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2022-11-07
Precautions for ball valve maintenance
If there is slight leakage at the packing, the valve stem nut must be locked again. But do not lock it too tightly. Usually lock it for 1 / 4 ~ 1 turn, and the leakage will stop.
2022-11-07
How to select high quality electric ball valve
When purchasing electric ball valves, the practice of only specifying the specifications, categories and working pressure to meet the procurement requirements is imperfect in the current market economic environment.
2022-11-07
How to correctly select electric ball valve
It is reported that in the next 10 years, China will have more than 20000 kilometers of oil pipelines to be built, including transnational oil pipelines such as Russia and Kazakhstan. In addition, after the "west to East Gas Transmission", China will also build more than 20000 kilometers of transnational gas transmission pipelines and branches.
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