Company Profile
As one of the leading mechanical seals manufacturer in China, we can manufacture full range of mechanical seal: component seals, metal bellows seals, cartridge seals and split seals and dry gas seals.
Structure Description:
Equivalent to Jonhcrane 680
Welded metal bellows design
Operating Limits:
Temperature: -20---220ºC
Speed: 20m/s
Pressure: 25bar
Standard size: 18-100mm/0.75''-4.0''
Material:
Seal ring: Car, Sic, Ssic, TC
Secondary seal: NBR, EPDM, FKM, Kalrez etc.
"Spring and Metal parts: 304, 316, AM350, HAST. C, Inconel 718, Titanium"
The SS680 is the ideal seal for general-purpose applications. Its rotating Alloy-20 bellows provide corrosion resistance in a broad range of corrosive media. Its cost-effective design, combined with a reliable performance history, has made the SS680 a standard for low-temperature applications found in the chemical, water and wastewater, pulp and paper, and utility industries. The seal is available with hard faces for abrasive applications and a wide range of elastomers to cover a broad range of applications.
| SS-680 Dimentions(mm) |
| A |
B |
C |
| 18 |
32.0 |
27.5 |
| 20 |
33.3 |
27.5 |
| 22 |
36.0 |
27.5 |
| 24 |
38.1 |
30.0 |
| 25 |
39.0 |
30.0 |
| 28 |
42.0 |
32.5 |
| 30 |
44.0 |
32.5 |
| 32 |
46.0 |
32.5 |
| 33 |
47.0 |
32.5 |
| 35 |
49.2 |
32.5 |
| 38 |
52.4 |
34.0 |
| 40 |
55.6 |
34.0 |
| 43 |
58.7 |
34.0 |
| 45 |
58.7 |
34.0 |
| 48 |
61.9 |
34.0 |
| 50 |
65.1 |
34.5 |
| 53 |
68.3 |
34.5 |
| 55 |
71.0 |
34.5 |
| 60 |
74.6 |
39.5 |
| 65 |
84.1 |
39.5 |
| 70 |
87.3 |
45.0 |
| 75 |
95.3 |
45.0 |
| 80 |
98.4 |
44.5 |
| 85 |
104.8 |
44.5 |
| 90 |
108.0 |
49.5 |
| 95 |
114.3 |
49.5 |
| 100 |
120.7 |
49.5 |
| 105 |
131.7 |
48.3 |
| 110 |
138.1 |
48.3 |
| 115 |
144.5 |
48.3 |
| SS-680 Dimentions(mm) |
| A |
B |
C |
| 0.750 |
1.312 |
1.250 |
| 0.875 |
1.437 |
1.250 |
| 0.937 |
1.500 |
1.250 |
| 1.000 |
1.562 |
1.250 |
| 1.125 |
1.687 |
1.250 |
| 1.250 |
1.812 |
1.312 |
| 1.375 |
1.937 |
1.437 |
| 1.500 |
2.062 |
1.437 |
| 1.625 |
2.187 |
1.437 |
| 1.750 |
2.312 |
1.437 |
| 1.875 |
2.437 |
1.500 |
| 2.000 |
2.562 |
1.500 |
| 2.125 |
2.687 |
1.500 |
| 2.250 |
2.812 |
1.562 |
| 2.375 |
2.937 |
1.562 |
| 2.500 |
3.187 |
1.562 |
| 2.625 |
3.312 |
1.625 |
| 2.750 |
3.437 |
1.625 |
| 2.875 |
3.625 |
1.687 |
| 3.000 |
3.750 |
1.687 |
| 3.125 |
3.875 |
1.750 |
| 3.250 |
4.000 |
1.750 |
| 3.375 |
4.125 |
1.750 |
| 3.500 |
4.250 |
1.875 |
| 3.625 |
4.375 |
1.875 |
| 3.750 |
4.500 |
1.875 |
| 3.875 |
4.625 |
1.875 |
| 4.000 |
4.750 |
1.875 |
| 4.250 |
5.187 |
1.903 |
| 4.500 |
5.438 |
1.903 |
| 4.750 |
5.688 |
1.903 |
| 5.000 |
5.938 |
1.903 |
| 5.250 |
6.213 |
1.903 |
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