Tank heater ERH 800 RF / 400 RF

The series 800 RF heating inserts feature design characteristics which make these units unrivalled on the market. The high variability of the design allows a perfect adaption to any process conditions. There is no better solution to heat up tanks.


The series 800 RF heaters consist of flange with welded-in-protection tubes. The heating elements are positioned in the protection tubes and are not in direct contact with the medium. They can be exchanged without draining and opening the tank The design of the RF heating elements ensure excellent thermal reaction time and contraol accuracy.

Heat transfer

Due to the perfect hydraulic flow around the heating elements, the medium is gently heated to the specified temperature. The surface load (W/cm²) can be precisely adapted to the medium characteristics. Recommended surface loads:

0,8 W/cm²

lube oil andother temperature-critical fluids

1,1 W/cm²

high viscosity heavy fuel oils

1,4 W/cm²

marine diesel fuels, light diesel fuels

ELWA Serie ERH800 RF

Features & options

All heaters are equipped with built in safety temperature limiters (STB). Optional additional safety devices: flow switch, temperature limiter (self reset), PT-100 sensors and safety valves.

Insertion vessel Type 400: Flanges according DIN EN 1092-1/11B1/DN15-DN250/PN16
The position of the connection can be adapted on request.








others on request

Heavy duty industrial painting with 2K structured PUR paint.

Overview table

customised units available on request!

Download datasheet

Tank heater ERH 800 RF