亚洲一区欧洲一区_国产经典一区二区_岛国视频一区免费观看_小受咬床单失禁的GV在线观看_亚洲精品蜜夜内射_一性一乱一交一精一品

Pneumatic gate valve

Column:Technical article Time:2023-10-06
Product model: Z641H
Nominal diameter: DN50~800mm
Nominal pressure: PN1.6~6.4MPa


[Standard parameter]

Design standardAPI 600、API6D、ASME B16.34、GB/T 12234
Structural lengthASME B16.10、API6D、GB/T 12221
Connection standardASME B16.5、ASME B16.47、GB/T 9113、JB/T 79、HG/T 20592
Pressure testAPI 598、GB/T 13927、JB/T 9092
Pressure temperature ratingASME B16.34 、GB/T 12224


[Valve features]

1, the gate has two sealing surfaces, the sealing surface to form a wedge, wedge angle varies with valve parameters, usually 5 degrees.
2, wedge gate valve sealing principle is combined by two on the two upper wedge sealing surface and sealing surface of the valve body wedging, thereby sealing performance.3, wedge gate valve according to the stem drive gate opening and closing different ways, can be divided into bright rod gate valve (lift rod gate valve) and dark rod gate valve (rotary rod gate valve).
4, wedge gate valve in accordance with the different forms of the gate structure, can be divided into elastic gate valve and rigid gate valve.
5, the valve body for casting molding, valve body and valve cover with bolt connection, the middle flange using spiral gasket seal, the customer has special requirements can also be used metal ring connection.
6, the channel is smooth, the flow coefficient is small. The sealing surface is eroded and eroded by medium.
7, The sealing surface is made of alloy steel or hard alloy. It has good abrasion resistance and scratch resistance.
8, flexible graphite packing, reliable sealing, easy and flexible operation.
9, medium flow unrestricted, no disturb, do not reduce pressure.
10, The shape is simple, the structure length is short, the manufacturing technology is good, and the scope of application is wide.

[Valve structure drawing]

[Adaptive condition]
       The valve has the advantages of light switch, reliable sealing, good elasticity memory and long service life. The utility model can be widely used as an adjusting and intercepting device for pipelines such as water supply, sewage, building, petroleum, chemical industry, food, medicine, light industry, electric power, ship, metallurgy, energy system, etc..


主站蜘蛛池模板: 亚洲欧美中日精品高清一区二区 | 国产精品伦一区二区三区在线观看 | 国产精品福利一区二区久久 | 亚洲国产精品一区二区成人片不卡 | 免费国产一级 | 国产精彩免费视频 | 亚洲国产成人在线 | 高清无码免费视频专区 | 国产一级特黄aa大片免费看 | 国产无遮挡又黄又大又爽 | yyyy11111少妇无码影院 | av网址免费观看 | 欧美久久久久 | 懂色av影视一区二区三区 | 精品国产一区二区三区免费胖女 | 国产地址一 | 亚洲综合五区 | 国产精品拍国产拍拍偷剧情 | 天天鲁在视频在线观看 | 日日摸处处碰夜夜爽97 | 国产不卡视频在线播放 | 亚洲综合另类欧在线美 | 在线中文字幕观看 | 久久国产精 | 国产一二三四五区 | 国产一区二区免费看 | 精品综合久久久久久88 | 加勒比婷婷色综合久久 | av在线最新网址不卡最新 | 热久久国产欧美一区二区精品 | 亚洲欧美成人中文字幕在线 | 国产欧美一区二区三区另类精品 | 国产网红女主播精品视频 | 世界一级毛片 | 最近日本中文字幕 | 一区www| 国产艳妇AV在线观看 | 色视频在线观看免费 | 免费的特黄特色大片 | 日本免费一区二区三区高清视频 | 国产特级毛片AAAAAA高清 |