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(last edited July 19, 2005) Front Page | Recent Changes | Title Index | User Preferences | Random Page | HelpUsed to discharge compressed air from reservoirs. As air is expelled under high pressure, these cocks are normally provided with baffles to reduce the pressure as the air escapes. Note that brake reservoirs are not usually provided with drain cocks as they are part of a safety system although they usually have a sealed, screwed plug for maintenance purposes. Drain cocks are also useful for draining water which collects in reservoirs as a result of condensation.
