FIELD: electric heaters used for off-line steam heating. SUBSTANCE: electric heater has hermetically sealed case 1 with inlet and outlet pipes 10 and 4, respectively, accommodating electrodes 2, liquid regulator valve 5 with actuator 6, compensating tank 9 holding backup liquid used for automatic power control without special (such as electromechanical) regulators as well as for ensuring desired head of heat-carrying agent when it is supplied to heated system without any pumping appliances. EFFECT: improved operating reliability. 1 dwg
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Authors
Dates
1998-07-20—Published
1996-11-01—Filed