SRY2 Tubular Electric Heater
| I. SRY2 Tubular Electric Heater Application SRY2 and SRY3 types are used for heating oil in open or closed oil tanks. SRY4 type is used for heating flowing or circulating oil. II. Specifications and Technical Data 1. Specifications and Dimensions: See Table and Figure 2
Note: The mounting hole for SRY2 and SRY4 types is Ø72 mm. 2. Working Voltage Tolerance: Not greater than 1.1 times the rated value. The shell must be effectively grounded. 3. Working Environment: Relative humidity not greater than 95%, no explosive or corrosive gases. 4. Metal Tube Material: No. 10 steel. 5. Maximum Working Temperature: SRY2 and SRY3: 300°C, SRY4: 100°C. 6. Working Pressure for SRY2 and SRY4: Less than 2 kg/cm². 7. Fastener Length for SRY3: 25 mm. III. Usage, Maintenance, and Precautions 1. Dimension "B" in the outline drawing must be fully immersed in oil to avoid damaging the element. The heated oil should be non-corrosive. 2. For SRY3, the working liquid level must be below the fastener and above the dimension line "B". 3. When melting solid oils such as asphalt or paraffin, reduce the voltage until melted, then increase to rated voltage to prevent heat concentration and reduce element life. 4. If carbon deposits appear on the tube surface, remove them before reuse to avoid reduced efficiency or element burnout. 5. Store elements in a dry place. If insulation resistance drops below 1 MΩ after long storage, dry in an oven at about 200°C for several hours (or apply low voltage for several hours) to restore insulation resistance. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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