D膜片

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概述

这种膜片与F型膜片除了在凸缘式安装座方面有不同之处外，其他各个方面都基本一样。通过将珠子挤进一个尺寸适当的凹槽，能达成密封的目的。汽缸和阀帽能被设计为在装配时利用积极联系，从而无需安装近程控制装配扭矩。同时，它能减少膜片全径和硬件直径。
Type D Diaphragm
Dimensions and Tolerances
Type D Dimensions and Tolerances
Inches mm Inches mm Inches mm Inches mm Inches mm
Cylinder Diameter
.37-.99
9-25
1.00-2.50
25-64
2.51-4.00
64-102
4.01-8.00
102-205
8.01 & up
205 & up
Height
See available sizes table
Cylinder Diameter
Tolerances on Cylinder Diameter and Piston Diameter are ± 0.010 per inch (0.254 mm) of diameter but the tolerance will be no less than ± 0.010 (0.254 mm) or greater than ± 0.060 (1.52 mm)
Piston Diameter
Head & Flange Thickness
.015 ± .003
0.38 ± 0.08
.017 ± .004
0.43 ± 0.10
.024 ± .004
0.61 ± 0.10
.035 ± .005
0.89 ± 0.13
.045 ± .007
1.14 ± 0.18
Wall Gauge
.015 ± .003
0.38 ± 0.08
.017 ± .003
0.43 ± 0.08
.024 ± .004
0.61 ± 0.10
.035 ± .005
0.89 ± 0.13
.045 ± .007
1.14 ± 0.18
Flash Projection
.025 Max.
0.64 Max.
.025 Max.
0.64 Max.
.035 Max.
0.89 Max.
.040 Max.
1.02 Max.
.056 Max.
1.42 Max.
Flash Thickness
.025 Max.
0.64 Max.
.025 Max.
0.64 Max.
.035 Max.
0.89 Max.
.040 Max.
1.02 Max.
.056 Max.
1.42 Max.
Piston Radius
.094
2.39
.125
3.18
.156
3.96
.250
6.35
.250
6.35
Flange Radius
.031
0.79
.063
1.60
.094
2.39
.125
3.18
.125
3.18
Flange Diameter
Cyl. Diam. + .313
Cyl. Diam. + 7.95
Cyl. Diam. + .500
Cyl. Diam. + .12.70
Cyl. Diam. + .750
Cyl. Diam. + 19.05
Cyl. Diam. + 1.000
Cyl. Diam. + 25.40
Cyl. Diam. + 1.000
Cyl. Diam. + 25.40
Bead Width
.094 ± .003
2.39 ± 0.08
.125 ± .003
3.18 ± 0.08
.187 ± .003
4.75 ± 0.08
.250 ± .003
6.35 ± 0.08
.250 ± .004
6.35 ± 0.10
Bead Height
.095 ± .004
2.41 ± 0.10
.135 ± .004
3.43 ± 0.10
.200 ± .005
5.08 ± 0.13
.270 ± .007
6.86 ± 0.18
.270 ± .008
6.86 ± 0.20
Diaphragm Flange Diameter and Hole Trim Tolerance
Diameter Size Position
(Inches) (mm) (Inches) (mm) (Inches) (mm)

0-1.00
.0-25.40
± .010
0.25
.010
0.25

1.01-3.00
25.65-76.20
± .020
0.51
.020
0.51

over 3.01
76.45
± .030
0.76
.030

 0.76
Hardware Recommendations
Type D Hardware Recommendations
Cylinder Diameter
.25-.99
6-25
1.00-2.50
25-64
2.51-4.00
64-102
4.01-8.00
102-205
8.01 & up
205 & up

Groove Width
.109
2.77
.141
3.58
.219
5.56
.281
7.14
.281
7.14

± .003
0.08 ±

Groove Height
.076
1.93
.105
2.67
.160
4.06
.224
5.69
.224
5.69

± .002
0.05 ±

Flange & Piston Corner Radii
.031
0.79
.063
1.60
.094
2.39
.125
3.18
.125
3.18

Lip Width
.062
1.57
.125
3.18
.187
4.75
.250
6.35
.250
6.35

± .003
0.08 ±

Lip Clearance
.021
0.53
.021
0.53
.031
0.79
.036
0.91
.048
1.22
Available Sizes
Dia•Com
Part No.		 Cylinder
Diameter
 Piston
Diameter
 Height
 Gauge
Approx.
 Convolution
Width
 Effective
Pressure
Area
 Maximum
Half-Stroke
(Inches) (mm) (Inches) (mm) (Inches) (mm) (Inches) (mm) (Inches) (mm) (Inches) * (Inches) (mm)

D-50-38
0.50
13
0.37
9
0.38
10
.015
0.38
.065
1.7
0.15
1.0
0.15
3.8

D-62-51
0.62
16
0.47
12
0.51
13
.015
0.38
.075
1.9
0.23
1.5
0.25
6.4

D-62-50
0.62
16
0.50
13
0.50
13
.015
0.38
.060
1.5
0.25
1.6
0.28
7.1

D-62-68
0.62
16
0.50
13
0.50
13
.015
0.38
.060
1.5
0.25
1.6
0.41
10.4

D-79-79
0.79
20
0.59
15
0.79
20
.017
0.43
.100
2.5
0.37
2.4
0.66
16.8

D-81-69
0.81
21
0.69
18
0.69
18
.016
0.41
.060
1.5
0.44
2.8
0.47
11.9

D-87-31
0.87
22
0.75
19
0.31
8
.015
0.38
.060
1.5
0.52
3.3
0.09
2.3

D-94-81
0.94
24
0.81
21
0.81
21
.017
0.43
.065
1.7
0.60
3.4
0.58
14.7

D-100-48
1.00
25
0.81
21
0.48
12
.012
0.30
.095
2.4
0.64
4.1
0.10
2.5

D-100-81
1.00
25
0.81
21
0.81
21
.020
0.51
.095
2.4
0.64
4.1
0.43
10.9

D-100-100
1.00
25
0.81
21
1.00
25
.017
0.43
.095
2.4
0.64
4.1
0.62
15.7

D-112-94
1.12
28
0.94
24
0.94
24
.017
0.43
.090
2.3
0.83
5.4
0.57
14.5

D-118-71
1.18
30
0.98
25
0.71
18
.017
0.43
.100
2.5
0.92
5.9
0.58
14.7

D-128-74
1.28
33
1.08
27
0.74
19
.017
0.43
.100
2.5
1.09
7.0
0.61
15.5

D-137-44
1.37
35
1.19
30
0.44
11
.017
0.43
.090
2.3
1.29
8.3
0.07
1.8

D-137-56
1.37
35
1.19
30
0.56
14
.017
0.43
.090
2.3
1.29
8.3
1.28
32.5

D-137-137
1.37
35
1.19
30
1.37
35
.017
0.43
.090
2.3
1.29
8.3
1.00
25.4

D-138-110
1.38
35
1.18
30
1.10
28
.017
0.43
.100
2.5
1.29
8.3
0.97
24.6

D-150-44
1.50
38
1.31
33
0.44
11
.017
0.43
.095
2.4
1.55
10.0
0.06
1.5

D-150-125
1.50
38
1.31
33
1.25
32
.017
0.43
.095
2.4
1.55
10.0
0.87
22.1

D-160-135
1.60
41
1.40
36
1.35
34
.015
0.38
.100
2.5
1.77
11.4
1.22
31.0

D-162-69
1.62
41
1.25
32
0.69
18
.014
0.36
.185
4.7
1.62
10.4
0.16
4.1

D-167-66
1.67
42
1.42
36
0.66
17
.017
0.43
.125
3.2
1.87
12.1
0.22
5.6

D-175-52
1.75
44
1.56
40
0.52
13
.017
0.43
.095
2.4
2.15
13.9
0.14
3.6

D-175-75
1.75
44
1.56
40
0.75
19
.017
0.43
.095
2.4
2.15
13.9
0.37
9.4

D-200-81
2.00
51
1.81
46
0.81
21
.020
0.51
.095
2.4
2.85
18.4
0.43
10.9

D-200-125
2.00
51
1.81
46
1.25
32
.017
0.43
.095
2.4
2.85
18.4
0.87
22.1

D-200-200
2.00
51
1.81
46
2.00
51
.017
0.43
.095
2.4
2.85
18.4
1.62
41.1

D-225-94
2.25
57
2.06
52
0.94
24
.017
0.43
.095
2.4
3.65
23.53
0.56
14.2

D-225-137
2.25
57
2.06
52
1.37
35
.017
0.43
.095
2.4
3.65
23.5
0.99
25.1

D-225-211
2.25
57
2.06
52
2.11
54
.017
0.43
.095
2.4
3.65
23.5
1.73
43.9

D-250-106
2.50
64
2.31
59
1.06
27
.017
0.43
.095
2.4
4.54
29.3
0.68
17.3

D-250-150
2.50
64
2.31
59
1.50
38
.017
0.43
.095
2.4
4.54
29.3
1.12
28.4

D-250-212
2.50
64
2.31
59
2.12
54
.017
0.43
.095
2.4
4.54
29.3
1.74
44.2

D-260-84
2.60
66
2.40
61
0.84
21
.017
0.43
.100
2.5
4.91
31.7
0.71
18.0

D-300-175
3.00
76
2.69
68
1.75
44
.024
0.61
.155
3.6
6.35
41.0
1.20
30.5

D-300-300
3.00
76
2.69
68
3.00
76
.024
0.61
.155
3.9
6.35
41.0
2.45
62.2

D-325-194
3.25
83
2.94
75
1.94
49
.024
0.61
.155
3.9
7.52
48.5
1.39
35.3

D-375-225
3.75
95
3.44
87
2.25
57
.024
0.61
.155
3.9
10.15
65.5
1.70
43.2

D-375-375
3.75
95
3.44
87
3.75
95
.024
0.61
.155
3.9
10.15
65.5
3.20
81.3

D-386-400
3.86
98
3.54
90
4.00
102
.030
0.76
.160
4.1
10.75
69.3
3.80
96.5

D-400-400
4.00
102
3.44
87
4.00
102
.030
0.76
.280
7.1
10.86
70.1
3.69
93.7

D-400-100
4.00
102
3.69
94
1.00
25
.024
0.61
.155
3.9
11.61
74.9
0.45
11.4

D-550-175
5.50
140
5.00
127
1.75
44
.035
0.89
.250
6.4
21.64
139.6
0.97
24.6

D-800-187
8.00
203
7.50
191
1.87
47
.035
0.89
.250
6.4
47.15
304.2
1.09
27.7

D-800-450
8.00
203
7.50
191
4.50
114
.035
0.89
.250
6.4
47.15
304.2
3.72
94.5

D-1200-100
12.00
305
11.50
292
1.00
25
.045
1.14
.250
6.4
108.38
699.2
0.22
5.6

D-1350-100
13.50
343
13.00
330
1.00
25
.045
1.14
.250
6.4
137.82
889.1
0.22
5.6

D-1500-100
15.00
381
14.50
368
1.00
25
.045
1.14
.250
6.4
170.79
1101.8
0.22
5.6

*Metric effective pressure area shown in square centimeters.