HRY5 Sheathed Electric Heater Product Features:
1. It adopts the form of multiple U-shaped electric heating elements paired with multiple specially shaped sheaths, featuring large heat dissipation area, fast heat transfer, long service life, and convenient replacement and maintenance.
2. Due to the use of multiple U-shaped electric heating elements with multiple specially shaped sheaths, if a certain heating element is damaged, only that damaged element needs to be replaced without replacing the entire heating source, greatly reducing the user's subsequent investment.
3. The surface load design can be determined according to customer requirements. The standard surface load design is 0.7 W/cm².
4. The sheathed tubular electric heater can be optionally equipped with liquid expansion thermostats, manual reset, AC contactors, and other electrical equipment. If the heater needs temperature adjustment function, only the temperature control device needs to be installed. Customers should add the letter "T" after the model when ordering. If automatic constant temperature function is required, the heater should be equipped with a thermostat and contactor, and the letter "TH" should be added after the model when ordering.
5. Working voltage tolerance: not greater than 1.1 times its rated value. The shell should be effectively grounded.
6. Working environment: relative humidity not greater than 95%, no explosive, flammable, or corrosive gases.
7. Heater material: carbon steel or stainless steel.
8. Maximum working temperature: 200°C.
9. Working pressure: less than 0.6 MPa.
10. Specifications and dimensions: see the table and attached figure on the next page.
HRY5 Sheathed Electric Heater Main Technical Parameters:
Rated voltage: Single phase 220V Three phase 380V
Surface heating power: Type 4,5 ≤1.8W/cm² Type 6,7 ≤0.7W/cm²
Heat transfer temperature: ≤300°C
Working medium: Mineral oil
Working pressure: ≤0.8 MPa
Heater mounting hole: ≥φ114mm
Note: When selecting, the actual conditions of the heating medium and the installation dimensions of the equipment should be considered. The surface heating power should be ≤0.7W/cm² as much as possible. When wiring, suitable high-temperature wires should be used to connect the power distribution control box to the electric heater.
Usage, Maintenance, and Precautions:
1. Dimension "B" in the outline drawing must be fully immersed in the oil to avoid burning the components.
2. The heated medium should be non-corrosive.
3. When melting solid oils such as asphalt and paraffin, use a reduced voltage first, then increase to the rated voltage after melting to prevent excessive heat concentration and reduce the service life of the components.
4. If carbon deposits are found on the surface of the heating tube, they must be completely removed before reuse to avoid reducing efficiency or even burning the components.
5. The components should be stored in a dry place. If the insulation resistance drops below 1 megohm after long-term storage, the heating core can be removed and dried in an oven at about 200°C for several hours (or the components can be energized at low voltage for several hours) to restore the insulation resistance.
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