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  • PTFE Vs. TFE | Eng-Tips
    PTFE is the chemical description for polytetrafluoroethylene, or better known as DuPont's Teflon Many other suppliers also manufacture PTFE grannular and free flow resins TFE is the chemical name for tetrafluoroethylene, which is a colorless and taseless gas, extremely toxic and ultimately deadly
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    Delrin AF (15% PTFE filled delrin) is often used (tapped)to make nuts for precision metal leadscrews on small mills and lathes Would it not be best to simply use pure (teflon)PTFE? What about UHMWPE? Its apparently has similar properties to teflon but less resistant to abrasion The goal is
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    PTFE is pure teflon seating It is good but has limited strength and thus is suitable for lower pressure valves Immune to most environments RTFE is reinforced (typically glass) seating It is better and will be suitable to valves with higher pressures but may still be limiting in Class 900 and 1500 valves which might not be able to have full flange rating Again, immune to most environments
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    Does anyone have a recommendation for a low friction material for use in a gravity fed cardboard box delivery system? Delin and Teflon come to mind, but there are probably other materials I envision 1 2" sheets structurally supported from below, and cardboard boxes sliding down an
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    Teresa gave me the Farmer's Market bug! :) I am a novice at selling my baked goods -I need a little help I've made and sold breads, cookies and rolls we like as well as a couple of recipes that caught my eye Would you share baked goods recipes of all sorts that you would be eager to buy at a comm





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