How to maintain the gas meter valve? Introduce a few points: 1. The storage environment of the valve should be paid attention to. It should be stored in a dry and ventilated room and block both ends of the passage. 2. The valve should be checked regularly, and the dirt on it should be removed, and a... read more
Ball valves are evolved from plug valves. It has the same 90-degree rotating movement, the difference is that the cock body is a sphere with a circular through hole or channel passing through its axis. The ratio of the spherical surface to the channel opening should be such that when the ball rotate... read more
There are also several types of natural gas meters. One is an ordinary gas meter, which means that it is not allowed to install batteries, and only has a mechanical counter. Then there is no valve inside this meter. If you want to turn off the gas, you must use gas. Valves before or after the table.... read more
1. Sealing performance. The sealing performance of the valve refers to the ability of each sealing part of the valve to prevent medium leakage, and it is the most important technical performance index of the valve. There are three sealing parts of the valve: the contact between the opening and closi... read more
①Electric butterfly valve is a saving device, which belongs to the moving parts. Compared with the detection element, transmitter and controller, during the control process, the electric butterfly valve needs to continuously change the flow area of the saving part, and the manipulated variable is ... read more