Sales phone：+86-021-67895388 E-mail： shghfmc@163.com
Technical knowledge
Your location：Home >> NewsLatest News
Lanzhou Petrochemicals jet …
On May 21st, in the centralized control room of the refining area of Lanzhou Petrochemi…
2025-05-23
Faults and maintenance of W…
If you do not carefully check the usage condition and performance specifications of t…
2025-05-16
Dagang Oilfield has indepen…
As of April 21st, the Port Intelligence application large model of Dagang Oilfield has …
2025-04-25-
05-16 2025Faults and maintenance of Wafer electric Butterfly valves2025-05-16If you do not carefully check the usage condition and performance specifications of the wafer-type electric butterfly valve before installation, the wafer-type electric>
-
04-11 2025What are the selection conditions of electric butterfly valve and pneumat…2025-04-11Electric butterfly valve is a very common pipeline flow regulation device, widely used, involved in many fields, such as the regulation of water flow in the reservoir>
-
03-21 2025The structure and working principle of the trap2025-03-21Steam trap in the steam heating system plays a role in preventing steam drainage, choose the right trap, can make the steam heating equipment to achieve the highest efficiency.>
-
02-28 2025How to choose the right valve in pipeline design?2025-02-28In the fluid piping system, the valve is the control element, its main role is to isolate the equipment and piping system, regulate the flow rate,>
-
02-21 2025Valve components anticorrosion precautions2025-02-21>
-
01-03 2025Method of judging internal leakage of natural gas ball valve2025-01-03Fixed shaft ball valve is commonly used on natural gas pipelines, and its general inspection method is: turn the valve to the fully open or fully closed position, and check whether there is leakage through the discharge of the valve body drain nozzle.>
-
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>
+86-021-67895388
shghfmc@163.com 
93862333