Safety accessories
Thread Content
May I ask whether the safety valves and stop valves on the pipelines in the chlorine buffer tank need to have a lined structure?
\"SH 3012 General Rules for the Layout Design of Petrochemical Pipelines\"
Yes, direct metal contact is not corrosion-resistant.
It must have a PTFE seal; otherwise, it won’t be inspected. This is an obstacle in the process of safety valve inspection. There are also private safety valve inspection stations that charge fees to issue reports.
After the safety valve calibration stations were turned into commercial enterprises, it had a significant impact on safety: 1. The fees charged by these calibration stations are already quite high; it’s difficult for them to break even, let alone make a profit； 2. Competition is fierce; many entities secretly increase fees to reduce costs, so users often choose agencies located a thousand or two thousand kilometers away to issue reports ； 3. The report contains vague information, and many essential details are missing. This leads to many false reports, which inevitably have flaws when examined closely.