U-shaped longitudinal finned tube.
The u-shaped longitudinal finned tube is a new type of heat exchange product developed by our company according to the customers' self-development, and is composed of many types due to the different materials, fins height and fin structure. It is mainly used in petroleum, chemical industry, environmental protection, building materials and energy industry. The following table is a series of technical parameters of the longitudinal u-shaped fin tube produced by our company. Of course, we can customize the products of other sizes according to customers' requirements.
Longitudinal finned tube form.
1. Basic parameters of longitudinal fin tube.
Material Carbon steel, low alloy steel, stainless steel.
specifications mm 19×2, 25×2.5, 34×3.5, 48×4.5, 60×5, 76×6
Fin material Carbon steel, low alloy steel, stainless steel.
Fin height mm 6.5,8,10,12.5,16,19,25,32
Number of fin 16,24,32,40,48
The thickness of the fin mm 0.8,0.9,1.0,1.2
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.
The longitudinal I/L or U shape fins are welded onto the core plain tubes by resistance welding or welding with filler metal
The longitudinal finned tubes are wildely used in following fields:
1. Chemical- ,petrochemical-,oil-, and power indudtry;
2. Heat exchanges;
3. Fired heaters;
4. Gas coolers and heaters;
5. Tank heaters.
Base tube diameter 12mm-273mm
Base tube wall thickness 2.11mm-25.4mm
Fin quantity 1U-36U
Fin thickness 1.0mm-1.5mm
Fin height 5.0mm-25.0mm
Base tube material: Stainless steel, Carbon steel, Alloy, Nickel etc.
Fin material: Carbon steel, Stainless steel, Alloy etc.