GYY4-220/6 Tubular Electric HeaterUse: 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 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. Metal tube material: No. 10 steel 5. Maximum working temperature: SRY2, SRY3 is 300°C, SRY4 is 100°C 6. Working pressure of SRY2 and SRY4 is less than 2 kg/cm². 7. Fastener length of SRY3 is 25 mm. III. Usage, Maintenance and Precautions 1. In the dimension drawing, dimension "B" must be fully immersed in oil to avoid burning the element. The heated oil should be non-corrosive. 2. The working liquid level of SRY3 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 concentrated power from reducing element life. 4. If carbon deposits are found on the tube surface, they must be removed before reuse to avoid reduced efficiency or even burning of the element. 5. The element should be stored in a dry place. If the insulation resistance drops below 1 megohm due to long-term storage, dry it in an oven at about 200°C for several hours (or pass low voltage through the element for several hours) to restore insulation resistance. HRY4 Electric Heater Technical Parameters, Specifications and Dimensions (Figure 1) Model Voltage (V) Power (kW) Dimensions (mm) Weight (kg) A B (Immersion length in oil) C SRY4—220/4 220 4 1125 875 1070 1.37 SRY4—220/5 220 5 697 620 — 2.45 SRY4—220/6 220 6 807 730 — 2.70 SRY4—220/8 220 8 1007 930 — 3.05
Dimensions and Technical Data
GYY4 Standard electric heater is formed by welding bent tubular elements onto a flange. The element diameter is Φ12mm, and the tube material is No. 10 steel.
Technical Data
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