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: 丰镇市| 日本免费的高清毛片视频| 中文字幕AV一区二区三区| 安乡县| 中文欧美成人性色XXⅩXXA片| 日产MV和欧美MV的区别| 欧美疯狂party性派对| 达日县| 欧美肥老太交性视频| 成全高清免费观看竹子画法| 日本妇人成熟a片| 阳原县| 大肉楱征服岳乱妇小说| 日本日本乱码伦视频在线观看 | 荥阳市| 日本无码av片在线电影网站| 国产SUV精品一区二区6| 成全视频在线观看大全腾讯地图| 日本无码中文字幕专区一二三 | 久热这里只精品99re8久| 老人性做爰A片老妇人| 欧美三级欧美成人高清| 吴堡县| 泸水县| 强伦轩一区二区三区四区播放方式| 新野县| 日本按摩强伦姧在线观看| 欧美成人看片一区二区三区尤物| 横山县| 亚洲国产成人精品久久久| 漂亮人妻洗澡被强公bd| 人妻激情偷乱视频一区二区三区| 丹棱县| 新晃| 神木县| 文昌市| 保山市| 临沂市| 侯马市| 翁与小莹高潮24章| 被老师粗大jib捣出了白浆视频|