The disc and associated moving parts may be in a constant state of movement if the velocity pressure is not sufficient to hold the valve in a wide open and stable position.
如果流体流速压力无法将阀门支撑在一个较大的开启度并保持在稳定的开启位置，则阀瓣和相关的运动部件可能会处于一种持续振动的状态。
Fitting valve position feedback on manual valves now also becomes a more attractive option with the size and cost of the open solution.
现在由于开放式解决方案的尺寸和成本的优势，在手动阀上装配位置反馈也变得更有吸引力。
Lock the exhaust valve in its open position.
把排气阀固定在它开启的位置。
The hand wheel is always in the same position relative to the valve body regardless of whether the valve is in the open or closed position.
不管阀门是在开启或是关闭位置，手轮总是处在相对于阀体的同样的位置。
It is not necessary to open this valve to the full open position to provide full flow to the process.
必须把阀门开到完全开启的位置，以提供完全的流通。
This manually forces the valve to a wide open position for maximum flow.
这就人工强迫阀门开得更大以实现流量最大。
Check the valve parts before installation. Open and close the valve by hand for a period check the open-close position of the valve gate.
检查阀门各部位是否有松动现象，对阀门进行手动开启、关闭一个周期是否有异常现象，同时检查阀门的启闭位置是否准确。
An internally mounted, solid state positioner board accurately controls valve position from open to close.
内部安装的固体状态定位器主板能够精确控制阀门从开启到关闭的各种位置。
The valve stem and sealing surfaces are completely protected from dirt and corrosion by the stem cap, whether the valve is in an open or closed position.
不管是在阀门开启位置，还是关闭位置，阀杆和密封面有阀杆盖帽的保护，能防止污物入内，防止腐蚀。
The full open position in straight pattern globe valves has higher differential pressure (pressure losses) than an oblique pattern valve.
与倾斜式结构相比，直线式结构截止阀在全开位置具有更高的压差(压力损失)。
With optional Limit Stops, the valve can be set to open or close to any partial position.
设备中装有可供选择的限位器，在任何位置处均可打开或关闭。
An excitation device is operable in the open position of the valve member to ultrasonically excite the ultrasonic waveguide.
以及激励装置，所述激励装置在所述阀门构件处于打开位置时可操作以超声地激励所述超声波导器。
Failure position of valve shall be open.
故障时阀门位置为打开。
The PCV valve sticks in the open, maximum-flow position.
把PCV阀固定在开启位置即最大流量位置。
There is limit block on the valve disc to ensure the open-close position , which is controlled by the stroke switch.
阀门的启闭位置由行程开关控制，且阀板上设有限位挡块以保证阀板的启闭位置。
As the system responds to control, it can position the valve anywhere from closed to fully open.
在干蒸汽加湿系统对控制作出响应时，可以把调节执行器置于从关闭到全开的任何位置上。
The lowest % DFR circuit valve is the index valve and will remain in the fully open position.
最低%D FR回路阀是指标阀，将保持在全开的位置。
However, it takes some time for the valve to open to its full position. It also takes time for it to close tightly.
然而气门达到全开位置需要一定时间，完全关闭也需要一定时间。
In Electric actuators, the primary limit switches are used to control the open and closed position of the valve.
在电动执行器里，主要限位开关用来控制阀门的开启和关闭位置。
But like the inlet valve, the exhaust valve needs time to reach the full-open position, it also needs time to reach the full-closed position.
但是像进气门一样，排气门需要时间到达充分打开和关闭的位置。
Before taking a flow measurement reading, set the valve to its fully open (4.0) or at a preset position.
在获取流量测量读数之前，将阀门设置在全开(4.0)或在一个预调的位置。
Before taking a flow measurement reading, set the valve to its fully open (4.0) or at a preset position.
在获取流量测量读数之前，将阀门设置在全开(4.0)或在一个预调的位置。
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