Heating tube and heating rod
Yangzhou Dary Electric Co., Ltd. is a high-tech enterprise dedicated to the R&D, production, and sales of HRY3 type sheathed electric heaters, high-voltage test equipment, and instrumentation. The company has a solid technical foundation and has passed the ISO9001 quality system certification. It has accumulated rich project experience in multiple core technologies such as product structure, software and hardware, and electrical control, pleasing users with innovative designs and high-quality products.
Applications of HRY3 type sheathed electric heater:
HRY type sheathed tubular electric heater is used for heating hydraulic oil and lubricating oil in hydraulic and lubrication devices, and can also be used for heating non-corrosive gases and liquids.

Features of HRY3 -380/2 sheathed electric heater:
The electric heater consists of a heating core and a sheath. The heating core uses a metal tubular electric heating element as the heat source, and the sheath is made of cold-drawn seamless steel pipe or stainless steel pipe.
The electric heater is connected to the oil tank body by flanges. The sheath isolates the heating core from the heated oil. When replacing the electric heater, there is no need to drain the oil from the tank; only the heating core needs to be extracted and replaced with a new one, making maintenance convenient.
The electric heater has a large contact area with the heated oil, low surface heat power, no carbon deposition, and the oil will not carbonize due to local high temperature. It has a long service life and is safe and reliable.
Main technical parameters of HRY3 type sheathed electric heater
Rated voltage      Single phase 220V, three phase 380V
Surface heating power  ≤3w/cm²    
Operating temperature      ≤300℃
Working medium      Mineral oil