OEM Factory Fin Tube Types KL Type Knurled Tube with Aluminum Fin



Spiral G L LL KL Fin Tube

Tube Material:Carbon Steel Tube,Stainless Steel Tube,Alloy Tube

Fin Material: Aluminum Strip,Copper Strip

Tube OD:19-51mm

Tube Thk:1.65-3.0mm

Fin Thk:0.3-0.5mm

Fin Pitch:2.0-5.0mm

Fin Height:10-16mm

KL type knurled finned tubes are knurled on the outside of the base tube, and after winding the fins, they are rolled twice at the root of the L type aluminum fins to enhance the contact of the tube sheets, which results in an increase in contact area of about 50%, low contact thermal resistance, high heat transfer performance, and the ability to withstand repeated hot and cold cycles without loosening.

For this reason, the KL knurled finned tube type ensures better heat transfer characteristics than under L and LL fins. Maximum operating temperature: 250°C

Steel shop radiators are mainly composed of KL type knurled tubes and frames. The tubes are usually made of twisted, composite, extruded and knurled types, which are staggered and combined with the frames in a welded manner.

After the combination of the winding tube and the frame, the tube radiator will usually choose the way of bending or wire fastening to connect them to form a set of winding tube radiator, to provide a coherent channel for the heat transfer medium inside the tube.

KL-type knurled winding tube is usually made of steel and steel-aluminum composite system is more common.

Winding tube radiator in the arrangement, usually the radiator medium inlet set in the upper end, the outlet set in the lower end, so that the internal medium from the upper end of the inflow cycle, the temperature drops will be through the lower end of the radiator outlet back to the radiator to continue to heat the radiator, recycling.