Railway loading system ball valve
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Which brands do you use for two-position shut-off ball valves in refinery railway loading systems? The ones we use here don’t work well; they experience internal leakage.
I don’t know what caused the internal leakage Can it be stated explicitly?
In the loading system, we have been using OVAL two-stage ball valves, and they have worked very well. The leakage problem mentioned by the poster is caused by quality issues with the sealing materials!
Yes, it’s a seal leakage issue; a soft seal is being used