Mechanical seal john crane
Type 2648
API 682-qualified, Dual Unpressurized Cartridge, Type “A” O-ring Pusher Seal Type 2648
The Type 2648 is a high-performance, low-emission cartridge seal designed to provide additional safety for hazardous applications and applications where the sealing environment needs to be controlled. Its inboard seal design uses the same low-emission/leakage technology as the Type 1648. The outboard seal provides additional containment in conjunction with an API Flush Plan 52
Product Description Type 2648
Type 1648 – Category 2, Type A, Arrangement 1 single cartridge seal. Available with either a fixed, floating or segmented bushing option and with either a single point or distributed flush arrangement.
Type 1648 – Category 3, Type A, Arrangement 1 single cartridge seal with segmented bushing and distributed flush standard. Provided with the appropriate documentation in accordance withAPI 682.
Type 2648 – Category 2, Type A, Arrangement 2 dual unpressurized cartridge seal. The outer seal provides additional containment in conjunction with an API Flush Plan 52.Type 2648 – Category 3, Type A, Arrangement 2 dual unpressurized cartridge seal provided with the appropriate documentation in accordance with API 682.
Type 3648 – Category 2, Type A, Arrangement 3 dual pressurized cartridge seal. The inner seal is double-balanced to provide a positive seal with pressure from either direction. The outer seal contains the barrier fluid using an API Flush Plan 53 or 54. Type 3648 – Category 3, Type A, Arrangement 3 dual pressurized cartridge seal provided with the appropriate documentation in accordance with API 682
Table Parameters Type 2648
| Temperature Limits | -40°F to 500°F/-40°C to 260°C |
|---|---|
| Pressure Limits | 1000 psi(g)/69 bar(g) |
| Speed Limits | 5000fpm/25m/s |
Features Type 2648
- California Residents: PROPOSITION 65 WARNING
- Qualification-tested per API 682
- Complies with API 682 technical design requirements
- Standard materials, per API 682
- Fits API 682 Table 1 and 2 seal chambers
- Computer-optimized, low-emission seal face designs
Recommended Applications Type 2648
- Process pumps
- Other rotating equipment