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Low Temperature, General Duty Alloy-20 Metal Bellows Shaft Seal As John Crane 680 Type
Product description
Metal Bellow Seal John Cran 680
Features
Leader in Bellows Sealing Technology
Sealol Low-Temperature and High-Temperature bellows seals assure low emissions and optimized Mean-Time-Between-Planned-Maintenance (MTBPM).
Superior Bellows Design
These seals are manufactured with a 45º tilt edge at the bellows inside diameter to disperse stresses and maximize operating life.
Superior Plate Shape
The plate shape used by John Crane Sealol is called a nesting ripple. With a three-sweep radius, this plate design allows the bellows device to be flexed repeatedly without the metal being stressed beyond its endurance limit.
Self-Cleaning Design
Rotating bellows throw off suspended particles that clog spring-type seals. This self-cleaning action eliminates the need for external flushing, filters or cyclone separators and their associated costs.
World-class Bellows Manufacture
Our bellows production facility has an outstanding manufacturing process with state-of-the-art stamping,welding and testing technology.
Application Flexibility
A wide range of metallurgies, face combinations and packing materials are used to seal a variety of demanding applications.
Advanced Research and Development
The Sealol bellows incorporate all of the design features resulting from key engineering competencies, such as metallic thin shell methodology, tribology and fluid sealing technology, and thin film/fluid mechanics.
Operational conditions: |
Materials |
||
temperature |
-75℃ to +200℃ |
Stationary ring |
U2,Q2 |
Pressure |
<<2.0mpa< div=""> |
Rotary ring |
B,Q2,U2 |
Speed |
<<23m/s |
Secondary seal |
V,E,P |
Bellow |
T6 |
Spring and metal parts |
F,G,M |
Application: Oil,light hydrocarbon,aromatic Hydrocarbon,organic solvents,weakacids,ammonia etc | |||
SIZE |
d |
D3 |
L1 |
SIZE |
d |
D3 |
L1 |
0.750 |
0.750 |
1.312 |
1.250 |
18 |
18 |
32.00 |
27.7 |
0.875 |
0.875 |
1.437 |
1.250 |
20 |
20 |
33.30 |
27.7 |
0.937 |
0.937 |
1.500 |
1.250 |
22 |
22 |
36.00 |
27.7 |
1.000 |
1.000 |
1.562 |
1.250 |
24 |
24 |
38.10 |
30.2 |
1.125 |
1.125 |
1.687 |
1.250 |
25 |
25 |
39.00 |
30.2 |
1.250 |
1.250 |
1.812 |
1.312 |
28 |
28 |
42.00 |
32.7 |
1.375 |
1.375 |
1.937 |
1.437 |
30 |
30 |
44.00 |
32.7 |
1.500 |
1.500 |
2.063 |
1.437 |
32 |
32 |
46.00 |
32.7 |
1.625 |
1.625 |
2.187 |
1.437 |
33 |
33 |
47.00 |
32.7 |
1.750 |
1.750 |
2.312 |
1.437 |
35 |
35 |
49.20 |
32.7 |
1.875 |
1.875 |
2.437 |
1.500 |
38 |
38 |
52.40 |
34.2 |
2.000 |
2.000 |
2.562 |
1.500 |
40 |
40 |
55.60 |
34.2 |
2.125 |
2.125 |
2.687 |
1.500 |
43 |
43 |
58.70 |
34.2 |
2.250 |
2.250 |
2.812 |
1.562 |
45 |
45 |
58.70 |
34.2 |
2.375 |
2.375 |
2.937 |
1.562 |
48 |
48 |
61.90 |
34.2 |
2.500 |
2.500 |
3.187 |
1.562 |
50 |
50 |
65.10 |
34.7 |
2.625 |
2.625 |
3.312 |
1.625 |
53 |
53 |
68.30 |
34.7 |
2.750 |
2.750 |
3.437 |
1.625 |
55 |
55 |
71.00 |
34.7 |
2.875 |
2.875 |
3.625 |
1.687 |
60 |
60 |
74.60 |
39.7 |
3.000 |
3.000 |
3.750 |
1.687 |
65 |
65 |
84.10 |
39.7 |
3.125 |
3.125 |
3.875 |
1.750 |
70 |
70 |
87.30 |
45.2 |
3.250 |
3.250 |
4.000 |
1.750 |
75 |
75 |
95.30 |
45.2 |
3.375 |
3.375 |
4.125 |
1.750 |
80 |
80 |
98.40 |
44.7 |
3.500 |
3.500 |
4.250 |
1.875 |
85 |
85 |
104.80 |
44.7 |
3.625 |
3.625 |
4.375 |
1.875 |
90 |
90 |
108.00 |
49.7 |
3.750 |
3.750 |
4.500 |
1.875 |
95 |
95 |
114.30 |
49.7 |
3.880 |
3.880 |
4.625 |
1.875 |
/ |
/ |
/ |
/ |
4.000 |
4.000 |
4.750 |
1.875 |
/ |
/ |
/ |
/ |
Metal Bellow Seal
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