Polytetrafluoroethylene is a man-made compound that serves the flange sealing industry very well indeed. PTFE, to use the synthetic material’s abbreviated title, is a thermally stable material. Gaskets made from the fluoropolymer also feature a high level of chemical resistance. Hot and chemically caustic fluids simply slide past the ring gaskets without impacting the substance […]
Elastomers are clearly malleable but not flimsy. They’re compressible, not fragile. You see, just because an elastic seal can deform, that doesn’t mean it’s mechanically weak. It’s the same with chemical resistance, a feature elastomer gasket materials possess in abundance. Stretchy cross-linked molecular chains deform and recover while they repel the effects of corrosive chemical […]
Imagine the following unacceptable case study. An O-Ring is seated within an equally sized groove. What’s wrong with this picture? Well, the rubber won’t compress as it’s installed. Instead, the identically sized O-Ring and circular groove create a snug fit. An effective seal can never form. To create that seal, the cross-sectional width and depth […]
Extrusions are discharged through special die assemblies. The elastomers are loaded into extrusion machines, heated and forced at pressure, then they slide through the die section, where they’re shaped into a desired cross-sectional outline. Continuing outwards, like toothpaste from a tube, the die-profiled extrusions assume many functional shapes, including those that have edge trims. A […]
Full face gaskets are wide enough to cover an entire flange. That means the ring starts at the edge of the flange face, moves in towards the internal pipe diameter, and thus covers the whole seal surface. Securing bolts pass through the gasket, so there’ll be bolt holes included on the die-cut material. Talking of […]
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