Diaphragm pump
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A diaphragm pump is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm
Cross-section sketch of diaphragm fuel pump
Air-operated double diaphragm pump
Double acting membrane pump on oil tanker deck
Polytetrafluoroethylene
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Polytetrafluoroethylene is a synthetic fluoropolymer of tetrafluoroethylene, and has numerous applications because it is heat resistant and chemically inert. The commonly known brand name of PTFE-base
Diaphragm pump
…pump (also known as a Membrane pump) is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm (check valve, butterfly valves, flap valves, or any other form of shut-off valves) to…
Advertisement of the Happy Pan, a Teflon-coated pan from the 1960s
Advertisement for Zepel, the trade name used to market Teflon as a fabric treatment
PTFE thermal cover showing impact craters, from NASA's Ultra Heavy Cosmic Ray Experiment (UHCRE) on the Long Duration Exposure Facility (LDEF)
PTFE is often used to coat non-stick pans as it is hydrophobic and possesses fairly high heat resistance.