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Squarelock Conduit 

TongFengflex manufactures unique tubing that is relied on in numerous industries. The tubing is produced by helical coiling of metal strip onto a spindle, with the helical coils being linked with each other by means of a special type of strip profile. Basic materials for the strip are stainless steel. However, other metals are also available.

Applications: Instrumentation tubing is used by manufacturers of various industries, such as Process & Control Instrumentation, Measuring & Controlling Devices, Analytical Instruments, Medical Instruments and many others with specific applications including temperature measuring, wiring conduit or armor cable and protective casing.

Instrumentation tubing is made in two configurations, or constructions, commonly called SquareLok and InterLock, and is often abbreviated as TF-D and TF-S.

Technical Data:

SquareLok Style (TF-D)SquareLock tubing is produced from a continuous metal strip, and is held in position by locking one leg of one profile over the leg of the adjacent profile.

TYPE

ID

OD

Tolerance +/-

 

Weight

]

Bending radius

Load strength

Tensile strength

TF-D0406

4

6

0.1

0.034

15

800

320

TF-D0507

5

7

0.1

0.039

17

835

340

TF-D0608

6

8

0.1

0.044

19

875

360

TF-D0709

7

9

0.1

0.049

20

930

380

TF-D0810

8

10

0.1

0.056

22

975

400

TF-D0911

9

11

0.1

0.063

25

1020

450

TF-D1013

10

13

0.1

0.100

30

1060

500

TF-D1114

11

14

0.1

0.110

31

1095

550

TF-D1215

12

15

0.1

0.120

32

1140

600

TF-D1316

13

16

01

0.130

33

1175

650

TF-D1417

14

17

0.1

0.140

35

1215

700

TF-D1518

15

18

0.1

0.150

37

1250

720

TF-D1619

16

19

0.1

0.160

40

1290

760

TF-D1720

17

20

0.1

0.170

45

1330

800

TF-D1821

18

21

0.1

0.180

42

1470

890

TF-D1923

19

23

0.2

0.212

40

1510

840

TF-D2024

20

24

0.2

0.223

42

1545

890

TF-D2125

21

25

0.2

0.235

45

1580

920

Fully InterLock Style (TF-S) InterLock metal strip and the edges of the strip are completely interlocked with each other.  This offers increased crush protection, and higher axial strength.

TYPE

ID

OD

Tolerance +/-

Weight

 

Bending radius

Load strength

Tensile strength

TF-S0406

4

6

0.1

0.053

25

900

200

TF-S4267

4.2

6.7

0.1

0.066

28

955

285

TF-S5378

5.3

7.8

0.1

0.079

32

1000

395

TF-S5580

5.5

8

0.1

0.082

35

1050

400

TF-S5984

5.9

8.4

0.1

0.086

38

1185

450

TF-S6590

6.5

9

0.1

0.093

40

1125

500

TF-S8011

8

11

0.1

0.141

45

1275

700

TF-S9012

9

12

0.1

0.159

50

1340

800

TF-S1013

10

13

0.1

0.177

55

1415

900

TF-S1114

11

14

0.1

0.195

65

1480

1000

TF-S1215

12

15

0.1

0.213

70

1550

1100

TF-S1316

13

16

0.1

0.230

75

1620

1200

TF-S1417

14

17

0.1

0.248

80

1690

1300

TF-S1518

15

18

0.1

0.265

82

1765

1400

 


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