When the closed channel, the wedge-shaped head with a stem to open up the ball and pressed to seal the valve seat.
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。
Gate has two sealing surfaces, the most commonly used wedge gate valve sealing surface to form two wedge-shaped, wedge Angle parameters vary with the valve.
闸板有两个密封面，最常用的楔式闸板阀的两个密封面形成楔形，楔形角随阀门参数而异。
And because the wedge block and the role of the dovetail groove of the stem, the valve increases the forced sealing force, increases the sealing pressure ratio, the two-way sealing.
而且由于阀杆的楔形块与燕尾槽的作用，对阀门增加了强制密封力，增大了密封比压，实现双向密封。
The inner end of sampling tube is one-sided slant wedge with the caliber of check valve;
采样管的里端头为与逆止阀的内口径呈上斜面的单面楔形；
Technological experimental research for cross wedge rolling technology of pin valve of oil pump has been introduced with problems and relevant solutions during the process.
介绍了油泵油嘴针阀体的楔横轧工艺试验，以及在试验中遇到的问题及解决方法。
It is for hardfacing of continuous casting roll, steam valve, wedge-shaped valve, safety valve, etc.
适用于连铸辊、蒸汽阀、楔形阀、安全阀等部件的硬面堆焊。
The bottom of the disc is made of knife-shaped gate with a cut off function of the medium. When gate is closed, oblique plane of gate valve encounters wedge block of gate to achieve sealing effect.
闸板底部做成刀形斜面具有切断介质功能，而且闸板关闭时通过阀体上的锲块紧靠闸板斜切面使得闸板紧紧贴靠阀座密封面，从而起到了密封效果。
This article gives a brief description of a special tool for assembling and disassembling of seal rings in the wedge-shaped gate valve for oil (gas) well-head assembly.
本文简要地介绍了装拆采油(气)井口楔形闸密封圈的一种专用工具。
Wedge gate valve take advantage of wedge style dense cover seal up, Can by hand wheel plus carry regulate dense cover paste equal to tightness degree.
楔式闸阀利用楔式密封面密封，可通过手轮加载调节密封面贴合的紧密度。
Wedge gate valve take advantage of wedge style dense cover seal up, Can by hand wheel plus carry regulate dense cover paste equal to tightness degree.
楔式闸阀利用楔式密封面密封，可通过手轮加载调节密封面贴合的紧密度。
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