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Due to the ultra-high chemical resistance of the Teflon [R] PTFE liners to nearly all media used in the food, pharmaceutical and chemical industries, the potential applications for Elapharm [R] hose are virtually unlimited.
Among these lubricants, PTFE particles provide very low friction coefficient but show a low useful load-bearing capacity and should only be considered at low-speed wearing systems.
The increased stroke length of the new PTFE diaphragm provides flow, suction lift and efficiency comparable to rubber and Thermoplastic Elastomer CTPE) diaphragms.
Behind the Design: PTFE, FEP and PFA fluoropolymer tubing is known for its heat and chemical resistance as well as its non-stick properties.
The company decided to replace its PTFE seals with Kalrez Spectrum 6375 seals made of thermoset perfluoroelastomer, supplied by DuPont Dow Elastomers of Wilmington, Del.
Bag filters used for this purpose can also be made of glass fiber nonwovens, Tefaire, PPS felt, polyimid felt or PTFE felt.
When commercial applications demanded high performance substrates, certain disadvantages were associated with conventional PTFE substrates, such as their cost; typically the price ranged from eight- to 10-times the price of epoxy glass laminates (commonly called FR-4).
Sherwin Damdar, product manager - GYLON(R), said, 'The GYLON(R) material was the first-to-market low creep restructured PTFE and has been the industry standard for more than 50 years.
3]) and PTFE powders (DuPont, particle size: 7 [Angstrom]) were used as initial target materials.
In the plating process, the diamond particles behave similarly to positively charged metal ions and together with the nickel and the PTFE material they co-deposit onto the component.
This new additive manufacturing technology is of particular importance for PTFE, which is usually machined by subtractive manufacturing methods," continued Zentis.
Filling machine valves on the line were previously fitted with dynamic PTFE O-ring seals, while the machine hoses were equipped with static seals, also of PTFE.
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