Toyo Densen Brings Out Middle-Diameter Aluminum Tube

Japanese pipework material maker, Toyo Densen, adds new size coated aluminum tube for air conditioner within this year. The firm sells thin diameter products and adds middle size pair coil, and brings out dedicated tool for aluminum tube when users are switching from copper tube to aluminum tube. The firm plans to increase production by over 10 times and market share to 15% in 2 years.

The firm produces tube products for air conditioner, and sells, electric cable, polymer pipe and tape. The firm mainly makes coated copper tube for air conditioner connection equipment. However, users are mulling conversion to aluminum tube from copper tube due to high copper price. The firm developed coated aluminum tube, CAT-PIPE, and started sales this year.

Aluminum tube has corrosion resistance, bendability by heat treatment. It is hard for dew condensation to be generated when heat conductivity of aluminum tube is lower than copper tube. Consequently, aluminum tube can reduce the thickness of lagging material. The firm innovated to prevent corrosion between brass clasp and aluminum tube by crutch tip.

Aluminum tube is made by aluminum alloy extruded tube. The firm imports the tube from Chinese major extrusion products maker, and plates it in Tenri factory, Nara.

Toyo Densen sells pair coil of aluminum tube for the size with 6.35 millimeters and 9.52 mm external diameter, 20 meters and 30 meters length. The firm plans to market it for the size with 12.7 millimeters and 15.88 millimeters external diameter and the firm brings out flaring tool and torque wrench for aluminum tube in autumn.

Coated aluminum tube price is over 10% lower than coated copper tube. The aluminum tube was adopted for over 20,000 temporary housings in disaster area after the major earthquake when coated copper tube didn’t be delivered in a short while.