Thermotech Industries (india) Pvt. Ltd.

Rabale, Navi Mumbai, Maharashtra

These types of fins are semi-crimped and wrapped under tension around the outside of the base tube. Fins are either tack welded or brazed to the base tube at each end of the tube. These finned tubes can be further HOT DIPPED GALVANISED for surface protection where as the deposition of Zinc also adds up to the efficiency of finned tubes.

Maximum Operating Temperature-250 0 C:

a)Base Tube Diameter: 5/8 to 3 (15.8 mm to 76.2 mm)Tube Material: Carbon Steel / Stainless Steel / Copper / Cupro-Nickel

b)Fin Material: Carbon Steel / Stainless Steel / Copper / Aluminium / BrassFin Height: to (6.4 mm to 20 mm)
Fin Pitch: 3fins/inch to 11 fins/ inch (118 fins/meter to 433 fins/meter)

ApplicationCommercial Application for Air Heating OR Air Cooling up to 1300 C to 1500 C using Steam / Thermic Fluid / Hot Water as Heating Media OR Water as Cooling Media

The strip is tension wound into a machined groove over the base tube material. This ensures maximum heat transfer at high temperature.

Maximum Operating Temperature-450 C:

a)Fin Material :Aluminum / Carbon Steel
Fin Height :1/2 to 5/8 (12.7 mm to 15.87 mm)Fin Pitch 8fins/inch to 11 fins/ inch (316 fins/meter to 433 fins/meter)Continuous Spiral G Type Fins, G Type Finned Tubes Click On Zoom

b)Base Tube Diameter :3/4 to 2 (19.05 mm to 50.8 mm)
Tube Material :Carbon Steel / Stainless Steel

ApplicationMore specifically used in Air Cooled Exchangers OR Condensers

The formation of L base of the strip under tension gives optimum contact of the L base on the base to improve the heat transfer efficiency. Whereas the L base also gives considerable corrosion protection to the base tube

Maximum Operating Temperature - 300 C:

a) Fin Material: Carbon Steel / Copper
b) Tube Material: Carbon Steel / Stainless Steel / Copper

Single tube or Double tube rectangular fins are also manufactured as per customers requirements. Due to rectangular shape it offers are large surface area compared to the Spiral Finned tubes

Application
Due to larger surface area available, these finned tubes are used mostly in Air Heating application to reduce the overall size of the equipment.

Maximum Operating Temperature - 300 C:

a) Fin Material: Carbon Steel / Stainless Steel / Aluminium / Copper
Fin Size70mm x 40mm / 76mm x 38mm
b) Tube Material: Carbon Steel / Stainless Steel / Copper
Tube Size :5/8 (15.87mm 19.05mm)