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:DN100~300mm

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: 勐海县| 茌平县| 欧美华人整片av海量资源| 五常市| 东至县| 日本无码sm凌虐视频| 惠东县| 章丘市| 日本无码sm凌虐视频| 精品国产18久久久久久| 人体裸体BBBBB欣赏| 特级BBBBBBBBB视频| 日本无码中文无码卡通动漫| 欧美av旡码高清免费播放| 天天噜噜噜在线视频| 国产麻豆剧传媒精品国产av| 强伦人妻一区二区三区视频18| 强伦轩一区二区三区四区播放方式 | 一炕四女被窝交换啪啪| 青青青欧美视频在线观看| 免费观看全黄做爰的视频| 高H各种姿势调教1V1| 会泽县| 成全大全免费观看完整版高清| 日本不卡一区二区三区在线| 利川市| 青草草97久热精品视频| 孙吴县| 成全在线观看免费完整| 久久精品99久久久久久久久| 成全影院高清电影好看的电视剧 | 精品一区二区三区四区| 靖州| 东京热无码中文字幕AV专区| 山东| 云霄县| 蒲江县| 平顶山市| 息烽县| 乐业县| 新巴尔虎右旗|