 * Apr 7, 1937 May 16, 1939 Hansen Sidney H Earthquake actuated shut-off valveUS2158753 1937年4月7日 1939年5月16日 Hansen Sidney H Earthquake actuated shut-off valve...
Earthquake relief valve A shock actuated shut-off valve is described, comprising: a valve, having an open position and a closed position, rotatably mounted within a valve body; a ... HE Diamond 被引量: 17发表: 1989年 一种自动地震煤气关闭阀门的设计 Design of an automatic shutoff gas valve...
Earthquake relief valve A shock actuated shut-off valve is described, comprising: a valve, having an open position and a closed position, rotatably mounted within a valve body; a ... HE Diamond 被引量: 17发表: 1989年 Earthquake-responsive valve motor A shock actuated shut-off valve is des...
A safety cut-off valve for gasses or fluids delivered to buildings which are severely damaged in earthquakes. The valve consists of a non-magnetic housing enclosing a magnetic valve piece which conjug
Seismic Safety Products manufactures and sales the Northridge earthquake actuated natural gas and propane shutoff valve that prevents fires and explosions caused by leaking gas after an earthquake
还没人写过短评呢 我要写书评 Earthquake-actuated Automatic Gas Shutoff Devices的书评 ··· ( 全部0 条 ) 论坛 ··· 在这本书的论坛里发言 + 加入购书单 谁读这本书? ··· 二手市场 ··· 在豆瓣转让 手里有一本闲着? 订阅关于Earthquake-actuated Automatic Gas Shutoff Devices的...
The aim of the earthquake-resistant design of nuclear power plants is to retain three crucial functions, even in the event of a major earthquake and tsunami: to shut down the reactor (shut down), to cool down the reactor under a specified temperature and maintain a stable condition (cool do...
Earthquake relief valve A shock actuated shut-off valve is described, comprising: a valve, having an open position and a closed position, rotatably mounted within a valve body; a ... HE Diamond 被引量: 17发表: 1989年 Earthquake triggered gas valve A gas valve automatically closed from a ...
Shutoff Systems, Earthquake Actuated Automatic Gas,