ENSTAR is required by federal regulation to install an Excess Flow Valve (EFV) or a manual service line shut-off valve on all new or replaced natural gas service lines. An EFV is a safety device inside the service line that shuts off the flow of natural gas in the case of excess flow ...
Valve, the valve chamber a mobile relief valve includes a valve chamber constitutes comprises a first portion and a second portion having a seat between the first portion and a second portion of the valve chamber. 阀瓣设置在阀腔内,它包括一中空圆柱体的第一部分,阀瓣的第一部分插在阀腔的第二...
excess flow valve 溢流阀；流量限制阀；超流阀；过流防止阀 很高兴第一时间为您解答，祝学习进步如有问题请及时追问，谢谢~~O(∩_∩)O
1、排大气应该是ATM，safe location不一定是大气，接收容器也说不准，如果有接收容器，有保护后部容器的...
excess flow valve 英 [ɪkˈses fləʊ vælv] 美 [ɪkˈses floʊ vælv]网络 溢流阀; 流量阀; 过流阀; 超流阀
166型过流阀 Excess FLow Valves也称超流自闭阀,适用于流体管道的流量超过设计额定值时,流体管道自动关闭。单法兰形式,属于溢流单向阀,与美国MGM过量流量止回阀一样,在阀瓣机构中配备孔口,以实现压力平衡,并且在管道二边衡压后将自动重新打开。法兰将适合150#或300#法兰的螺栓样式。阀门的两侧都应使用标准垫圈。 过...
An excess flow valve (EFV) for installation in a service line of natural gas distribution system serving an existing structure. The EFV has a cylindrical housing having a first length and a second length and a through hole therethrough for passage of gas. The EFV engaged in the through hole...
或者把过大流 ...这个小Excess Flow Valve在的线就0.25 inch 咋能保证的了
美 英 un.溢流阀 网络流量限制阀;减压阀 英汉 网络释义 un. 1. 溢流阀
Excess flow valveBaird Carl E