Hole seal for an enclosure

摘要

Hole seals for enclosures that are located in a hazardous locations where flammable gases or vapors may exist and methods for installing hole seals. In an embodiment, a hole seal includes a first retaining plate, a gasket, and a second retaining plate. The hole seal further includes a fastener to tighten the first retaining plate and gasket against the second retaining plate.

主权项

1. A seal for an enclosure for use in a hazardous environment, the seal comprising:
a first retaining plate having at least one stud and a flange; a second retaining plate having at least one first opening; a compressible gasket assembly positioned between the first retaining plate and the second retaining plate comprising:
at least one second openingan outer edge portion and a depression formed along the outer edge portion, the depression covering the flange; at least one fastener having at least one third opening, wherein the at least one fastener can tighten the first retaining plate and gasket against the second retaining plate; and at least one passageway extending in alignment through the second retaining plate, the compressible gasket, and the at least one fastener.