Since there is chlorine and petroleum ether inside the pipeline, can stainless steel valves be used?
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I received a order; the client needs to purchase a batch of stainless steel valves for use in environments with chlorine, petroleum ether, and temperatures of 150°. Since I specialize in pumps, I’m not very familiar with valves. I would like to ask the experts: is it suitable to use stainless steel valves in this situation? Which type of material for valves can meet quality requirements while being cost-effective? Thank you
Um, what is the operating pressure for this valve? Is 150°C the actual operating temperature, or is it the temperature at which the valve can still function properly? If the pressure is not high and the temperature resistance is 150°C (with an actual operating temperature of around 120°C), fluorinated carbon steel valves can be used. The specific type of valve to choose can be determined based on the operational requirements, as this represents the most economical option.
Valve with a pressure of 16 kilograms, actual operating temperature: 120
Are chlorine and petroleum ether mixed together, or do they go through separate pipelines? Chlorine and petroleum ether have very different physicochemical properties, and they also react with each other; the products of this reaction possess physicochemical characteristics that are different from those of the two original substances. The OP’s question is very unclear.
In that case, a carbon steel body lined with fluorine-coating material can be chosen; if aesthetics are important and the valve body needs to be rust-resistant, then a 304 steel body lined with fluorine-coating material can be selected
If there is chlorine present, stainless steel valves are not suitable
1. Chloride ions cause severe corrosion of stainless steel, so it cannot be used. 2. Carbon steel valves can be used, or valves made of carbon steel lined with PTFE
It’s better to use carbon steel lined with PTFE; PTFE can withstand temperatures up to 149°C and pressures of up to 19 bar.
Information such as pressure is also required; thorough consideration must be given to the safety aspects when purchasing valves – no carelessness is allowed