Twist flat-tube is one kind of enhanced heat transfer tube that was firstly presented by Swiss Allares Company, and then improved by the United States Brown company. 

Advantages of heat exchanger with twist flat tube:

- Lower pressure drop No baffle plate, lower pressure drop in the shell pass

- Higher heat transfer efficiency. It can increase the turbulent intensity, make the shell flow velocity and the direction change regularly, and enhance the mixture in lengthways

- Less deposit No blind zone in the shell

Specification of twist flat-tube heat exchanger

- Fig: Basic dimension parameter figure of twist flat-tube

- Table: Basic parameter table of twist flat-tube

- Spec. Lead St(mm) Long axis of twist flat-tube an (mm) Length of two ends bare tube(mm)

Φ14x1.5 150,200,250,300 16.0   Arbitrary length

Φ16x1.5 150,200,250,300 18.5 Arbitrary length

Φ19x1.5 150,200,250,300 21.0 Arbitrary length

Φ25x1.5 200,250,300,350 29.0 Arbitrary length

Φ32x2.5 200,250,300,350 38.0 Arbitrary length