亚洲女人高潮抽搐免费视频,美女视频一区三区网站在线观看 ,亚洲av专用在线中文,日本高清在线视频www色,国精品人伦一区二区三区蜜桃 ,国产综合色产精品

Zhejiang Sitong Valve Manufacturing Co., Ltd.

Zhejiang Sitong Valve Manufacturing Co., Ltd.

Company News

Structure and installation of the shut-off valve

Time:2019/5/7 16:25:27 View 10424
There are many kinds of structural forms and specifications of the globe valve, and new products and new structures will appear. So, what kind of structure does the existing shut-off valve have? In addition, what should you pay attention to when installing and maintaining?
The structural form of the globe valve:
The structure of the shut-off valve body is straight-through, direct-flow and right-angle. Straight-through is the most common structure, but its fluid resistance is greatest. DC fluid resistance is small, and it is mostly used for fluids containing solid particles or high viscosity. The right angle valve body is mostly forged, suitable for small through, high pressure shut-off valves.
The following items should be noted for the installation and maintenance of the shut-off valve:
1. The handwheel and handle operated shut-off valve can be installed at any position of the pipeline.
2. Handwheels, handles and aerodynamic mechanisms are not allowed to be used for lifting.
3. The flow direction of the medium should be consistent with the direction of the arrow shown in the valve body.
For those who are constantly in contact with the shut-off valve, the protection of the shut-off valve is more conducive to its service life.
富顺县| 许昌市| 邳州市| 阿尔山市| 襄汾县| 龙南县| 维西| 会同县| 镇原县| 千阳县| 民权县| 栾城县| 裕民县| 青冈县| 洛川县| 文登市|