国产又粗又黄又爽_中国女人a毛片免费全部播放_国产女人被躁高潮视频在线视频最新_一级毛片免费完版_成人精品欧美日韩_五月丁香色综合久久4438_国产成年人免费观看91视频_宅宅236伦理2019最新_blue在线观看视频全集资源_国产欧美日韩麻豆三级

簡體中文版 English

Product List

Introduction:
Ball valve is itself, compact structure, reliable sealing, simple structure, convenient maintenance, sealing surface and the spherical often in the closed state, not easily be medium erosion, easy operation and maintenance, applicable to water, solvent, acid and gas, such as general work medium, but also is suitable for the working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene, widely used in various fields. The ball valve body may be integral or modular. Features:
1, suitable for frequent operation, quick opening and closing, light.
2. Low fluid resistance.
3, simple structure, relatively small size, light weight, easy to maintain.
4. Good sealing performance.
5, not restricted by the installation direction, the flow direction of the medium can be arbitrary.
Function:
Brass ball valve is mainly used for cutting off, distributing and changing the flow direction of medium in the pipe.
Principle:
Brass ball valve is evolved from the cock, its opening and closing as a ball, using the ball around the axis of the stem rotation 90o to achieve the purpose of opening and closing.
Scope of use: this product can be used in water heating system, tap water, chemical industry and other industries.
Mandatory
Mandatory
Mandatory
Mandatory

Be sure to write clearly consulted or purchase products detailed parameters and quantity.