Product Details

SRY2, SRY3 Tubular Electric Heaters
SRY2, SRY3 Tubular Electric Heaters are used for heating oil in open or closed oil tanks. SRY4 Tubular Electric Heater is used for heating flowing or circulating oil.
II. Specifications and Technical Data
1. Specifications and Dimensions: See table and figure

Note: The mounting hole for SRY2 and SRY4 types is ?72 mm
2. Working voltage tolerance: Not greater than 1.1 times the rated value, the shell should 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, SRY3 are 300°C, SRY4 is 100°C.
6. Working pressure for SRY2 and SRY4 types is less than 2 kg/cm².
7. The length of the fastener for SRY3 type is 25 mm.
HRY, SRY Tubular Electric Heaters Usage, Maintenance and Precautions
1. Dimension "B" in the outline drawing must be fully immersed in oil to avoid burning the element. The heated oil should be non-corrosive.
2. For SRY3 type, the working liquid level must be below the fastener and above the dimension line "B".
3. When melting solid oils such as asphalt and paraffin, reduce the voltage first, then increase to rated voltage after melting to prevent heat concentration and reduce element life.
4. If carbon deposits are found on the tube surface, they must be removed before use to avoid reduced efficiency or even burning of the element.
5. Elements should be stored in a dry place. If the insulation resistance drops below 1 megohm due to long-term storage, dry in an oven at about 200°C for several hours (or apply low voltage for several hours) to restore insulation resistance.