Polytetrafluoroethylene, which is also known by abbreviation aficionados as PTFE, is a versatile gasket material. It’s a fluoroelastomer, a synthetic compound that’s available in many forms. On switching over to ePTFE (Expanded PTFE), the carbon-fluorine compound gains new mechanical properties. Classed as a popular sealing material because of a talent for resisting chemical attacks, ePTFE […]
Once upon a time, so the story goes, asbestos gaskets were commonly in-use because they provided exceptional thermal strength. The fibrous, silicate-based mineral obviously still exhibits superior heat-resistance fortitude, but asbestos is now recognized as an environmentally hazardous material, too. Known for some time now, the tiny fibres cause life-threatening lung diseases. No matter, a […]
Aggressive chemicals can “burn” though ill-suited gasketing materials. Solvents, strong acids, caustic alkalis, all of these substances are capable of causing corrosive fallout. As an unsuitable seal material erodes, the corrosive chemicals then leak and pool. Depending on the nature of this caustic chemical leak, it could then vapourize and take flight. Clearly, on contemplating […]
Past posts have highlighted flange face problems and incautiously selected gasket materials. And rightfully so, for such errors can cause and all sorts of sealing issues. However, there’s also the question of installation correctitude, which requires a whole books-worth of procedural smarts to ensure flange-to-flange jointing integrity. From bolt ring tightening patterns to gasket selection […]
Harsh climates can damage sensitive machinery. Following on from that claim, extreme weather conditions cause damage to tough-as-nails industrial materials. And, since pipelines travel across vast open spaces, often while attacked by the most severe elemental forces, then they’re an easy target for this effect. Hot or cold, wet or dry, climate extremes can compromise […]
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