色黄乱淫有声小说 I 狠狠色丁香婷婷久久 I av噜噜噜 I 美女被c视频网站 I porn国产 I 精品日韩成人av I 亚洲伊人一本大道中文字幕 I 婷婷色五 I 2019中文字幕第三页 I 欧美极品美女视频网站在线观看免费 I а√天堂中文官网在线8 I 成人在线三级视频 I 三级影片在线观看欧美日韩一区二区 I 久久精品女人天堂avapp下载 I 久久久国产精品网站 I 狠狠色丁香婷婷综合视频 I 黄色抖音短视频 I 伊人久久精品久久亚洲一区 I 九色精品在线 I 久久人人看视频 I 国产精品99久久久久久夜夜嗨 I 少妇玉梅销魂呻吟 I 欧美日韩手机在线视频 I 亚洲成年人网址 I 亚洲三级久久 I 一级黄色软件 I 欧美高清v I 国产精品极品美女观看免费 I 色激情小说 I 中文天堂av I 国产精品久久久久7777婷婷 I freesexvideos高潮 I 国内精品久久久久久久影视红豆 I 美女坐爱视频 I 99亚洲精品在线

Full diameter full welding ball valve

Dateline:2014-11-30    Hits:


Full welded ball valve, there will be no external leakage.

Because the seat is made of carbonized teflon seal ring and disc spring form, so thechanges in the pressure and temperature of the strong ability to adapt, not in theannotation of pressure and temperature range to produce any discharge slide.

The machining process of sphere has detector advanced computer tracking and detection, so the machining precision of the high sphere.

As the valve body material and pipe material, won't appear the stress is not uniform,will not because of the earthquake and the vehicle through the ground from generating deformation, pipelines aging.

The sealing ring body with contents of 25%Carbon (Tan Su) RPTFE material, ensureno leakage (0%).

Buried welded ball valve can be directly buried underground, don't build high largevalve well, just set small shallow wells in the ground, save construction cost andconstruction time.

According to the construction and design requirements of the pipeline, adjust thebody length and the stem height.

The machining precision of sphere is very precise, easy operation, no harmfulinterference.

Raw materials used in advanced, can guarantee the pressure more than PN25.

Compared with similar industry with the same specification product body is small, andthe appearance is beautiful.

In normal operation, to ensure that the valve use case, life in 15 years.


手機網站