thermal flame safeguard

thermal flame safeguard

[′thər·məl ′flām ¦sāf‚gärd]
(mechanical engineering)
A thermocouple located in the pilot flame of a burner; if the pilot flame is extinguished, an elective circuit is interrupted and the fuel supply is shut off.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.