To indicate the level of the stem valve is opened or closed.
阀杆的高低能够指示阀门处于开启或封闭状态。
These diaphragms prevent leakage along the valve stem.
这些横膈膜防止了沿着阀杆的泄漏。
Valve Advantages: The replacement of elastomeric packings by metal diaphragms gives this valve superior leak integrity at the top works of the valve and stem.
阀门的优点：用金属横膈膜代替人造橡胶衬垫在阀门和阀杆的顶部机件处给予了这种阀门出众的泄漏完整性。
Starting at the valve stem you give a quarter turn, and then count three spokes and tighten a quarter turn, and so on around the wheel.
阀杆日开始，你给一个四分之一转，再算上三辐条和加强四分之一转，因此左右车轮上。
Clean exposed portion of valve stem (Do not scratch).
清洗阀杆的外露部分(不要划伤)。
Clean exposed portion of valve stem (Do not scratch).
清洗阀杆的外露部分(不要擦伤)。
Valve Disadvantages: the valve is prone to leakage around the stem, especially in-board leakage when a vacuum is pulled on the valve outlet.
阀门的缺点：当阀门排气口处是真空时，阀门在阀杆附近容易泄漏，特别是内部泄漏。
Align adapter bushing or gear operator (3) bore with valve stem (5).
用阀门的阀杆(5)对准适配器衬套或持论操作机构(3)镗孔。
Corrosion products formed by these reactions can prevent normal valve operation and can become embedded in the elastomeric stem tip, preventing the valve from making a complete seal.
这些反应产生的腐蚀产物会阻止正常的阀门运转，深入到人造橡胶阀杆顶端，造成阀门不能完全密封。
At this point the upper stem has lost contact with the diaphragms. The valve should be opened to this point but not back seated.
在此时，上阀杆已经失去了同横膈膜的接触。阀门应该开启到这一点，但不能反向固定。
The same force tends to reduce the seal on the pressure side with the result that bonnet cavity and the valve stem packing are nearly always subjected to maximum pipeline pressure.
而压力侧以相同的力削弱了密封，这样使阀盖腔室和阀杆填料几乎总是承受最大管道压力。
When you get back to the valve stem you start with the second spoke from the valve stem and continue the same way, and on the third pass you start with the third spoke from the valve stem.
当您回到您启动阀杆与第二阀杆上发表演讲，并继续以同样的方式，并在第三关你的第三个开始从阀杆发言。
The threads on the lower valve stem are in the wetted gas stream.
下阀杆上的螺纹是处在潮湿气流中的。
Varying the amount of pressure accurately positions the stem assembly to open, close or modulate the valve as required.
压力的变化将精确定位阀杆总成，使得阀门实现所要求的启、闭或调节的操作。
Loosen and remove the diaphragm lock nut and lock washer, pressure plate and diaphragm from the valve stem.
松开和拆卸隔膜锁紧螺母和锁紧垫圈，从阀杆上往下压阀盘和隔膜。
Why straight trip regulating valve stem smaller?
为什么直行程调节阀阀杆较细？
Replaceable hose filter and valve stem seals for field reliability.
可更换软管过滤器和阀门阀杆密封，使得现场应用可靠行更高。
Each must have stainless steel valve stem and decoration the valve should be provided with a waterproof housing and the end flange connection, unless otherwise indicated.
每个阀须有不锈钢干和装饰阀门应具有防水住房和提供法兰连接结束，除非另有说明。
Open or close the valve stem travel relatively short, and very reliable cutting action, making this valve is suitable for medium and cutting off or regulating use.
阀杆开启或关闭行程相对较短，并具有非常可靠的切断动作，使得这种阀门非常适合作为介质的切断或调节及节流使用。
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 NIBCO valve figure number and size must also be furnished and specify valve stem coupling for use with floor stand.
另外还要提供尼伯科阀门型号和尺寸，并说明所要采用的阀门阀杆与地轴架的连接装置。
B lifting, the rope not tied hand wheel or valve stem.
b起吊时，绳子不要系在手轮或阀杆上。
Remove the relief valve cover, stem/diaphragm assembly, and relief valve spring.
拆卸安全阀阀盖，阀杆/隔膜总成，和安全阀弹簧。
Remove the relief valve cover, stem/diaphragm assembly, and relief valve spring.
拆卸安全阀阀盖，阀杆/隔膜总成，和安全阀弹簧。
应用推荐