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Fluoropolymers in Chemical

Fluoropolymers in Chemical
 
Applications of Everflon™ fluoropolymers in chemical processing:
 
Everflon Fluorolymers Co., Ltd.
◼ Sealing material for rotating and other equipment, such as gaskets, sealing rings (O-rings), rotary seals, shaft seals, flanges, used in practically all equipment responsible for the transfer of fluids in a chemical plant. This includes pipes/tubes, connectors, pumps (including plunger and diaphragm pumps), valves, dosing pumps and suction lances, (screw and piston) compressors and other machine tools, and mixers. Seals for cryogenic use were also mentioned in the downstream user survey. A broad range of FP has been reported to be used, mainly PTFE, FKM, FFKM and PVDF, while PFA, FEP, PCTFE, ETFE were also mentioned by respondents.
 

 

 


◼ Lining of piping, rection vessels, storage tanks and other fluid-handling components (e.g., flowmeters, sampling tubes) which would come in repeated and prolonged contact with aggressive chemicals. Use of fluoropolymers prevents corrosion and leakage and extends the lifetime of equipment. For example, unlined metal piping carrying acidic fluids can only last a couple of months, while a fluoropolymer lining can extend that lifetime to more than 20 years.

 


Everflon Fluorolymers Co., Ltd.

◼ Specific applications mentioned include a positive liquid tight seal preventing lubricant leakage and the ingress of contaminants in both static and dynamic conditions on horizontal and vertical equipment.

 
◼ In electronic equipment used in chemical processes. The electronic equipment can provide remote sensing (e.g., for pH, chlorine, ozone, fluorine concentrations, temperature) and control / automation functions.
Everflon Fluorolymers Co., Ltd.

 


Everflon Fluorolymers Co., Ltd.
◼ Primary insulation and jacket of electrical wiring and cables used in sensor systems, for general power supply and in applications with very high ambient temperatures, such as steel mills, but also for cryogenic applications, such as LNG storage and transport. The thermal stability and excellent chemical compatibility of fluoropolymers used (PTFE, FP, FEP, ETFE, PFA, PVDF, FKM) ensures longevity of the equipment and reduces the need for maintenance and the risk of failures.
 

Everflon Fluorolymers Co., Ltd.◼ Non-adhesive PTFE based thread seal tapes for sealing of threaded pipes (metal, plastic, composites).

 

◼ Masterbatches, thermoplastics and elastomer, grease and oil additives, mould release

 


◼ Ion-exchange membranes (made out of fluorinated ionomers, often reinforced by PTFE fibres) and diaphragm technologies (mainly PTFE) are used in plants carrying out electrolysis.
 
◼ PVDF membranes are also used for industrial water and wastewater filtration.
Everflon Fluorolymers Co., Ltd.

 

 

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