RTERound tube expander connectors

Round tube expander connectors

Technopolymer

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Round tube expander connectors
Round tube expander connectors

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Catalogue
Description
B
h
h1
h2
s
External tube diameter
Internal tube diameter
Thickness
430301
RTE.20x1.0-M8
18
42
10
30
13
20
18
1
6
430303
RTE.20x1.5-M6
17
42
12
32
10
20
17
1.5
8
430305
RTE.20x1.5-M8
17
42
10
30
13
20
17
1.5
5
430311
RTE.22x1.0-M6
20
42
12
32
10
22
20
1
9
430313
RTE.22x1.0-M8
20
42
10
30
13
22
20
1
7
430321
RTE.22x1.2-M8
19.6
42
10
30
13
22
19.6
1.2
7
430323
RTE.22x1.5-M6
19
42
12
32
10
22
19
1.5
9
430325
RTE.22x1.5-M8
19
42
10
30
13
22
19
1.5
6
430331
RTE.25x1.0-M6
23
42
12
32
10
25
23
1
12
430333
RTE.25x1.5-M6
22
42
12
32
10
25
22
1.5
11
430335
RTE.25x1.5-M8
22
42
10
30
13
25
22
1.5
11
430341
RTE.28x1.5-M6
25
41
12
32
10
28
25
1.5
17
430343
RTE.28x1.5-M8
25
42
10
30
13
28
25
1.5
15
430345
RTE.28x2.0-M8
24
42
10
30
13
28
24
2
14
430351
RTE.30x1.0-M8
28
42
10
30
13
30
28
1
17
430353
RTE.30x1.5-M8
27
42
10
30
13
30
27
1.5
17
430355
RTE.30x1.5-M10
27
42
10
30
17
30
27
1.5
8
430357
RTE.30x2.0-M8
26
42
10
30
13
30
26
2
15
430359
RTE.30x2.0-M10
26
42
10
30
17
30
26
2
13
430361
RTE.32x1.2-M6
29.6
42
12
32
10
32
29.6
1.2
23
430363
RTE.32x1.5-M10
29
42
10
30
17
32
29
1.5
18
430365
RTE.32x2.0-M6
28
41.5
12
32
10
32
28
2
22
430367
RTE.32x2.0-M10
28
42
10
30
17
32
28
2
16
430369
RTE.32x2.5-M10
27
42
10
30
17
32
27
2.5
15
430371
RTE.35x1.5-M6
32
40
12
32
10
35
32
1.5
27
430373
RTE.35x1.5-M10
32
42
10
29
17
35
32
1.5
22
430375
RTE.35x2.0-M10
31
42
10
30
17
35
31
2
10
430377
RTE.35x2.5-M6
30
42
12
32
10
35
30
2.5
20
430381
RTE.40x1.5-M8
37
42
10
30
13
40
37
1.5
33
430383
RTE.40x1.5-M10
37
42
10
30
17
40
37
1.5
31
430385
RTE.40x2.0-M10
36
42
10
30
17
40
36
2
28
430387
RTE.40x2.5-M6
35
43
12
32
10
40
35
2.5
21
The drawing shows the assembled connector. The two technopolymer pieces composing it may have different shapes depending on the dimensions and / or executions.

Material

Polyamide based (PA) technopolymer, black colour, matte finish.

Features and applications

The two connector parts are connected together by means of pins which are housed in special counter-seats. Two cavities inside the connector are provided for housing an hexagonal-head screw or an hexagonal nut. Thanks to the tapered shape of the cavity, the connector exerts a pressure on the inner walls of the tube, due to the tightening of the screw or of the nut, thus ensuring the tensile strength of the connection. The level of the tensile strength depends on the tube dimensional tolerances, the roughness of the tube inner surfaces and the tightening torque applied.

The connector allows the joining of round tubes to one another or to other elements.

The assembly can be performed simply by positioning the connector, forcing it, inside the profile, with no need of screws or other fasteners.

Assembly of the tube to the connector

It can be made as an alternative with:

  • Hexagonal-head screw DIN 933 of dimension as shown in the table.
  • Hexagonal nut DIN 934 of dimension as shown in the table.
  • Self-locking hexagonal nut DIN 985 of dimension as shown in the table.

Special executions on request

Connector assembled with nut or screw.

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Round tube expander end-caps

NDE.T

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NDL.T

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STE

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