JOHN CRANE
John Crane Type 8-B1 Replacement Mechanical Seal
- SKU
- P-JO-M-0474
$120.00
Price includes GST.
Low stock: 2 left
Warehouse pickup available
- Weight
- 1.0 kg
Specifications
| Manufacturer | JOHN CRANE |
|---|---|
| Product type | SEALS & GASKETS |
| SKU | P-JO-M-0474 |
| Weight | 1.0 kg |
Description
John Crane Type 8-B1 replacement mechanical seal. Existing catalogue tags also record 8B-1, 8B1 and 1250GE; no shaft diameter or material configuration has been inferred from 1250GE.
The source describes a balanced, multi-spring, bidirectional design with a dynamic O-ring and gives these type/family limits:
- Temperature: −40 °C to +260 °C (−40 °F to +500 °F), depending on materials used
- Type 8B1 pressure: 76 bar gauge / 1100 psig
- Type 8B1T pressure: 21 bar gauge / 300 psig; this is a separate type reference, not the rating assigned to the listed 8-B1 seal
- Speed: up to 25 m/s / 5000 fpm
- Hydrostatic pressure limits: source refers to a separate chart, which is not included in the captured description
Actual configuration requires confirmation: These are source family figures, not verified operating limits for the supplied seal or every combination of pressure, temperature and speed. Confirm exact seal type/size, face and elastomer materials, equipment/fluid compatibility, condition and included components with MIS before ordering.