(= neat stack) pile f in a neat pile soigneusement empilÃ©s â The clothes were folded and in a neat pile. Les vÃªtements Ã©taient pliÃ©s et soigneusement empilÃ©s. to put sth in a pile empiler qch. to be stacked in a pile Ãªtre empilÃ© â The dirty plates had been stacked in a pile on the table.
Types of gaskets. Non-Metallic gaskets are usually composite sheet materials are used with flat-face and raised-face flanges in low Pressure Class applications. Non-metallic gaskets are manufactured from arimid fiber, glass fiber, elastomer, TeflonÂ® (PTFE), graphite etc.. Full-face gasket types are suitable for use with flat-face flanges. Flat-ring gasket types are suitable for use with raised face flanges. ASME B16.21 covers types, sizes, materials, dimensions, dimensional tolerances, and markings for non-metallic flat gaskets.
The flanges attach to duct end and have integral mastic which allows the flange to seal itself to the duct. Corner pieces add rigidity to the flange, hold the ductwork together and provide a sealing surface for the gasket. The gasket serves as a seal between the flanges. The cleat insures even compression of the gasket along the length of the flange. Companion Angles (F) Companion Flange or Angles â Angle frames are riveted, bolted or welded to duct ends and are then bolted together with gaskets or caulking to prevent air leakage. Recommended for use where duct sections must be removed periodically. Angle iron flanges are standard mild steel.