Who would like to speak about the material of the valve core?
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1. Are there any **standards** for NACE treatment of valves? Are there any special materials or treatments required for the valve cores in areas with high hydrogen sulfide levels? 2. What material is suitable for the valve core in an alkaline sulfide environment? It’s impossible to tell at a glance whether there has been corrosion after half a year of using 316.
What are the temperature and pressure? Fluorinated lining can be used
I borrow this platform to wish everyone a happy New Year and lots of good luck. Changzhou Chemical Research Institute offers services such as analysis of the components of unknown substances generated during research and production, testing of physical and chemical parameters for raw material and product quality control, analysis of competing products’ ingredients, formula analysis, and preparation of commercial inspection reports. If necessary, contact Engineer Wang at 18915086975
Our group has subsidiaries that collaborate with the German company Richter; for the operating conditions you mentioned, we use PFA-lined fluorine materials imported from 3M in Germany for production
Our company covers a total area of over 1,000 mu. For applications like yours, our branch offices use fluorinated lining materials such as stainless steel 304 with fluorine lining or PFA lining; if necessary, contact V19163339015
According to NACE standards MR 0175 or MR 0103, in alkaline sulfide environments it is necessary to take into account factors such as whether the medium contains particles, as well as temperature and pressure. If 316 steel does not provide sufficient corrosion resistance, options such as duplex steel or ALLOY 20/HA-C can be considered.
We are using 347+STL with anti-HIC treatment, which meets MR 0103 standards, and the results are good.