3.3.3 Gasket Size(customer pipe)
WARNING
All gaskets used for piping of Magnetic Flowmeters should be prepared by customers except in some cases.
Be sure to choose a gasket with an inner and outer diameter that does not protrude inside the piping.
If the inner diameter of the gasket is too large, or outer diameter of the gasket is too small, fluid leakage may result.
Table 3.3.8 Inner Diameter of Grounding Ring, Outer Diameter for Effective Sealing and Recommended Inner Diameter of Gasket
Unit: mm
Size
Natural Hard Rubber/Natural Soft Rubber/Polyurethane Rubber Lining
PTFE/Natural Hard Rubber/Natural Soft Rubber/Polyurethane Rubber Lining
Wafer
Flange
Inner
Diameter
for Effective
Sealing
[øA]
Outer
Diameter
for Effective
Sealing
[øB]
Recommended Inner
Diameter of Gasket
Minimum
Inner
Diameter of
Gasket
*
2
Inner
Diameter
for Effective
Sealing
[øA]
Outer Diameter
for Effective Sealing [øB]
Recommended Inner
Diameter of Gasket
Minimum
Inner
Diameter of
Gasket
*
2
Flat
Gasket
[øC]
PTFE-
sheathed
Gasket
[øD]
PTFE/Natural
Hard Rubber/
Natural Soft
Rubber Lining
Polyurethane
Rubber
Lining
Flat
Gasket
[øC]
PTFE-
sheathed
Gasket
[øD]
25
32
54
35
28
35
54
35
29
32
37
58
43
34
40
64
43
34
40
45
71
49
41
48
72
49
41
50
58
84
61
53
61
89
61
53
65
69
103
84
66
72
108
84
66
80
81
114
90
81
85
119
90
81
100
106
140
115
102
110
146
115
102
125
131
165
141
128
136
173
141
128
150
164
190
167
147
164
209 {216} *
1
203 {209} *
1
167
150
200
218
240
218
199
218
259 {272} *
1
253 {259} *
1
218
201
250
−
−
−
−
270
320 {332} *
1
316 {320} *
1
270
250
300
−
−
−
−
321
367 {392} *
1
361 {367} *
1
321
301
350
−
−
−
−
350
412
406
359
330
400
−
−
−
−
401
475
469
410
381
Unit: inch
Size
Natural Hard Rubber/Natural Soft Rubber/Polyurethane Rubber Lining
PTFE/Natural Hard Rubber/Natural Soft Rubber/Polyurethane Rubber Lining
Wafer
Flange
Inner
Diameter
for Effective
Sealing
[øA]
Outer
Diameter
for Effective
Sealing
[øB]
Recommended Inner
Diameter of Gasket
Minimum
Inner
Diameter of
Gasket
*
2
Inner
Diameter
for Effective
Sealing
[øA]
Outer Diameter
for Effective Sealing [øB]
Recommended Inner
Diameter of Gasket
Minimum
Inner
Diameter of
Gasket
*
2
Flat
Gasket
[øC]
PTFE-
sheathed
Gasket
[øD]
PTFE/Natural
Hard Rubber/
Natural Soft
Rubber Lining
Polyurethane
Rubber
Lining
Flat
Gasket
[øC]
PTFE-
sheathed
Gasket
[øD]
25
1.26
2.13
1.38
1.10
1.39
2.13
1.38
1.14
32
1.46
2.28
1.69
1.34
1.59
2.53
1.69
1.34
40
1.76
2.80
1.93
1.61
1.89
2.83
1.93
1.61
50
2.26
3.31
2.40
2.09
2.39
3.50
2.40
2.09
65
2.73
4.06
3.31
2.60
2.84
4.25
3.31
2.60
80
3.19
4.49
3.54
3.19
3.33
4.69
3.54
3.19
100
4.19
5.51
4.53
4.02
4.34
5.75
4.53
4.02
125
5.14
6.50
5.55
5.04
5.34
6.81
5.55
5.04
150
6.46
7.48
6.57
5.79
6.46
8.23 {8.50}*
1
7.99 {8.23}*
1
6.57
5.91
200
8.58
9.45
8.58
7.83
8.58
10.20 {10.71}*
1
9.96 {10.20}*
1
8.58
7.91
250
−
−
−
−
10.61
12.60 {13.07}*
1
12.44 {12.60}*
1
10.63
9.84
300
−
−
−
−
12.64
14.44 {15.43}*
1
14.21 {14.45}*
1
12.64
11.85
350
−
−
−
−
13.76
16.22
15.98
14.13
12.99
400
−
−
−
−
15.78
18.70
18.46
16.14
15.00
*1: The value varies depending on the selection of process connection code.
BA2, BJ2, CA2, or CJ2: Value in { }.
Lining
øC
øD
øB
øA
Gasket inner diameter (*2)
Sensor
Flat gasket
or
PTFE sheathed gasket
F0324.ai
*2: To prevent the gasket from protruding into the flow path, make sure that this length is smaller than the minimum inner diameter of the gasket in the table.
<3. Installation>
24
IM 01E24A01-01EN
