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| SJ21 |
| Replace John Crane type 21 |
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| Main Characteristics: |
| Pressure: 1.6Mpa |
| Speed: 15m/s |
| Temperature: -400C 」 2000C |
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| MATERIALS: |
| Seal Face: Carbon/SIC/TC |
| Stationary Ring: Ceramic/SIC/TC |
| Secondary Seals: NBR/EPDM/VITON |
| Spring&Other Parts: SS304/SS316 |
|
Model |
d |
D |
D1 |
L1 |
L2 |
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SJ21-1/2" |
12.7 |
23.88 |
25.4 |
7.92 |
20.82 |
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SJ21-5/8" |
15.875 |
26.7 |
31.75 |
10.29 |
22.43 |
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SJ21-3/4" |
19.05 |
31.09 |
34.93 |
10.29 |
22.43 |
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SJ21-7/8" |
22.225 |
33.4 |
38.1 |
10.29 |
24 |
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SJ21-1" |
25.4 |
43.18 |
41.28 |
11.1 |
25.6 |
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SJ21-1 1/8" |
28.575 |
46.28 |
44.45 |
11.1 |
27.17 |
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SJ21-1 1/4" |
31.75 |
49.4 |
47.63 |
11.1 |
27.17 |
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SJ21-1 3/8" |
34.925 |
52.58 |
50.8 |
11.1 |
28.78 |
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SJ21-1 1/2" |
38.1 |
55.8 |
53.98 |
11.1 |
28.78 |
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SJ21-1 5/8" |
41.275 |
62.2 |
60.33 |
12.7 |
35.13 |
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SJ21-1 3/4" |
44.45 |
66 |
63.5 |
12.7 |
25.13 |
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SJ21-1 7/8" |
47.625 |
66.6 |
66.68 |
12.7 |
38.3 |
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SJ21-2" |
50.8 |
73 |
69.85 |
12.7 |
38.3 |
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SJ21-2 1/8" |
53.975 |
73.3 |
76.2 |
14.27 |
43.05 |
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SJ21-2 1/4" |
57.15 |
78.41 |
79.38 |
14.27 |
43.05 |
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SJ21-2 3/8" |
60.325 |
82 |
82.55 |
14.27 |
46.22 |
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SJ21-2 1/2" |
63.5 |
84.87 |
85.73 |
14.27 |
46.22 |
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SJ21-2 5/8" |
66.675 |
88.4 |
85.73 |
15.9 |
49.4 |
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SJ21-2 3/4" |
69.85 |
92.58 |
88.9 |
15.9 |
49.4 |
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SJ21-2 7/8" |
73.025 |
94.85 |
95.25 |
15.9 |
52.57 |
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SJ21-3" |
76.2 |
101.9 |
98.43 |
15.9 |
52.57 |
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