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longitudinal fin tubes
Boiler tubes, heat exchanger tubes

Welded pipes

L, LL, KL finned tubes (finned tubes)

G embedded fin tubes (finned tubes)

(serrated) extruded finned tubes

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

Laser welded fin tubes (finned tubes)

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

condenser fin flat tubes

inner finned tubes (finned tubes)

Studded Pipes

H / double H fin tubes (finned tubes)

longitudinal fin tubes (finned tubes)

Tube finning machine

Aluminum plates, strips,foils

Aluminum welding wire rod

Aluminum tubes, profile

Economizer for Boiler

air-cooled heat exchanger (air cooler)

seamless fin tubes with two longitudinal opposite fins


standard & specification

longitudinal fin tubes
longitudinal fin tubes longitudinal fin, in the form of a U-shaped fin channel, is resistance welded along the tube's longitudinal axis. longitudinal fin tubes are produced by resistance welding fins in the longitudinal direction along the length of the tube. The fin strip is first formed into a U-shaped channel, such that each leg of the U will form a fin. The channels are cut to the appropriate length and then oriented along the length of the tubes (pipes) and resistance welded in place. The channels are welded in pairs Tube Sizes: ¾" O.D. to 12" NPS (12.75" O.D.) Fin Heights: .21" to 1 ½" Fin Thicknesses: 20 ga. (.035") to 18 ga. (.050") Material: Brass, Mild steel, stainless steel, and nickel alloys. longitudinal fin tubes



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