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: 香蕉久久国产AV一区二区| 调兵山市| 成人做爰A片免费看网站性晶| 欧美牲交aⅴ人妖| 久热视频 这里只有精品| 台中县| 人与禽性动交ⅩXXX| 盐城市| 甘孜| 驻马店市| 大丰市| 无码精品人妻一区二区三区湄公河 | 紫金县| 性开放A片免费看| 上虞市| 久热国产精品视频一区二区三区| 五指山市| 少妇厨房与子伦hd| 公在厨房扒开腿让我爽了在线观看| 亚洲视频一区| 顺昌县| 邹平县| 友谊县| 抚顺县| 三年在线观看免费大全哔哩哔哩| 欧美性生恔XXXXXDDDD| 日本亚洲中文字无码| 久久精品国产亚洲AV天美18| 深圳市| 庄浪县| 安远县| CHINESE国产高清AV| 涪陵区| 成人永久免费CRM入口在哪| 望城县| 欧美黑肥妇野外bbw| 日本湿妺影院免费观看| 视频| 成全在线观看免费高清电视剧| 人与动人物av片欧美| 欧美一区二区视频高清专区|