Mechanical seal 4HDS
Technical Data Mechanical seal IS4HDS
- Operating pressure:
Up to 25 bar, dynamic
Up to 37.5 bar, static - Temperature: -20 °C to 150 °C
- Spring travel ± 3 mm to ± 4 mm
| Brand | KSB |
|---|
| 1 | Transport lock |
| 2 | Jacking thread |
| 412 | O-ring |
| 471 | Seal cover |
| 472 | Primary ring |
| 474 | Thrust ring |
| 475 | Mating ring |
| 477 | Spring for mechanical seal |
| 485 | Torque-transmitting element |
| 515 | Locking ring |
| 523 | Shaft sleeve |
| 542 | Throttling bush |
| 903 | Screw plug |
| 904.52/53/54 | Grub screw |
| 914.52 | Hexagon socket head cap screw |
| 932.52 | Circli |
Technical Description Mechanical seal 4HDS
To prevent dry running of the seal, the pressure at the seal must be equal to or higher than the ambient pressure. The seal chamber must be completely vented. To prevent vaporisation of the fluid in the sealing clearance, the difference between the actual pressure and the vapour pressure must be sufficiently large. Cooling of the
mating ring reduces the temperature and consequently lowers the vapour pressure.
The cooling quantity depends on the application parameters.
Applications Seal 4HDS
Feed water and condensate in power stations
Materials Seal 4EDCB8S
- Primary ring ”A“ carbon (A) / SiC-Si (Q2)
- Mating ring SiC-Si (Q2)
- Elastomers FKM (V) / FFKM (K)
- Springs 2.4610 (M)
- Other Components 1.4571 (G)
The single mechanical seal can be fitted in the pump in different versions and arrangements, depending on the application.
Available with various mating rings, e.g.: cooled mating ring.
Perfectly matched to the application range of the pump, this high-quality mechanical seal has a very long seal life and ensures reliable pump operation
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download IS4HDS mechanical seal catalog
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