Spring-Energized PTFE Reciprocating Seals - Spring Reciprocating Seal

Reciprocating Seals

Why Spring-Energized PTFE Reciprocating Seals?

  • Spring energized seals replace conventional elastomeric O-rings and U-cups where the service conditions are beyond their operating capabilities
  • Self-Lubricating and can be used in dry environments
  • Wide Operating Temperature Range from -450°F to 600°F (-268°C to 315°C)
  • Pressure Conditions from High Vacuum to High Pressure (50,000 psi)*
  • Excellent Chemical Compatibility
  • Designed, Engineered, and Machined to fit
  • The Spring Enhances Performance by:
    • Allowing for tolerance variation
    • Overcoming thermal expansion/contraction
    • Compensating for wear to increase the useful life of the seal.

What are Duruseal® Spring-Energized Reciprocating Seals?

Duruseals® are composed of a Duron® seal jacket and an energizer. We offer a wide range of Duron® and energizer materials, as well as configurations to satisfy your conditions and parameters. For a complete proposal, submit a request for quote and we will respond, immediately.

Finger Spring Reciprocating Seal Duruseal® F: Finger Spring Reciprocating Seal

Finger spring reciprocating seals are suited for sealing viscuous media as the load is applied to the edge of the sealing lips.

Helical Spring Reciprocating Seal Duruseal® H: Helical Spring Reciprocating Seal

Helical spring reciprocating seals are suited for slow service, cold and vacuum service.

Angled Coil Spring Reciprocating Seal Duruseal® AC: Angled Coil Spring Reciprocating Seal

Angled coil spring seals are suited for low friction, small inside diameter cross sections and best at compensating for tolerance variation, and overcoming jacket wear.

Ribbon Spring Reciprocating Seal Duruseal® R: Ribbon Spring Reciprocating Seal

Ribbon Spring reciprocating seals are suited for extreme temperatures and hardware tolerance variations.

Elastomeric O-ring Duruseal® O: Duraz™ Elastomeric O-ring

Elastomeric O rings are best suited to minmize dead volume and provide a metal free seal.


Where are Spring-Energized PTFE Reciprocating Seals Used?

PSI Duruseals® are used in many industries and applications. Here are a few examples:

  • HPLC plunger pumps
  • Positive Displacement Pumps for Blood Analysis
  • Chemical injection pumps
  • Booster pumps
  • Safety valves
  • Gas compressors
  • Steam Control Valves
  • Plug valves
  • Turbochargers
  • Aircraft Controls and Instruments
  • Speed Brake Actuators

Contact our technical sales staff today to discuss your application's operating, hardware, and commercial conditions to develop the best performing seal solution.

* Pressure capability is based on operating temperature. Consult PSI engineering to get a recommendation or seal back-up chart.

Request A Quote Online Or Call Us At 866.429.2536