(3) Service criteria

(a) Packing materials
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(b) Characteristics of sliding materials (flexible materials) for mechanical seals
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(c) Characteristics of sliding materials (hard materials) for mechanical seals
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(d) Sliding materials and service classifications
The typical combinations of sliding materials for EVBM and EOBM models are summarized. Select a proper combination according to the relationship between applicable fluid and price as well as between pressure and shaft speed limit.
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Note (1) May also be used for fresh water including boiler cleaning water.
Remarks : 1. When self-fluxing alloy spraying, ceramic coating, or cemented carbide press-fitting is used for sliding ring, the base material should be SUS304.
2. For a fluid to which elastomer O-ring can be used, a driven ring of cemented carbide press-fitting can be more economical than cemented carbide solid.
3. Materials other than those listed in this table are also available.


(e) Service limits and corresponding seal types by equipment name
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