Sales phone：+86-021-67895388 E-mail： shghfmc@163.com
Technical knowledge
Your location：Home >> NewsLatest News
-
12-20 2024Valve performance testing2024-12-201. Inspection of appearance and logoCheck content: whether the appearance of the valve has defects, such as cracks, bubbles, dents, etc. Check signage, nameplate and finish for compliance.>
-
12-06 2024O-type ball valve and V-type ball valve difference2024-12-06Ball valve has many kinds of structure, but basically the same little difference, are the opening and closing parts for the round ball core, mainly by the valve seat, ball, sealing ring>
-
11-22 2024Effective troubleshooting method after trap failure2024-11-22In the thermal system, the thermal trap plays a very important role, and its performance directly affects the stability and energy efficiency of the steam system.>
-
11-08 2024Harm and protection of abnormal pressure boost in gate valve2024-11-08Gate valves usually have single gate, double gate, wedge, parallel and other structural designs>
-
11-01 2024Valve sealing surface grinding is a key step to ensure sealing performanc…2024-11-01The 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>
-
10-25 2024Valve sealing surface material selection factors to consider2024-10-25Sealing 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.>
-
10-10 2024What are the precautions for manual operation of electric valves2024-10-10The 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>
-
09-27 2024Working principle of pressure valve2024-09-27Pressure valve is a device used in hydraulic system to control and regulate liquid flow pressure.>
-
09-20 2024Six reasons for valve sealing surface damage2024-09-20Because the seal plays a role in cutting and connecting, adjusting and distributing, separating and mixing media on the valve channel, the sealing surface is often subjected to medium corrosion, erosion, wear and easily damaged.>
-
08-30 2024Method of preventing the regulator from getting stuck or blocked frequent…2024-08-3001, cleaning methodThe welding slag, rust, and residue in the pipeline cause blockage or jam in the throttle orifice, guide part, and balance hole of the lower valve cover, resulting in strain and scratch on the spool surface and guide surface>
+86-021-67895388
shghfmc@163.com 
93862333