News Details

Technical Parameters: 

Features:

1. The sheathed tubular electric heater consists of a heating core and a protective sheath. The heating core uses tubular electric heating elements as the heat source, and the protective sheath is made of thin stainless steel. It has a large heat dissipation area and fast heat transfer. The terminal device part is divided into ordinary type (using iron-made stretched cup-shaped housing) and special type (using bolted explosion-proof device housing seal). The special type meets the requirements of explosion-proof mark dIICT4 and protection level IP65 series standards.

2. The sheathed tubular electric heater is connected to the oil tank container body by flange. The sheath isolates the heating core from the heated oil. When repairing the electric heater, it is not necessary to drain the oil in the tank. Only the heating core needs to be pulled out and replaced with a new one, making maintenance convenient. 3. When designing, the contact area between the sheath and the heated oil should be considered to prevent local carbonization of the oil due to excessive heating temperature. This type of heater is only suitable for heating heat transfer oil or oil media with good heat transfer effect.

Technical Parameters:

2.1 Rated voltage: Three-phase 690V

2.2 Rated power: 800W

2.3 Current frequency: 60HZ

2.4 Surface heating power: 1.2 W/cm2

2.5 Maximum operating temperature: 300℃

2.6 Working pressure: ≤0.8Mpa

2.7 Protection level: IP65

Dear Customer:
 Thank you for your interest in our products. In addition to this product introduction, our company also has introductions for variable frequency series resonance withstand voltage test devices, transformer oil withstand voltage testers, transformer volt-ampere characteristic testers, power frequency withstand voltage test devices, induced withstand voltage test devices, relay protection testers, transformer DC resistance testers, loop resistance testers, ground resistance testers, high-voltage dielectric loss testers, circuit breaker characteristic testers, high-voltage phase testers, etc. If you are interested in our products, please consult us. Thank you!

Process:

The heating tube is made by inserting electric heating wires 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. After heat treatment (some tubes do not require it), it is processed into various shapes required by the user. It has the characteristics of simple structure, high thermal efficiency, good mechanical strength, and good adaptability to harsh environments. It can be used for heating various liquids and acid-base salts, and is also suitable for melting low-melting-point metals.
Application scope of tubular heaters: Suitable for heating air, oil, water, chemical media, hot pressing molds, melting salts, alkalis, and low-melting-point alloys. It has the characteristics of high thermal efficiency, long service life, high mechanical strength, easy installation, safety and reliability.
Classification of tubular heaters by shape: According to different shapes, heating tubes can be divided into: straight single-end heating tubes, straight double-end heating tubes, U-shaped heating tubes, W-shaped heating tubes, special-shaped heating tubes, and spiral heating tubes.

SRY6-3/380V-3KW Sheathed Electric Heater Element         SRY6-3/380V-3KW Sheathed Electric Heater Element