Chlorine safety valve
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Question: For an environment with anhydrous chlorine gas at a temperature of 200°C, can a regular bellows-type safety valve be used instead of a safety valve designed specifically for chlorine?
A regular safety valve will do; the corrosion caused by chlorine varies greatly depending on whether it contains water or not. For dry chlorine, just a bellows is sufficient
In terms of the corrosiveness of the medium, ordinary bellows safety valves can be used, as anhydrous chlorine gas is hardly corrosive at all. But why are there safety valves specifically designed for chlorine gas? It’s due to regulations: if you don’t use them and get inspected by safety authorities, it becomes a real headache. Moreover, in case of an accident, it would be a major blemish on your record. In reality, a safety valve meant for chlorine gas is simply one that has the word “specialized” added to its description
No. Water vapor is generated during production abnormalities or startup/shutdown
We basically don’t have any safety valves designed specifically for chlorine. After checking, I found that safety valves for chlorine are simply valves with fluorine-lined interiors
Our operating conditions involve a temperature of 200°C. The safety valve designed specifically for chlorine gas has a plastic lining; it can’t be used at all
What process do you use for chlorine? 200°C – that’s quite a high pressure. Have the design institute provide a table of safety valve parameters; they know the regulations better
The operating temperature is 200 degrees; the PTFE lining cannot withstand such high temperatures.
The operating temperature is 130°C, and the setting pressure of the safety valve is also high; therefore, the temperature at which the safety valve activates is relatively high as well
Please contact me if needed; Peng Liang from Nanjing Zhengyuan Group