Classic downstream valve. Esteemed for many years for its safe and reliable performance, due to its robust design and low maintenance.
多年来由于其坚固的设计和低维护，可靠的性能，使广大潜水爱好者用起来更安全。
Second check must be drip tight when pressure is applied to downstream side of valve.
当阀门下游一侧出现压力时，第二止回阀必须是无滴漏。
No matter how the valve is installed, the back of the upstream seat protects the face of the downstream seat.
无论阀门如何安装，上游阀座的后背都能够保护下游阀座的表面。
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)。
When valve is filled, open the downstream shutoff slowly and fill the water supply system.
阀门注满后，慢慢开启下游关闭阀对水供应系统注水。
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。
Create a third dynamic seal in the valve, in addition to the upstream and downstream seats, by introducing the purge media.
通过引入清洗流体介质，可以在上游和下游阀座以外，在阀门内生成第三动态密封。
Each lockout valve is equipped with an emergency shutoff feature that quickly exhausts all downstream air to atmosphere.
每个锁定阀配备了紧急关断功能，很快用尽所有下游的空气气氛。
Butterfly or similar type valves should be installed in the line upstream and downstream of the automatic control valve to allow for maintenance service.
在自动控制阀的上游和下游应该安装蝶阀或类似的阀门，以便于进行维护维修。
When the valve outlet pressure to a pilot valve spring set pressure, pilot valve opens, the control room to the downstream drainage.
当阀门出口压力降到导阀弹簧设定压力时，导阀开启，控制室向下游排水。
The author based on the above results designed a model of downstream direction bileaflet mechanical valve and used finite bulk method to calculate the velocity and shear stress profiles of this valve.
作者提出了一种顺向双叶机械瓣的设计模型，并用有限体积法对这种模型进行流场和剪应力分布的数值模拟。
Like many of the Fairchild precision regulators, the compensating action of the inner valve assembly of the Model 100 allows complete stabilization of downstream pressure.
飞兆半导体一样精确的监管机构，对示范100内部阀总成的补救行动的许多允许下游压力完全稳定。
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。
An activity metering unit (9) is operable to determine a level of radioactivity in a metering section (8) of the fluid delivery path downstream from the valve means (V1).
放射性测量装置(9)可操作以确定所述阀装置(V 1)下游的所述流体输送管道的测量部分(8)的放射性级别。
With the valve in the closed position the downstream air exhausts to the atmosphere.
如果这种阀门出于关闭位置，则下游气体将排放到大气中。
With the valve in the closed position the downstream air exhausts to the atmosphere.
如果这种阀门出于关闭位置，则下游气体将排放到大气中。
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