Shaft seal design factors
5 IMPORTANT DESIGN FACTORS
When designing a shaft seal, you should consider these five important factors that will influence the final design of the shaft seal:
1. Equipment type and design
- The design of your product will greatly impact the ability to provide a self cleaning shaft seal.
- The design of your product will also affect the heat convection from the shaft seal, and therefore impact the seal life.
- The environment your products operate in (vibrations etc) affect seal performance.
2. Processed media
- Viscosity affects lubrication and leakage of shaft seals.
- The presence of any abrasive particles can be detrimental to involved parts.
- Media characteristics with regards to health and safety should be considered
3. Application details
- Applied pressure puts strain on involved parts and adds frictional heat.
- The temperature of processed media affects the liquid film as well as involved materials.
- The shaft speed impacts the liquid film as well as frictional heat.
4. Materials of construction
- Shaft seal materials will affect the function and life of mechanical shaft seals. Therefore it’s important to consider friction, wear and corrosion resistance during seal design.
- Legislation, directives, standards, guidelines, etc., may all have to be met.