Cartridge tubular heater:

1. belongs to high-precision electric heating tube;

2. It has a simple structure, high thermal efficiency, good mechanical strength, safe, reliable, sensitive advantages;

3. It is available for 2 to 5 years in a suitable situation, and is widely used for heating water, oil , nitrite,  acid and lower melting temperature metals;

4. It can be heated by water in the vessels and pressure vessels.

5.can make explosion-proof function.