Tube Sizing
Polyimide Tube Dimensions by ID
MicroLumen has been a trusted leader in the design and manufacture of high performance medical tubing for minimally invasive and critical OEM applications. For decades, we’ve partnered with medical device innovators to advance healthcare technology through precision‑engineered solutions.
Inside Diameter
Code
inch
mm
1000
0.100
2.54
980
0.098
2.48
960
0.096
2.43
940
0.094
2.38
920
0.092
2.33
900
0.090
2.28
880
0.088
2.23
860
0.086
2.18
830
0.083
2.11
810
0.081
2.06
790
0.079
2.01
780
0.078
1.92
770
0.077
1.96
760
0.076
1.93
750
0.075
1.9
745
0.0745
1.89
730
0.073
1.85
720
0.072
1.83
710
0.071
1.8
700
0.07
1.78
690
0.069
1.75
680
0.068
1.72
670
0.067
1.7
660
0.066
1.68
650
0.065
1.65
640
0.064
1.63
630
0.063
1.6
620
0.062
1.57
610
0.061
1.55
600
0.06
1.52
590
0.059
1.49
580
0.058
1.47
575
0.0575
1.46
560
0.056
1.42
550
0.055
1.39
530
0.053
1.35
520
0.052
1.32
510
0.051
1.3
500
0.05
1.27
490
0.049
1.24
480
0.048
1.22
470
0.047
1.19
450
0.045
1.14
445
0.0445
1.13
430
0.043
1.09
420
0.042
1.07
410
0.041
1.04
400
0.04
1.02
395
0.0395
1
390
0.039
0.99
380
0.038
0.97
370
0.037
0.94
360
0.036
0.91
350
0.035
0.89
340
0.034
0.86
335
0.0335
0.85
325
0.0325
0.83
320
0.032
0.81
315
0.0315
0.8
310
0.031
0.79
300
0.03
0.76
295
0.0295
0.75
285
0.0285
0.72
275
0.0275
0.7
265
0.0265
0.67
260
0.026
0.66
250
0.025
0.64
245
0.0245
0.62
235
0.0235
0.6
220
0.022
0.56
215
0.0215
0.55
210
0.021
0.53
195
0.0195
0.5
190
0.019
0.48
185
0.0185
0.47
175
0.0175
0.44
165
0.0165
0.42
160
0.016
0.41
155
0.0155
0.39
150
0.015
0.38
145
0.0145
0.37
135
0.0135
0.34
130
0.013
0.33
125
0.0125
0.32
120
0.012
0.3
110
0.011
0.28
100
0.01
0.25
95
0.0095
0.24
85
0.0085
0.22
80
0.008
0.2
75
0.0075
0.19
68
0.0068
0.17
61
0.0061
0.15
54
0.0054
0.14
49
0.0049
0.12
44
0.0044
0.11
39
0.0039
0.1
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