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Boiler tubes

Heat exchanger tubes

Welded pipes

L, LL, KLM finned tubes (fin tubes)

high frequency welded (serrated) finned tubes (fin tubes)

(serrated) extruded finned tubes

hot dipped galvanized oval (elliptical) finned tubes, rectangular fin tubes

condenser fin flat tubes

H / double H finned tubes (fin tubes)

Studded Pipes

Laser welded finned tubes (fin tubes)

G embedded finned tubes (fin tubes)

inner finned tubes (fin tubes)

longitudinal finned tubes (fin tubes)

seamless finned tubes with two longitudinal opposite fins

casting alloy tubes

Tube finning machine

Aluminum plates, strips,foils

Aluminum welding wire rod

Aluminum tubes, profile

Economizer for Boiler

air-cooled heat exchanger (air cooler)

material

standard & specification

 
inner finned tubes

inner fin tube has high efficient extends surface in heat exchanger tube, improving heat exchange property by strengthening heat transfer in the tube, Inner fin is corrugated and the coefficient of heat transfer and can be increased 7~8 times comparing with bare pipe. The inner finned tubes is made of tube and fins by nickel brazed welding with 100% welding rate.
inner finned tubes is able to improve more than 7 times in heat transfer area, also with good shock resistance and high strength, while its volume is much smaller which make cost much down in produtions of heat exchanger and usage by big down in circle water.inner finned tubes

Out tube OD 28mm

Inner tube OD 14mm

fin thickness 0.2mm

inner finned tubes

 

 

 

 

inner-fin-tube

 
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