Detector apparatus adaptably mountable about the external surface of steam pipes and condensate pipes, Ball Valvesand wherein the apparatus includes a curved temperature sensitive bi-metallic element fixedly mounted at one end and with the opposed end being free to flex. Water Pump Control ValvesA push arm is mounted at the free end of the bi-metallic element in engagement with a temperature indicating element for indicating a temperature either within or outside of a range of desired maximums and minimums, utilizing calibrated reference in the form of a rotatable dial. API CAST STEEL VALVESThe surface temperature of the steam or condensate pipe being monitored is determined. The apparatus is provided with mounting member or system capable of use in combination with cylindrical surfaces within a range of diameters. A typical steam trap is a pipe coupled automatic valve that permits condensed steam (condensate) to pass but which acts as a barrier to noncondensed steam. Thus, steam trap failure may occur with either the steam trap while in the open position, the closed, or partially open position. System efficiency is sacrificed upon the occurrence of failures in the steam trap or other steam consuming apparatus. In particular, a closed failure normally results where the steam trap mechanically fails or becomes clogged or plugged with dirt, scale or other residue, thus reducing heat transfer efficiency as well as the possible generation of carbonic acid, an acid which may cause corrosion in the steam system. An open failure, on the other hand, results in tremendous energy waste, undesired pressurization and an excessively high temperature in condensate systems with resultant inefficiency of the steam system. In any failure mode, the defective steam trap can be detected through the monitoring of the localized temperatures at certain predetermined locations during system operation. Such failures, therefore, can be detected by means of appropriate temperature sensing apparatus operative in the ranges of the steam system being monitored. In particular, failures are detectable by means of monitoring the temperature levels occurring adjacent the steam trap inlet and outlet during normal operation and wherein temperature changes are indicative of either a failing or already failed steam trap which is designed or adapted to operate at a unique, relatively constant temperature level.

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