Introduction 

We can manufacture high frequency welding spiral fin pipe heater exchanger which are widely applied in electricity, petroleum, chemicals, and pharmacy industry. For example, economizer, air preheater, steam air heater, gas heater, liquid heater, steam heater, cooler, and flue gas heater.

Technical specification 

High-frequency welded helical finned tube is a highly efficient heat transfer component, it consists of steel fins wrapped helically around steel pipe, and continuously welded using the high frequency electric current welding process so as to reduce the flow resistance and the metal consumpition, improve the efficiency of heat transfer equipment and operating reliability.

The heat transfer energy is more than 6-10times higher than the bare tubes.

Tube material: seamless steel, carbon steel

Fin Material: Carbon steel; stainless steel

Description : 

High frequency welded spiral fin tubes are made by high frequency welding crabon steel or ND steel belt  to the  carbon steel or ND steel . tubes. ND steel spiral steel is better than cabon steel spiral tubes in terms of corrosion resistance. So ND steel spiral tubes are maind applied for heat exchanger under environment expposed to corrosion. 

Application case:

The high frequency welded spiral fin tube economzier is a newly type heat transfer equipment, consisting of spiral

fin tubes to overcome the serious abrasion and short service time.

Structure: consisted of a series of spiral finned tubes, the headers of inlet and outlet, bend, frame and other auxiliaries

Structure arrangement: in line/staggered arrangement