Fluoropolymeric heat shrinkable tubes

Type ÒÒÊ (TU 2247-532-00203521-97 with Alt. 1, 2 and 3)
Type ÎÒÊ (TU 2247-564-00203521-2001 with Alt. 1)

ÒÒÊ and ÎÒÊ tubes are designated for insulation and additional mechanical protection of outlet wires and insulation of winding wires connection points of submerged electrical equipment; for capsulation of probe cables of geophysical well instrumentation operating in contact to edge waters, gases, oil; in radio electronic and other devices; for installation of board electrical networks in transportation facilities etc.

The tubes are resistant to hydrocarbon oils, fuels, hydraulic fluids, surface-active and many other matters at temperature from -50°Ñ up to +200°Ñ, are long-lived at maintenance in atmospheric conditions.

The shrinkage temperatures (TTK and OTK) from +175°Ñ up to +215°Ñ.

Available products:

Internal diameter, mm				Wall thickness after shrinkage, mm
Nominal		Tolerance		Nominal	Tolerance
as delivered	after heating (shrinkage)	as delivered	after heating (shrinkage)	Nominal	Tolerance
2,0	1,2	±0,2		0,70	±0,15
2,7	1,6			0,70
4,5	2,5			0,70
6,0	3,0			0,70
8,1	4,5			0,70
8,8	5,3			0,70
10,0	6,0			0,70
11,4	6,8			0,70
12,0	7,2			0,70
13,8	8,3	±0,3		0,80	±0,20
15,0	9,0	±0,3		0,80	±0,20
19,0	11,4	±0,4		0,90	±0,25
30,0	15,0	±2,0	±0,5	1,2	±0,5
40,0	20,0	±3,0	±0,6	1,5	±0,6

Color of tubes from gray up to black. Other colors and dimensions are possible.

Main properties of tubes

Appearance and values	Stanrad grades
	Extra grade		First grade
	TTK	OTK	TTK	OTK
1. Appearance	The pubes mast be of gray up to black color with smooth surface
2. Lenght change after shrinkage, %, not over	15	10	20	15
3. Tensile strength, Mpa, not less than	9,1	7,4	6,0	6,0
4. Relative elongation at break, %, not less than	255	200	150	150
5. Specific volume resistance, Ohm m, not less than	1×10¹¹	5×10¹¹	1×10¹¹	5×10¹¹
6. Dielectric strength, MV/m, not less than: – average – minimum	4,0 3,0	n.n. 15,0	4,0 3,0	n.n. 15,0