Description
TH tank heaters are intended primarily for application in hydraulic control systems for machine tools, presses, hydraulic elevators, servo systems, etc. where overnight conditions or periods of non-operation cause the temperature of the hydraulic fluid to fall below desirable levels.
The heater is designed to maintain up to approximately 500 litres (130 US gals) of oil in an unheated room at a temperature of +20 °C to +25 °C (68 °F to 77 °F).
Through the large heat dissipation area of the housing, the heaters surface temperature remains under +50 °C (120 °F) and thereby avoids oxidation or premature aging of the oil. The built-in thermostat switches the heating element ON at an oil temperature of approximately +20 °C (68 °F) and OFF again when the oil temperature has risen to approximately +25 °C (77 °F).
Should the heater in an unsubmerged state be exposed to an ambient temperature of under 20 °C (68 °F), it will switch ON for a short period before switching OFF again as heat is conducted through the housing to the thermostat. Under this condition, the hottest surface temperature of the heater would not exceed 90 °C (190 °F).