If upstream pressure can exceed D101 design pressure, it will add a block-in contingency to safety valve sizing.
如果上游压力会超过D101的设计压力则会给安全阀的调节带来出现意外堵塞的一种情况。
Installed in a mainline it prevents upstream pressure from dropping below a preset minimum. Solenoid override of the sustaining function allows for electrical on-off operation.
安装在主管线内，防止上游压力降到预置最小压力以下。电磁阀的过载平衡功能使其能够进行电气开-关操作。
It was theorized with a high degree of probability that the change in period was due to the nonlinearity of the hydrodynamic pressure acting on the upstream face of the dam.
据推论最大可能性是在那一时间段非线性水压作用于坝体上游面所造成的差别。
Intercept the fluid medium upstream of the valve to be inspected with a shut-off valve and ensure that the subject valve is not under pressure (vent downstream, if necessary).
截取阀门上游的流体介质，用一个关闭阀门来进行检测，确保相关的阀门不处在压力下(如果必要的话，排除下游的流体介质)。
Control supply line water pressure. install a soft seated spring loaded check valve upstream of the assembly.
控制供应管道的水压。在总成的上游安装一个软阀座，弹簧负载止回阀。
There is a pressure probe at a measurement location a distance L upstream of the blade row.
距叶栅上游长度为L处有一个压力探测器。
Suction block and downstream piping is rated for discharge pressure, however the piping upstream including EBV is not rated for discharge pressure.
吸入口切断与下游管道按排放压力定型，但是上游管道(包括EBV)不是按排放压力定型的。
The two dimensional fluid Reynolds equations were established using the finite element method. The pressure distribution, opening force and upstream pumping rate of spiral groove were obtained.
用有限元数值计算的方法得出了一定条件下螺旋槽上游泵送机械密封端面间液体的压力分布、开启力及上游泵送量等。
Each valve is fitted with 2 pressure test points, red strap indicating upstream (high pressure) and blue strap indicating downstream (low pressure) for differential pressure measurement.
每个阀门配置2个压力测试点，红带表示上游(高压)，蓝带表示下游(低压)，用于压差测量。
Along with the increase of the secondary flow pressure ratio, the shock move toward upstream divergent section and the thrust vector angle gradually increases;
次流压比的增加将导致激波向扩张段上游移动，且喷管矢量角不断增加；
A check valve that controls fluid flow rates to maintain a predetermined, constant pressure upstream from the valve.
为保持阀的上游的预定不变的压力所用的控制流体流量的一种止回阀。
The inlet pipe penetration into the vessel, the pressure drop across any block valves used. upstream of the venting device, and the inlet piping must be considered when determining these losses.
对与容器连通的进口管，要使用其通过阻断阀时的压力降。在确定这些压损时，必须要考虑进口管线和放空装置的上游线路。
While medium pressure and the upstream end of the resilient and flexible structures to increase the downstream end of the valve seat seal.
同时介质压力与上游端挠性结构的回弹力又增加了下游端阀座的密封。
The letdown back-pressure regulating valve maintains pressure in the section of letdown upstream or the letdown heat exchanger to prevent the letdown liquid flashing to steam.
下泄背压控制阀维持下泄流上游段或下泄热交换器处的压力，防止压力过低引起流体汽化。
They may be installed either upstream or downstream of a regulator or meter, and may be controlled directly or from a remote pressure source by means of an external control line.
它们可安装于减压阀或计量表上下游，并可直接控制或以外接远端压力源控制线做远端控制。
They may be installed either upstream or downstream of a regulator or meter, and may be controlled directly or from a remote pressure source by means of an external control line.
它们可安装于减压阀或计量表上下游，并可直接控制或以外接远端压力源控制线做远端控制。
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