阀杆可以安装在任何位置，但是如果能够选择阀杆位置的话，实践表明将阀杆水平安装在阀门上是最好的方式。
The stem can be installed in any position, but if a choice of stem positions exists, good practice dictates that the valve be installed with the stem horizontal.
手轮可以拆卸并重新定位在环绕阀杆的六个位置中的任何一个位置上。
The handwheel can be removed and repositioned any of six positions around the stem.
阀杆也应该在顶部配置方向指示器，用于当手柄拆卸下来时指示阀瓣的位置。
The shaft also shall have a directional indicator on top to indicate disc position when the handle is removed.
将手柄恢复到正常位置，则“压杆”上的压力就得到缓解，使得调节阀能够保持正常的系统压力。
Returning the lever to its normal position releases the tension on the rod permitting the valve to maintain normal system pressure.
当手轮象开启位置旋转时，上阀杆离开横膈膜，弹簧推动下阀杆离开阀座。
When the handwheel is rotated toward the open position the upper stem is moved away from the diaphragms allowing the spring to push the lower stem away from the seat.
阀杆经特别处理以确保最佳固定，并能自动校正位置。
Stem, by special treatment to ensure that the best fixed, and can automatically correct location.
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 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.
本文对由伺服阀和无杆气缸组成的气动伺服位置控制系统进行了数学建模和控制研究。
The pneumatic servo positioning system, which is composed of rodless cylinder and the servo valve, is studied on mathematical modeling and control in this paper.
从阀杆上的阀杆O形环密封开始，然后在手柄安装在阀杆上后，将其压进手柄的位置上。
Start stem O-ring seal over stem, then press into position as handle is pressed down over stem.
注意：阀门装运时是处于关闭位置。塑料套筒上的指示器与阀杆上的垂直刻线对齐。
NOTE: the valve is shipped in the closed position. The indicator on the plastic sleeve is aligned with the vertical scribed line on the stem.
阀杆及其沟槽环和定位套筒显示阀门的节流位置。
The valve stem with its grooved rings and positioning sleeve indicates the throttled position of the valve.
如果需要，用木槌轻轻敲打，但是不要改变阀杆 位置。
Slight tapping with a mallet may be required, but do not change the valve stem position.
弹赞定位销可保证蝶板不会因为蝶板重力作用下坠，还可在下阀杆端部设置调整块来保证蝶板位置固定。
Play great positioning pin ensures disc not because butterfly plate gravity drop, also can be installed in the valve stem end adjustment block to ensure that the butterfly plate fixed position.
当手轮象开启位置旋转时，上阀杆离开横膈膜，弹簧推动下阀杆离开阀座。
The lower stem is encased in a spring which forces the stem away from the seat when the valve is opened.
容置所述阀的手柄，该手柄具有构建成在安装位置接收所述延伸杆的前端部分，及具有从该前端部分倾斜的手枪式握柄部分；
The valve trigger has a pistol grip section that extends along the pistol grip portion of the handle within reach of a user's hand grasping the pistol grip portion from behind.
自锁型气弹簧是一种可以在行程任一位置锁定的气弹簧。 在自锁型气弹簧的活塞杆端部有一个针阀打开这个针阀，则自锁型气弹簧可以象自由型气弹簧那样运行；
The piston rod self-locking type gas spring end there is a needle valve open the needle valve is self-locking type gas spring can run as the free type gas spring;
按阀杆的螺纹位置划分，可分为明杆闸阀和暗杆闸阀两种。
Position by the valve stem threads are divided into clear and dark bar bar gate valve two...
春季返回气动执行机构使用的空气供应，以推动一个方向阀杆和一个内部装载弹簧返回到原来的位置阀门。
The spring return pneumatic actuators use an air supply to drive the valve stem in one direction and an internally loaded spring to return to the valve to its original position.
在阀杆上设计有位置指示器，能够精确地指示阀瓣的位置。
The rising stem design incorporates a graduated positioning for throttling service.
在阀杆上设计有位置指示器，能够精确地指示阀瓣的位置。
The rising stem design incorporates a graduated positioning for throttling service.
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