HRY2/2KW 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.

HRY2/2KW Sheathed Electric Heater Features:

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 flange. The sheath isolates the heating core from the heated oil. When replacing the electric heater, it is not necessary to drain the oil from the tank; only the heating core needs to be pulled out and replaced with a new one, making maintenance convenient. The electric heater has a large contact area with the heated oil, low surface thermal 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.
HRY2/2KW Sheathed Electric Heater Technical Parameters

Rated Voltage      Single-phase 220V, Three-phase 380V
Surface Heating Power  ≤3w/cm2    
Operating Temperature      ≤300℃
Working Medium      Mineral Oil
Working Pressure      ≤0.8Mpa

 

Marking Example: Model HRY2, voltage 220V, power 3KW electric heater, marked as: Electric Heater HRY2-220/3.

HRY2/2KW Sheathed Electric Heater Structure:

The heating tube is made by inserting electric heating wire into an outer tube (carbon steel tube, titanium tube, stainless steel tube, copper tube), filling the gaps with magnesium oxide powder that has good thermal conductivity and insulation, then shrinking the tube, and after heat treatment (some tubes do not require it), processing it into various shapes required by the user. It has simple structure, high thermal efficiency, good mechanical strength, and good adaptability to harsh environments. It can be used for heating various liquids and acids, alkalis, and salts, and is also suitable for heating and melting low melting point metals.