FINNED TUBE

№n/n	Ref	Designation	Value
1	D	Bare tube diameter by GOST 8732-78, mm	89…315
2	S	Wall thickness, mm	1.8…8
3	H	Ribbon width, mm	6…15
4	δ	Ribbon thickness, mm	0.8…1,5
5	T	Fin pitch, mm	from 5
6	L	Maximal tube length, mm	900

Finned tube general drawing.

GENERALDATA

Finned tube applied in heat exchangers (heat utilizers, heaters, calorifers, economizers, air cooling condensers, product coils) in energetics, oil treating, chemical and other industries.

features

Finning is conducted by high frequency continuous root zone welding between ribbon and tube. In result the object receives list of following features:

- heat transfer coefficient increases up to 50 %;

- heating surface service life increases in 2 – 3 times;

- general reduction of heat exchanger weight by 30…40 %;

- reduction of pipe quantity by 50% in comparison with bare tube models.

Finned tube material match

№ п/п	Steel grade
	Tubes	Ribbons
1	10	0.8
2	20	0.8 kp
3	09G2S	0.8 ps
4	10G2	10
5	12H1MF	10 kp
7	12H1MF, 12MH, 15HM	12H1MF
8	08H18N10	08H18N10T
9	08H18N10Т	08H18N10
10	08H18N12T, 12H18N12T, 12H18N10T	08H18N10T

FINNED TUBE

Catalog