旋塞阀

Valve was evolved from the stopcock.

球阀是由旋塞阀演变而来。

Evolved from the stopcock valve.

球阀是由旋塞阀演变而来。

Evolved from the stopcock High-Pressure Forged-Steel Ball Valve valve.

球阀是由旋塞阀演变而来。

Ball and plug is the same type of valve, only its closure is a sphere, the sphere rotates around the body axis to achieve open and close a valve.

球阀和旋塞阀是同属一个类型的阀门，只有它的关闭件是个球体，球体绕阀体中心线作旋转来达到开启、关闭的一种阀门。

Plug Valve's mostly cone-plug, with cone valve bore sealing surface with the composition of the Deputy.

旋塞阀的塞体多为圆锥体，与阀体的圆锥孔面配合组成密封副。

Wedgeplug O-Seal plug valves with their positive, no-leak features are not only recommended as the best general purpose valves for handling hydrocarbons, vegetable oils, solvents, etc., but are ideal for such tough service as butane, propane, butadiene, acetone, ethyl alcohol, ammonia, anhydrous ammonia, benzene, vinyl chloride, dry chlorine, Dowtherm, ethane, ethylene, hydrogen chloride, napthalene, oxygen, hydrogen, phthalic anhydride, dry phosgene, phosphoric acid, potassium carbonate, styrene, molten sulphur, sulphur dichloride and related services within a temperature range from -300oF to + 450oF within pressure limits of the valves.

楔塞O形密封旋塞阀具有积极的、无泄漏特性，不但是最好的通用的阀门，用于处理碳化氢，植物油，溶剂等，还特别适用于严酷的应用环境，如丁烷，丙烷，丁二烯，丙酮，乙醇，氨，无水氨，苯，氯乙烯，干氯，道氏热载体，乙烷，乙烯，氯化氢，萘，氧，氢，邻苯二甲酸酐，干碳酰氯，磷酸，碳酸钾，苯乙烯，融化硫，二氯化硫，以及温度在-184oC至232oC之间，压力在阀门额定压力等级范围内的有关应用。

With the use of boilers, 1681, has emerged lever hammer safety valve.

随着锅炉的使用，1681年又出现了杠杆重锤式安全阀。1769年瓦特蒸汽机出现以前，旋塞阀和止回阀一直是最主要的阀门。

Quick-Change Valve Plug- Removable groove pin allows quick, easy valve plug replacement.

快速更换旋塞阀，可移动槽引脚可快速，容易阀芯更换。

Valve Plug Stability- Rugged cage guiding provides increased valve plug stability, which reduces vibration and mechanical noise.

旋塞阀稳定性坚固的笼指导提供了更强的阀芯稳定，从而降低机械振动和噪音。

Plug valves and ball valves are more applicable to this purpose, therefore, mostly used for the shunt valve is selected in one of these valves.

旋塞阀和球阀较适用于这一目的，因此，大部分用于换向分流的阀门都选取这类阀门中的一种。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。