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Mechanical seal -- metal bellow seal -- Type GE11A/B
http://gemg.en.alibaba.com/product/1974872134-220740309/Welded_metal_Bellow_Seal_Flushing_Chemicals.html
Without dynamic secondary seal, it won’t be failure by the wear and tear between secondary seal and the axis. And it can be self-flushing due to the centrifugal force, which is caused by rotating.
Welded metal bellow flushing chemicals specification:
1).Standard:EN12756,GB/T6556
2). Material :
| Seal face | carbon, sic, TC |
| Secondary seal | NBR, Viton, EPDM, Kalrze, Graphite |
| metal parts | 304,316,Hast.C, 4J42 ,dual-phase steel, Ti |
| Bellow | 316,AM350,C-276,Alloy718 |
3). Design features:
| 1. | Single , balanced metal bellow flushing chemicals |
| 2. | G11B with the structure design flushing chemicals |
| 3. | Without dynamic secondary seal, self-flushing |
4). Operating limits:
| Temperature | -10~400°C |
| Speed | 23m/s |
| Pressure | 27 bar |
| Standard size | 16~100mm |
Mechanical seal --Metal bellows seals--G11A/B
