Mechanical seal with elastomer secondary seal 251, 211, 311
Fields:
Chemical and petrochemical Community facilities Food processing industry Metallurgy Petrochemicals transport Power engineering, NPP Pulp and paper industryFor pumps:
Imported АХ АХО АХП Кс КсВ НДв СВН СЦЛ Х
The seal is inteneded for sealing shafts pumping fluids that do not destruct elastomer secondary seals.
- Single seal
- Rotating flexible element
- Independent on direction of rotation
- Complied with DIN 24960, EN 12756
- Interchangeable with seals produced by foreign companies
251, 211
- Unbalanced
311
- Balanced
Sealing fluids
- Water
- Hydrocarbons
- Poor chemicals
- Poor solvents
- Fluids for cooling facilities
- Fluids with small impact on elastomer parts
- Products of food and paper industries with solids
Performance parameters
-
Pressure
16 kgf/cm2 / 211, 251
40 kgf/cm2 / 311 -
Temperature:
from —20° upto +120(160)°С
40 kgf/cm2 / 311 - Shaft diameter: 18-170 mm
Material design
- Metal parts: Stainless steel K
- Spring: Stainless steel K
- Secondary seal: Elastomer based on different rubber compounds
- Seal faces material: Carbon graphite impregnated, aluminium oxide, silicon graphite, silicon carbide
Heat exchanger design specific features
- Simple and compact design
- For plain shafts
- Application of a bellow allows the seal to operate in contaminated fluids without the risk of hanging of the flexible element
- Self-compensating system allows some tolerance in a mating ring installation
- Simplified mounting
What one needs to know when choosing a mechanical seal?
Equipment characteristics
Shaft diameter, temperature, pressure and fluid type are the main parameters when choosing a seal, but there are many other factors
Choice of a manufacturer is important
Lots of products that do not meet the required quality are being produced at the market now.
Service life extension
Operating time of component part is several times longer if the mechanical seal is selected correctly
5minuts