介绍了大口径船用瓶头阀的结构、性能和设计要点，该阀具有设计新颖，密封可靠的特点。
To introduce the structure, performance and key elements of the design of large diameter Marine cylinder valve. It is original in choice of design and has a reliable sealing feature.
这项分析和单个火炬头的最大安全阀负荷有关。
The analys is about the maximum safety valve load on each flare header.
对阀盘、耳轴活塞杆头的染料渗透剂测试。
Dye-penetrant testing of the disc trunnions and piston rod heads.
保持阀芯头与阀座环对中，对于严密关闭是重要的。
To maintain the spool in the head and valve seat rings for tight closure is important.
造船工业。带自动阀的测深管测头。阀体详图。
Shipbuilding . head of sounding pipes with self - acting valve . details of body.
不锈钢阀头和阀座延长使用寿命。
Stainless steel valve head and seats provide long service life.
首选应用是轴承结构，包括滚珠和轴套。还有，它也能用来做刀具、针形阀、球型止回阀、阀门基座、泵零件、球头螺栓、轴套、抗磨损纺织机械。
In addition, it should be considered for cutlery, needle valves, ball check valves, valve seats, pump parts, ball studs, bushings, and wear-resistant textile components.
当关闭通道时，用阀杆的楔形头使球体涨开与阀座压紧达到密封。
When the closed channel, the wedge-shaped head with a stem to open up the ball and pressed to seal the valve seat.
注意：如果只是维修阀瓣，就不要拆卸阀瓣固定器，只需拆卸支撑阀瓣固定器板的六角头螺丝和拆卸阀瓣即可。
NOTE: the disc holder should not be removed when servicing only the disc, remove Allen head screws holding the disc retaining plate and replace disc.
通过将电子膨胀阀与受控对象(蒸发器)细化分开来，并依据恒定开环增益准则从理论上分析了阀头补偿原理。
Through dividing electronic expansion valve from evaporator system and based on constant gain of superheat open loop rule, the compensation theory of valve head was analyzed.
应彻底清洗所有和物料接触的部件，包括活塞缸、活塞头、O型圈、单向阀、灌装头、料桶、料斗等，发现破裂损伤的密封应及时进行更换。
Thoroughly clean all parts exposed to material, including piston barrel, piston head, O-ring, one-way valve, filling head, feeding tank, hopper, etc. Damaged seal shall be immediately replaced.
得到了膨胀阀的流通面积、阀头结构、膨胀阀入口密度、阀后比容对流量特性的影响，并拟合了流量系数关联式。
The influence of flowing area, structural of valve head, inlet density and outlet specific volume to mass flow coefficient were studied.
在对其进行分析计算的基础上发现了现有膨胀阀阀头线型设计方法的不足，并提出了通用的阀头线形几何模型的建立方法。
By analysis of them, some shortcoming is detected and a universal modeling method of electronic expansion valve core is put forward at last.
打开阀净化室堵头。
采用HPB591国标黄铜阀头，品质有保障。
与交替抽吸阀装置装配在一起的清洁头(1)，清洁头设有弹性滑动基底(2)，滑动基底能够在其平面内自由旋转。
This device comprises a cleaning head (1) being fitted with an alternately suctioning valve arrangement and provided with an elastic sliding base (2) being freely rotatable in its plane.
[目的]找出空调四通换向阀产品封头-铁素体不锈钢棒材开裂失效的原因。
This is to study the reasons why water leakage failure is caused by 4-way reversing valves-ferrite stainless steel bars.
[目的]找出空调四通换向阀产品封头-铁素体不锈钢棒材开裂失效的原因。
This is to study the reasons why water leakage failure is caused by 4-way reversing valves-ferrite stainless steel bars.
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