Preliminary Considerations for Spring-Energized Seals

springsealsToday we’ll continue our look at spring-energized seals by exploring some of the preliminary considerations to made when working with these seals.

A spring energized PTFE seal is selected to fit an exact set of service conditions found in your application.

Gallagher Fluid Seals recommends conducting a review of the entire sealing environment. You should use the Engineering Action Request (EAR) form before selecting a seal design.

Evaluating the following check list will be beneficial to selecting a preliminary design.

Operating Conditions:

  • Pressure, typical
  • Temperature
  • Surface Speed
  • Lubrication
  • Radiation
  • Maintenance Cycle
  • Pressure – Max
  • Type of motion
  • Duty cycle
  • Coolant
  • Food Service
  • Safety factors

Media to be Sealed:

  • Water-based
  • Hydraulic fluids
  • Solvents
  • Acids
  • Vapors
  • Caustics
  • Abrasives
  • Oils
  • Greases
  • Steam
  • Fuels
  • Air
  • Dry gases

Hardware Design:

  • Gland shape
  • Surface finish
  • Installation
  • Dynamic alignment
  • Gland diameters
  • Hardness
  • Platings
  • Sideloading

Seal Performance Criteria:

  • Wear life
  • Leakage limit
  • Compatibility
  • Breakout friction
  • Running friction
  • Proof pressures

To learn more about spring-energized seals, please download Gallagher Fluid Seals’ new Spring Energized Seal Guide