The present regulating valve core isn 't provided with the safety device ; the valve is closed by the valve core after a valve rod breaks causing that the production stops .
现有的调节阀芯无保安装置， 阀杆断裂后阀芯将关闭阀门，使生产中断。
The utility model relates to a single-action two-way equalizing valve comprising a valve body a valve plug a valve rod a pressing cover a compensating cushion ring etc.
本实用新型是一种单动双通平衡阀，由阀体、阀塞、 阀杆、压盖、补偿垫圈等组成。
Therefore it is most simple and available method for reducing or removing the vibration that the natural frequency of valve rod is regulated .
调整 阀杆固有频率是消除调节 阀振动最简便和有效的方法。
The utility model is provided with separate isolating valve aeration valve vacuum valve and thief rod mating the sampling cavity to keep the air in the furnace cavity and realize on-line sampling .
本实用新型设置了独立的隔离、充气、真空 阀门以及与取样腔配套的取样 杆，使取样过程中的炉腔内气氛不变，达到在线取样的目的。
Theoretical Study and Failure Analysis of Valve Rod Slot Fracture
排气 阀杆 锁 夹槽断裂分析及机理研究
The valve rod ( steel 35 ) is nitrided in the fluid soft nitriding process the main material being made up of urea .
采用以尿素为主要原料的液体软氨化工艺，对 阀杆（35钢）进行了氮化处理。
The internal structure adopts the plane sealing technology which has reduced the rotary moment of the valve rod .
内部结构采用平面密封技术，减小了 阀杆旋转力矩。
This sets the valve push rod to the exact length .
这样可以将 阀门 推杆设定在准确的长度。
The value of the valve seat angles is an important parameter for designing the valve assembly in a sucker rod pump .
抽 油泵阀座锥角2α是 泵阀 结构设计中的重要参数。
A study on the failure of the valve balls of rod pumps
抽 油泵 凡尔球失效分析
Analysis and Structural Optimization of Three dimension finite element for Valve seat on Anti gas Rod Pump
防 气泵 阀座的三维有限元分析及结构优化
When the discharge pressure keeps constant the relationship between displacement of valve rod and suction pressure wobble plate case pressure flow rate through control valve have been obtained .
研究结果得出了当排气压力恒定时， 阀杆位移同吸气压力、摇板箱压力以及控制阀流量的 稳态 特性关系。
The influence of the parameters of the valve ( in particular the spring rigidity of the valve rod ) on flow-dividing accuracy is analysed in the rate of self-regulation and the steady-state error .
从快速性和稳态误差二个方面，分析了元件参数（特别是 阀芯定位弹簧刚度）对分流精度的影响。
In the utility model when a turning valve rod is regulated the hair dye or hair care liquid which is contained in a comb body flows to a water absorption sponge on the bottom of the comb teeth .
它是将染发水或护发液装在梳体内，通过调节转向 阀杆使其流在梳齿底上的吸水海绵个上。
Method for calculating pressure drop over valve of sucker rod pump
抽 油泵 阀 开启压差的计算方法
Closed Valve Bonnets in Sucker Rod Pumps
几种抽 油泵闭式 阀罩
To avoid these two kinds of noise the paper gived some requirements to the internal structure design of shock absorber such as piston valve system bottom valve system piston rod etc.
为降低或消除这两种减振器噪声，提出了对减振器内部结构如活塞阀系统、 底阀系统以及活塞 杆等的设计要求。
The elastic sealing element can seal the valve rod and the valve seat when pressure in the cooker is started to be increased .
由于阀座下部设有弹性密封件，在压力锅上 气后，弹性密封件密封 阀杆和阀座。
The pistons are at certain intervals and are interconnected via a coupled axle ; the valve core and a valve rod are connected into an integrative body .
各活塞间相隔一定距离，并通过连轴互相连接，阀芯与 阀杆连成一整体。
Failure Analysis of Valve Seats of Sucker Rod PumPs
抽 油泵 阀座失效分析
The opening and the closing of the gate valve are realized by a manual pump ; the past bulky gate valve with a hand-operated screw rod is replaced .
闸阀的开启和关闭靠手动泵来实现，取代了过去手摇 丝杠的笨重 闸阀。
How to Select Valve Ball Diameter in Sucker Rod Pumps
抽 油泵 阀球直径的选择
Analysis and Prevention Measures for Quenching Crack of 45 Steel Valve Rod
45钢 气门 推杆淬火裂纹原因分析及预防措施
Analysis of discharge valve rod failure and its improvement
放料 阀 阀杆的失效分析与改进
In a gas outfit of an automobile the rocker arm insert and the valve rod form frictional mates that move back and forth so their working conditions are complicated and bad .
汽车发动机配气机构中的摇臂与 气门 杆构成往复运动的摩擦副，服役条件复杂而恶劣。
The wellhead throttle valve is made up of nozzle plunger-shaped spool throttle value valve body and valve rod etc.
该井口节流阀由喷嘴、柱塞形阀芯、节流轴、阀体、 阀杆等组成。
Improvements of Seals for Piston Rod of Air Compressor and Steam Valve Rod
空压机活塞杆与蒸汽 阀杆密封的改进
Design and Application of Special Valve for Preventing Rod from Jamming for Full Hydraulic Drilling Jumbo
全液压凿岩台车专用防卡 杆 阀的设计与应用
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阀杆