国产全肉乱妇杂乱视频,久久日产一线二线三线品,无套内谢少妇毛片A片樱花,日本激情特黄三级激情视频

Home / Product

Product

Rubber

Rubber sealed gas gate valve

Nominal pressure:≥PN1.6
Nominal diameter:DN40~400mm

Application characteristics

It can only be fully opened and fully closed, and can not be adjusted and throttled. The dark rod elastic seat seal gate valve uses the whole valve package to produce deformation compensation to achieve a good sealing effect, which overcomes the phenomenon of poor seal, leakage medium and rust of the general gate valve, and more effectively saves installation space. The valve plate is fully coated and fully vulcanized with oil and gas resistant NBR synthetic rubber due to the compression resilience of the rubber, the double-layer bonding vulcanization process and the robust valve plate design, these characteristics give the valve excellent durability. The triple-safe stem seal system can be replaced with pressure, ultra-high strength stem and comprehensive anti-corrosion properties ensure unmatched valve reliability.


Elastic seat seal

The main sealing part is the integral ram covered by rubber, which produces a small amount of adaptive elastic deformation under the action of operating force and medium pressure, and forms an excellent sealing effect with the precision cast valve seat.

      <center id="vudui"></center>

      <center id="vudui"></center>

      • <u id="vudui"><listing id="vudui"><pre id="vudui"></pre></listing></u>
      • 主站蜘蛛池模板: 中文在线中文资源| 水莓100完全国产免费| 成全在线播放视频在线播放| 日韩女人性开放视频| 亚洲中文无码永久免费| 日本在高清av不卡| 蒙山县| 成全免费高清观看在线| 欧美av熟妇的荡欲| 乳尖春药H糙汉共妻| 日本a级视频在线播放| 沙河市| 乌恰县| 无码精品少妇一区二区三区久久| 电影《丰满的人妻》| 97伦伦午夜电影理伦片| 泰和县| 宿迁市| 暖暖视频日本免费观看视频| 成 人 黄 色 免费 网站无毒| 辣妹子影院电视剧免费播放视频 | 马公市| 永年县| 欧美牲交av欧美牲交aⅴ暴力| 峨边| 国产日韩一区二区三免费高清 | 日本亚洲欧美在线视观看| 日本无码一区| 股票| 龙山县| 日本无遮掩裸身图片| 扬中市| 曲水县| 隆安县| 国产精品久久久久久久久久久久| 乐都县| 大地资源二在线观看免费高清| 黑山县| 抚宁县| 丰满的继牳2理伦片| 万宁市|