国产自偷亚洲精品页35页,粗大猛烈进出呻吟声视频,老太性开放bbwbbwbbw,狠狠色综合网站久久久久久久,性xxxxx瑜伽,三级成年网站在线观看级爱网,欧美猛少妇色xxxxx,吃奶揉捏奶头高潮视频在线观看

What is the difference between ball valves, gate valves and globe valves?

Time:2020-09-11
Valves are used to control the flow of liquid and gas.Ball valves, gate valves and globe valves are used to control the flow of liquids.These various forms of valves are used to create waterways

Valves are used to control the flow of liquid and gas.Ball valves, gate valves and globe valves are used to control the flow of liquids.These various forms of valves are used to create waterways, so it is important to understand the differences and their USES.

Ball valve is introduced

Ball valves made of sturdy components provide high durability and perform perfectly even after a long idle period.It has a ball made of brass, stainless steel or chrome-plated brass and is embedded in the conduit.At the top of the ball is a lever that shakes only a quarter of a turn.The sphere allows water to flow when the horizontal plane is parallel to the pipe.A solid ball prevents water flow when the lever is perpendicular to the pipe.Water flow is controlled by moving the lever from 0 to 90 degrees from the angle of the pipe to which it is attached.
On the other hand, you can make the water part flow through the pipe by holding the lever between the two limits, but the pipe may become deformed due to water pressure.
The advantage of this valve is that you can open or close it easily and quickly.However, water will always hammer the sides of the ball and pipe unless it is fully opened to guide the water.

Globe valve introduction

Globe valves are wheel-based valves that, when opened, reduce water flow through the pipeline by means of a set of retaining rings fixed in a spherical body.Globe valves consist of a spherical area divided in two by the opening that forms the seat.On this seat, the plug can be tightened using a wheel that controls or completely stops the flow of water.
Whether the stop valve is open or closed, especially when partially open, is difficult to understand.In addition, it cannot be operated with one hand as a ball valve.

Gate valve is introduced

Gate valves are used to control the flow of liquids and are usually operated by turning the wheels and moving the gate valve up and down.When the wheel is turned to lower the gate, the wheel reaches its lowest position, which prevents the flow of water.When the wheel is operated in the opposite direction, the gate is in the highest position and water can flow unimpeded.
It is easy to see where the gate valve is located by looking at the rising stem as part of the gate valve.If the stem rises and is visible, the gate valve is open; if the stem is not visible, the gate valve is closed.
Gate valves remain in contact with running water and are therefore highly susceptible to corrosion, subsequent failure and ultimately rupture.The water hammer has little chance because it operates slowly.It should be used in open or closed conditions and may be damaged by water pressure and vibration if improperly retained.


主站蜘蛛池模板: 无码专区狠狠躁躁天天躁| 秋霞鲁丝片av无码少妇| 国产av大陆精品一区二区三区| 亚洲精品无码不卡在线播放he| 国产精品导航一区二区| 欧美国产日本高清不卡| 播五月开心婷婷欧美综合| 日本乱码一区二区三区不卡| 国产女人高潮抽搐叫床视频 | 欧美颜射内射中出口爆在线| 国产偷国产偷亚州清高app| 天无日天天射天天视| 99re6在线视频精品免费| 亚洲伊人色综合www962| 国产美女精品自在线拍免费| 欧美激情性xxxxx高清真| 亚洲精品无码专区在线播放| 在线观看片免费视频无码| 麻豆中字一区二区md| 又黄又爽又色又刺激的视频| 日韩 欧美 动漫 国产 制服| 99精品国产一区二区三区2021| 国产成人精品亚洲午夜| 亚洲字幕成人中文在线电影网| 亚洲精品久久久久999666| 青草av久久一区二区三区| 亚洲一卡2卡3卡4卡5卡乱码观看 | 西西人体大胆午夜视频| 成人爽a毛片免费视频| 亚洲精品日本一区二区三区| 久久夜色撩人精品国产av| 久久国产伦子伦精品| 伊人久久无码大香线蕉综合| 19禁无遮挡啪啪无码网站| 97精品国产一区二区三区四区| 亚洲乱人伦中文字幕无码| 国产亚洲日韩a欧美在线人成| 中无码人妻丰满熟妇啪啪| 天天澡天天添天天摸97影院| 亚洲真人无码永久在线观看| 草裙社区精品视频播放|