|
General Description
| This
style diaphragm is the same as the Type F in all respects
except flange mounting. The parts are molded with what
equates to half of an O-ring on the flange rather than
a large flat surface. This O-Ring half fits into a groove
machined into the cylinder half of the hardware. Sealing
is achieved by squeezing the bead into a properly sized
groove (see table at bottom of page). The cylinder and
bonnet can then be designed to make positive contact when
assembled, eliminating the need for a closely controlled
assembly torque. It also reduces the overall diameter
of the diaphragm, reducing the hardware diameter. |
 |
 |
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
|
 |
|
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
|
± .003
|
0.08 ±
|
|
|
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
| | |
