Can hydrofluoric acid be handled using C276 valves without a PTFE lining?
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As the title suggests, 40% 70% anhydrous hydrofluoric acid
Without even mentioning the temperature, who can tell you the answer?
Please specify the temperature, pressure, and pipe diameter. As long as the temperature does not exceed the operating temperature of PTFE, the cost-effectiveness of steel-lined PTFE is much higher than that of Hastelloy. If the temperature does not exceed 100°C, it is recommended to use fully plastic PVDF (polyvinylidene fluoride) valves. Our experience shows that they are not corroded at concentrations below 70%; there is no test data available for anhydrous HF. Under normal temperature conditions, PPH (β-polypropylene) all-plastic valves offer better cost-performance.
If you need valves made from special materials, please contact me. Our company specializes in the production of such valves; my phone number is 13289966270. Also, please specify the operating conditions, as it will be difficult to make a decision otherwise
C20, C276, and Monel are all options; however, the choice depends on cost considerations. Some customers prefer to use carbon steel and replace it regularly
It’s not that I don’t mention the temperature; I’m really a novice – I don’t even know when to consider the temperature factor. So I hope everyone can give me some guidance.