The sealing performance of the valve directly affects the control effect of the fluid medium and the safe operation of the system, the grinding of the valve sealing surface is one of the important means to ensure its sealing performance, its main purpose is to eliminat…

Sealing surface is the most critical working face of the valve, the quality of the sealing surface directly affects the service life of the valve, and the material of the sealing surface is an important factor to ensure the quality of the sealing surface.Therefore, the…

On September 19, the oil production plant No. 3 of Huabei Oilfield, which had been shut down for more than 4 years due to high water cut, opened the well with ultra-short radius horizontal well technology, and the daily oil production reached 11 tons, which has been st…

The electric actuator of valve ‍ is used to control the valve. If the valve cannot be opened and closed due to some factors, such as power failure, failure of the electric actuator, or is fixed in a certain position, it needs to be operated by hand wheel. So, what sho…

Pressure valve is a device used in hydraulic system to control and regulate liquid flow pressure.Its working principle is based on the balance between the liquid pressure on the spool and the spring force. When the pressure in the hydraulic system exceeds the pressure …