20 meters per second requires a big and fastvalve.
每秒20米,需要一个大的,快速的阀。
2
For the safety of gas transmission in long distance pipeline, the method regarding how to get the proper value of pressure drop rate for the fast block valve on pipeline is studied.
根据输气管道安全的需要,对干线快速截断阀压降速率设定值的确定方法进行了研究。
3
The allowable shut-off time of fast shut-off valve is calculated by inferred formula and selection way of fast shut-off valve in the gas supply system of gas burning boiler is summarised.