On the selection of processing techniques for fluorine-lined equipment
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Regarding the choice of materials ETFE and PTFE for wash towers and sulfuric acid drying towers: the medium is chloromethane, containing trace amounts of HCl and dimethyl ether. Temperature: 30–50°C; gauge pressure: 0.4 MPa. Tower diameter: 600 mm. F40 is a material that is produced through thermal spraying in a monolithic manner, with a thickness of not less than 3 mm. Does anyone have any experience using this material? Is F4 or F40 the better choice?
Firstly, if manufactured using the ETFE hot roll-coating process, the thickness range for roll coating can be between 2mm and 5mm, rather than 3mm as you mentioned. Secondly, regarding the process of using PTFE or ETFE for corrosion protection as mentioned, I believe that both materials can be used under these temperature and operating conditions; however, it is first necessary to understand the structure of the equipment before making a choice regarding the material to be used.
Firstly, if manufactured using the ETFE hot roll-coating process, the thickness range for roll coating can be between 2mm and 5mm, rather than 3mm as you mentioned. Secondly, regarding the process of using PTFE or ETFE for corrosion protection as mentioned, I believe that both materials can be used under these temperature and operating conditions; however, it is first necessary to understand the structure of the equipment before making a choice regarding the material to be used.
As long as it is not a special structure, either ETFE or PTFE can be used; the only difference is the price. QQ635098707: Both materials are available for selection; the only difference is the price