## Seal ring Applicans: NOK Corporation, Japan This patent describes a design of butt joint for pistons rings which from the description are used as shaft seals. The rings have a stepped butt joint and one half of the joint has a surface that slopes in the circumferential direction and is engaged
โฆ LIBER โฆ
Flexible floating ring seal arrangement for rotodynamic pumps
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 323 KB
- Volume
- 2007
- Category
- Article
- ISSN
- 1350-4789
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## Long history John Crane developed the first non-contacting, dry-running gas seal 30 years ago, according to Hosanna. He says that since then the Type 28 seals have been used in thousands of applications around the world. Many of the seals have been performing for 10 years or more.
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