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Mechanical Seals Factory offer pump seals, auto
cooling pump seals,
industrial pump seals, graphite
seal faces and
ceramic seal faces, etc.
Features of
john crane water pump mechanical seal 21-2 3/4"
1. Model: type 21
2. Size: 2 3/4"
3. Materials: carbon / ceramic / NBR
Working Conditions of
john crane water pump mechanical seal 21-2 3/4"
1. Pressure: ≤0.8Mpa
2. Speed: ≤10m/s
3. Temperature: ≤-20℃~150℃
Drawing and Size of
john crane water pump mechanical seal 21-2 3/4"
Model | d | D | D1 | L1 | L2 |
WJ21-2 3/4" | 69.8 | 92.58 | 88.9 | 15.9 | 49.4 |