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Tri-clamp ferrule dimensions
Tri-clamp connections are widely used in hygienic process engineering. You mainly use them in piping systems that have to be regularly assembled and disassembled for cleaning purposes or for a regularly process change.
Some advantages of tri-clamp couplings:
- You don't need any tools to loosen or tighten a tri-clamp coupling.
- There are no male and female parts, just 2 identical liners to make the connection.
- Tri-clamps are accepted in all international hygienic piping system standards.
Dimensions of tri-clamp ferrules
ISO 1127 Series 1 - Tri-clamp ferrule dimensions
|
DN |
D |
D1 |
D2 |
T |
L |
|
8 |
13,5 |
10,3 |
25,4 |
1,6 |
21,5 |
|
10 |
17,2 |
14 |
25,4 |
1,6 |
21,5 |
|
15 |
21,3 |
18,1 |
50,5 |
1,6 |
21,5 |
|
20 |
26,9 |
22,9 |
50,5 |
2 |
21,5 |
|
25 |
33,7 |
29,7 |
50,5 |
2 |
21,5 |
|
32 |
42,4 |
38,4 |
50,5 |
2 |
21,5 |
|
40 |
48,3 |
44,3 |
64 |
2 |
21,5 |
|
50 |
60,3 |
56,3 |
77,5 |
2 |
21,5 |
|
65 |
76,1 |
72,1 |
91 |
2 |
21,5 |
|
80 |
8,9 |
84,9 |
106 |
2 |
21,5 |
|
100 |
114,3 |
110,3 |
130 |
2 |
28 |
|
125 |
139,7 |
135,7 |
155 |
2 |
28 |
|
150 |
168,3 |
163,1 |
183 |
2,6 |
28 |
|
200 |
219,1 |
213,9 |
233,5 |
2,6 |
28 |
|
250 |
273 |
267,8 |
286,1 |
2,6 |
28 |
|
300 |
323,9 |
318,7 |
338,5 |
2,6 |
28 |
ISO 2037 Series 1 - Tri-clamp ferrule dimensions
|
INCH |
D |
D1 |
D2 |
T |
L |
|
3/4" |
20 |
17,6 |
50,5 |
1,2 |
21,5 |
|
1" |
25 |
22,6 |
50,5 |
1,2 |
21,5 |
|
1 1/4" |
38 |
35,6 |
50,5 |
1,2 |
21,5 |
|
1 1/2" |
40 |
37,6 |
50,5 |
1,2 |
21,5 |
|
2" |
51 |
48,6 |
64 |
1,2 |
21,5 |
ISO 2037 Series 3 - Tri-clamp ferrule dimensions
|
INCH |
D |
D1 |
D2 |
T |
L |
|
1" |
25 |
21,8 |
50,5 |
1,6 |
21,5 |
|
1 1/2" |
38 |
34,8 |
50,5 |
1,6 |
21,5 |
|
1 1/2" |
40 |
36,8 |
50,5 |
1,6 |
21,5 |
|
2" |
51 |
47,8 |
64 |
1,6 |
21,5 |
|
2 1/2" |
63,5 |
60,3 |
77,5 |
1,6 |
21,5 |
|
3" |
70 |
66,8 |
91 |
1,6 |
21,5 |
|
4" |
101,6 |
97,8 |
119 |
2 |
21,5 |
DIN 32676 Series 1 - Tri-clamp ferrule dimensions
|
DN |
D |
D1 |
D2 |
T |
L |
|
10 |
12 |
10 |
34 |
2 |
18 |
|
15 |
18 |
16 |
34 |
2 |
18 |
|
20 |
22 |
20 |
34 |
2 |
18 |
|
25 |
28 |
26 |
50,5 |
2 |
21,5 |
|
32 |
34 |
32 |
50,5 |
2 |
21,5 |
|
40 |
40 |
38 |
50,5 |
2 |
21,5 |
|
50 |
52 |
50 |
64 |
2 |
21,5 |
DIN 32676 Series 2 - Tri-clamp ferrule dimensions
|
DN |
D |
D1 |
D2 |
T |
L |
|
125 |
129 |
125 |
144,4 |
2 |
28 |
|
150 |
154 |
150 |
167 |
2 |
28 |
|
200 |
204 |
200 |
217,4 |
2 |
28 |
|
250 |
254 |
250 |
268 |
2 |
28 |
|
300 |
304 |
300 |
319 |
2 |
28 |
DIN 32676 Series 3 - Tri-clamp ferrule dimensions
|
DN |
D |
D1 |
D2 |
T |
L |
|
10 |
14 |
10 |
34 |
2 |
18 |
|
15 |
20 |
16 |
34 |
2 |
18 |
|
20 |
24 |
20 |
34 |
2 |
18 |
|
25 |
30 |
26 |
50,5 |
2 |
21,5 |
|
32 |
36 |
32 |
50,5 |
2 |
21,5 |
|
40 |
42 |
38 |
50,5 |
2 |
21,5 |
|
50 |
54 |
50 |
64 |
2 |
21,5 |
BS4825-3 - Tri-clamp ferrule dimensions
|
INCH |
D |
D1 |
D2 |
T |
L |
|
1/2" |
12,7 |
9,52 |
25,4 |
1,59 |
21,5 |
|
3/4" |
19,05 |
15,87 |
25,4 |
1,59 |
21,5 |
|
1" |
25,65 |
22,2 |
50,5 |
1,73 |
21,5 |
|
1 1/2" |
38,35 |
34,9 |
50,5 |
1,73 |
21,5 |
|
2" |
51,05 |
47,6 |
64 |
1,73 |
21,5 |
|
2 1/2" |
63,75 |
60,3 |
77,5 |
1,73 |
21,5 |
|
3" |
76,45 |
73 |
91 |
1,73 |
21,5 |
|
3 1/2" |
88,9 |
84,7 |
106 |
2,1 |
21,5 |
|
4" |
101,85 |
97,6 |
119 |
2,13 |
21,5 |
|
4 1/2" |
114,95 |
110,3 |
130 |
2,33 |
28 |
|
5" |
127 |
123 |
144,4 |
2,0 |
28 |
|
5 1/2" |
140,55 |
135,76 |
155 |
2,4 |
28 |
|
6" |
154 |
150 |
167 |
2 |
28 |
|
6 5/8" |
169,35 |
163,1 |
183 |
3,13 |
28 |
|
8" |
204 |
200 |
217,4 |
2 |
28 |
|
8 5/8" |
220,55 |
213,9 |
233,5 |
3,33 |
28 |
|
10" |
254 |
250 |
268 |
2 |
28 |
|
10 5/8" |
273 |
266,3 |
286,1 |
3,35 |
28 |
|
12" |
304,8 |
300,8 |
319 |
2 |
28 |
|
12 5/8" |
323,8 |
315,9 |
338 |
3,95 |
28 |
ASME-BPE - Tri-clamp ferrule dimensions
|
INCH |
D |
D1 |
D2 |
T |
L-short |
L-long |
|
1/4" |
6,35 |
4,57 |
25,4 |
0,89 |
28,5 |
44,5 |
|
3/8" |
9,52 |
7,74 |
25,4 |
0,89 |
28,5 |
44,5 |
|
1/2" |
12,7 |
9,4 |
25,4 |
1,65 |
28,5 |
44,5 |
|
3/4" |
19,05 |
15,75 |
25,4 |
1,65 |
28,5 |
44,5 |
|
1" |
25,4 |
22,1 |
50,5 |
1,65 |
28,5 |
44,5 |
|
1 1/2" |
38,1 |
34,8 |
50,5 |
1,65 |
28,5 |
44,5 |
|
2" |
50,8 |
47,5 |
64 |
1,65 |
28,5 |
57,2 |
|
2 1/2" |
63,5 |
60,2 |
77,5 |
1,65 |
28,5 |
57,2 |
|
3" |
76,2 |
72,9 |
91 |
1,65 |
28,5 |
57,2 |
|
4" |
101,6 |
97,38 |
119 |
2,11 |
28,5 |
57,2 |
|
6" |
152,4 |
146,86 |
167 |
2,77 |
28,5 |
76,2 |
SMS 3008 - Tri-clamp ferrule dimensions
|
INCH |
D |
D1 |
D2 |
T |
L |
|
3/4" |
18 |
16 |
25,4 |
1 |
21,5 |
|
1" |
25 |
22,6 |
50,5 |
1,2 |
21,5 |
|
1 1/2" |
38 |
35,6 |
50,5 |
1,2 |
21,5 |
|
2" |
51 |
48,6 |
64 |
1,2 |
21,5 |
|
2 1/2" |
63,5 |
60,3 |
77,5 |
1,6 |
21,5 |
|
3" |
76,1 |
72,9 |
91 |
1,6 |
21,5 |
|
3 1/2" |
89 |
85 |
106 |
2 |
21,5 |
|
4" |
101,6 |
97,6 |
119 |
2 |
21,5 |
SMS 3017 - Tri-clamp ferrule dimensions
|
INCH |
D |
D1 |
D2 |
T |
L |
|
1" |
25,6 |
22,6 |
50,5 |
1,5 |
21,5 |
|
1 1/4" |
33,7 |
30,7 |
50,5 |
1,5 |
21,5 |
|
1 1/2" |
38,6 |
35,6 |
50,5 |
1,5 |
21,5 |
|
2" |
51,6 |
48,6 |
64 |
1,5 |
21,5 |
|
2 1/2" |
64,1 |
60,3 |
77,5 |
1,9 |
21,5 |
|
3" |
76,7 |
72,9 |
91 |
1,9 |
21,5 |
|
3 1/2" |
89,8 |
84,9 |
106 |
2,45 |
21,5 |
|
4" |
102,5 |
97,6 |
119 |
2,45 |
21,5 |
Schedule 5 - Tri-clamp ferrule dimensions
|
INCH |
D |
D1 |
D2 |
T |
L |
|
1/2" |
21,34 |
18,04 |
50,5 |
1,65 |
21,5 |
|
3/4" |
26,67 |
23,37 |
50,5 |
1,65 |
21,5 |
|
1" |
33,4 |
30,1 |
50,5 |
1,65 |
21,5 |
|
1 1/4" |
42,16 |
38,86 |
50,5 |
1,65 |
21,5 |
|
1 1/2" |
48,26 |
44,96 |
64 |
1,65 |
21,5 |
|
2" |
60,32 |
57,02 |
77,5 |
1,65 |
21,5 |
|
2 1/2" |
73,03 |
68,81 |
91 |
2,11 |
21,5 |
|
3" |
88,9 |
84,68 |
106 |
2,11 |
21,5 |
|
3 1/2" |
101,6 |
97,38 |
119 |
2,11 |
21,5 |
|
4" |
114,3 |
110,08 |
130 |
2,11 |
28 |
|
5" |
141,3 |
135,76 |
155 |
2,77 |
28 |
|
6" |
168,28 |
162,74 |
183 |
2,77 |
28 |
|
8" |
219,08 |
213,54 |
233,5 |
2,77 |
28 |
|
10" |
273,05 |
266,25 |
286,1 |
3,4 |
28 |
|
12" |
323,85 |
315,93 |
338 |
3,96 |
28 |
Schedule 10 - Tri-clamp ferrule dimensions
|
INCH |
D |
D1 |
D2 |
T |
L |
|
1/2" |
21,34 |
17,12 |
50,5 |
2,11 |
21,5 |
|
3/4" |
26,67 |
22,45 |
50,5 |
2,11 |
21,5 |
|
1" |
33,4 |
27,86 |
50,5 |
2,77 |
21,5 |
|
1 1/4" |
42,16 |
36,62 |
50,5 |
2,77 |
21,5 |
|
1 1/2" |
48,26 |
42,72 |
64 |
2,77 |
21,5 |
|
2" |
60,32 |
54,79 |
77,5 |
2,77 |
21,5 |
|
2 1/2" |
73,03 |
66,93 |
91 |
3,05 |
21,5 |
|
3" |
88,9 |
82,82 |
106 |
3,05 |
21,5 |
|
3 1/2" |
101,6 |
95,50 |
119 |
3,05 |
21,5 |
|
4" |
114,3 |
108,20 |
130 |
3,05 |
28 |
|
5" |
141,3 |
134,50 |
155 |
3,40 |
28 |
|
6" |
168,28 |
161,47 |
183 |
3,41 |
28 |
|
8" |
219,08 |
211,56 |
233,5 |
3,76 |
28 |
|
10" |
273,05 |
264,67 |
286,1 |
4,19 |
28 |
|
12" |
323,85 |
314,71 |
338 |
4,57 |
28 |
Schedule 40 - Tri-clamp ferrule dimensions
|
INCH |
D |
D1 |
D2 |
T |
L |
|
1/2" |
21,34 |
15,8 |
50,5 |
2,77 |
21,5 |
|
3/4" |
26,67 |
20,93 |
50,5 |
2,87 |
21,5 |
|
1" |
33,4 |
26,64 |
50,5 |
3,38 |
21,5 |
|
1 1/4" |
42,16 |
35,04 |
50,5 |
3,56 |
21,5 |
|
1 1/2" |
48,26 |
40,88 |
64 |
3,69 |
21,5 |
|
2" |
60,32 |
52,51 |
77,5 |
3,91 |
21,5 |
|
2 1/2" |
73,03 |
62,71 |
91 |
5,16 |
21,5 |
|
3" |
88,9 |
77,92 |
106 |
5,49 |
21,5 |
|
3 1/2" |
101,6 |
90,12 |
119 |
5,74 |
21,5 |
|
4" |
114,3 |
102,26 |
130 |
6,02 |
28 |
|
5" |
141,3 |
128,20 |
155 |
6,55 |
28 |
|
6" |
168,28 |
154,06 |
183 |
7,11 |
28 |
|
8" |
219,08 |
202,72 |
233,5 |
8,18 |
28 |
|
10" |
273,05 |
254,51 |
286,1 |
9,27 |
28 |
|
12" |
323,85 |
304,79 |
338 |
9,53 |
28 |
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Designing hygienic process systems: The DIN-EN standards
-
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-
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