Page 141 - GarlockFluidSealing2010

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Styles RW, RWI Dimensions
1/4" to 24" Flanges
Inner
Sealing Element
Outer
Size
Ring
Ring
NPS
Inside (A)
Inside (B) Outside (C) Outside (D)
Diameter
Diameter
Diameter
Diameter
1/4*
—
0.50
0.88
1.75
1/2
0.56
0.75
1.25
2.13
3/4
0.81
1.00
1.56
2.63
1
1.06
1.25
1.88
2.88
1-1/4
1.50
1.88
2.38
3.25
1-1/2
1.75
2.13
2.75
3.75
2
2.19
2.75
3.38
4.38
2-1/2
2.62
3.25
3.88
5.13
3
3.19
4.00
4.75
5.88
3-1/2*
—
4.50
5.25
6.50
4
4.19
5.00
5.88
7.13
4-1/2*
—
5.50
6.50
7.75
5
5.19
6.13
7.00
8.50
6
6.19
7.19
8.25
9.88
8
8.50
9.19
10.38
12.13
10
10.56
11.31
12.50
14.25
12
12.50
13.38
14.75
16.63
14
13.75
14.63
16.00
19.13
16
15.75
16.63
18.25
21.25
18
17.69
18.69
20.75
23.50
20
19.69
20.69
22.75
25.75
24
23.75
24.75
27.00
30.50
Inner
Sealing Element
Outer
Size
Ring
Ring
NPS
Inside (A)
Inside (B) Outside (C) Outside (D)
Diameter
Diameter
Diameter
Diameter
1/4*
­—
0.50
0.88
1.75
1/2
0.56
0.75
1.25
1.88
3/4
0.81
1.00
1.56
2.25
1
1.06
1.25
1.88
2.63
1-1/4
1.50
1.88
2.38
3.00
1-1/2
1.75
2.13
2.75
3.38
2
2.19
2.75
3.38
4.13
2-1/2
2.62
3.25
3.88
4.88
3
3.19
4.00
4.75
5.38
3-1/2*
—
4.50
5.25
6.38
4
4.19
5.00
5.88
6.88
4-1/2*
—
5.50
6.50
7.00
5
5.19
6.13
7.00
7.75
6
6.19
7.19
8.25
8.75
8
8.50
9.19
10.38
11.00
10
10.56
11.31
12.50
13.38
12
12.50
13.38
14.75
16.13
14
13.75
14.63
16.00
17.75
16
15.75
16.63
18.25
20.25
18
17.69
18.69
20.75
21.63
20
19.69
20.69
22.75
23.88
24
23.75
24.75
27.00
28.25
Class 150
Class 300
* ASME B16.20 does not include dimensions for NPS 1/4, 3-1/2 or
4-1/2, or Class 400 fanges up to NPS 3 and Class 900 fanges up to
NPS 2-1/2. Dimensions in inches.
RW
!
Inner Ring I.D.
"
Sealing Element I.D.
#
Sealing Element O.D.
$
Centering (Outer) Ring O.D.
ASME B16.20 Gaskets for
ASME B16.5 Flanges
RWI
D-23
Notes:
1. Inner rings are required for all PTFE gaskets and for Class 900
gaskets, NPS 24; Class 1500 gaskets, NPS 12 through NPS 24;
and Class 2500 gaskets, NPS 4 through NPS 12 (see ASME B16.20
code, 3.2.5).
2. The gasket outside diameter tolerance for NPS 1/2 through NPS 8 is
±0.03"; for NPS 10 through NPS 24, +0.06", –0.03".
3. The gasket inside diameter tolerance for NPS 1/2 through NPS 8 is
±0.016"; for NPS 10 through NPS 24, ±0.03".
4. The centering ring outside diameter tolerance is ±0.03".
5. There are no Class 400 fanges in NPS 1/2 through NPS 3 (use Class
600), Class 900 fanges in NPS 1/2 through NPS 2-1/2 (use Class
1500), or Class 2500 fanges NPS 14 and larger.