SRJ Tubular Electric Heater Dari Electric recommends SRJ type tubular electric heating element is used for heating alkali solutions 2. Specifications and Technical Data: 1. Specifications and dimensions:See Table1-2 and Figure1-3 2. Working voltage tolerance: not greater than 1.1 times its rated value, the shell should be effectively grounded 3. Working environment: relative humidity not greater than 95%, no explosive or corrosive gases 4. ...