EnDura® elastomers

The EnDura® range of elite oilfield elastomers has been specifically developed by PPE for use in downhole, surface and subsea oilfield equipment.

EnDura® offers excellent Explosive Decompression (ED) or Rapid Gas Decompression (RGD) resistance. The range includes material grades that provide the ultimate in chemical resistance and low temperature performance for use in Arctic conditions.

Key attributes

EnDura® has been developed for high performance sealing in critical energy applications. The materials in the EnDura® family are engineered to handle these rigorous thermal, chemical, and mechanical challenges.

Here are some key operational advantages:

EnDura® grades are tested to international RGD standards, such as:

  • TOTAL GS PVV 142
  • NORSOK M710 Annex B
  • NACE TM0297
  • ISO 23936-2

Sudden decompression events can lead to catastrophic seal failure with inferior sealing materials. EnDura® has been engineered to provide sustained resistance to RGD, which:

  • Increases seal life expectancy and integrity
  • Increases productivity through reduced maintenance and downtime
  • Improves the integrity of oilfield equipment, keeping your operators safer

EnDura® elastomers provide low temperature sealing capability down to -51°C (-60°F) and up to +250°C (+482°F)

Excellent mechanical strength is vital for oilfield seals, where durability, safety, and reliable sealing performance are critical for operators – and a failed seal can have severe economic and environmental consequences.

EnDura® seals can withstand HPHT environments without deformation, cracking, or extruding. They have also been developed to withstand the abrasion associated with oilfield equipment moving parts, including sand, mud and rock particles.

With better elastic recovery and fatigue resistance, EnDura® gives operators the confidence that any unscheduled downtime associated with their sealing system will be kept to an absolute minimum.

EnDura® elastomers have better chemical resistance than conventional RGD resistant grades and are compliant with many international standards for sour gas (H2S) resistance.

• NACE TM0187
• NORSOK M710 Annex A

EnDura® grades are tested to inte ational RGD standards, such as:

  • TOTAL GS PVV 142
  • NORSOK M710 Annex B
  • NACE TM0297
  • ISO 23936-2

Sudden decompression events can lead to catastrophic seal failure with inferior sealing materials. EnDura® has been engineered to provide sustained resistance to RGD, which:

  • Increases seal life expectancy and integrity
  • Increases productivity through reduced maintenance and downtime
  • Improves the integrity of oilfield equipment, keeping your operators safer

EnDura® elastomers provide low temperature sealing capability down to -51°C (-60°F) and up to +250°C (+482°F)

Excellent mechanical strength is vital for oilfield seals, where durability, safety, and reliable sealing performance are critical for operators – and a failed seal can have severe economic and environmental consequences.

EnDura® seals can withstand HPHT environments without deformation, cracking, or extruding. They have also been developed to withstand the abrasion associated with oilfield equipment moving parts, including sand, mud and rock particles.

With better elastic recovery and fatigue resistance, EnDura® gives operators the confidence that any unscheduled downtime associated with their sealing system will be kept to an absolute minimum.

EnDura® elastomers have better chemical resistance than conventional RGD resistant grades and are compliant with many inte ational standards for sour gas (H2S) resistance.

• NACE TM0187
• NORSOK M710 Annex A

Why choose PPE for oilfield elastomers?

Beyond the elastomer material itself, working with PPE also adds value in a number of ways at all stages in the design process and for on-going procurement.

  • Expert technical support both before and after sale
  • Design advice to optimize the seal design for the intended operating conditions
  • Unrivalled rapid manufacturing lead-times
  • Flexible and responsive manufacturing based on a cell-based operating model
  • Global sales and support coverage
EnDura brand banner, with a selection of EnDura products

High performance elastomers for the highest pressure environments

EnDura® products

We provide a wide selection of sealing solutions available in EnDura® elastomers, which are manufactured exclusively by PPE, for some of the most challenging, high pressure sealing applications in the world.

Elastomer O-Rings

Fully molded elastomer O-rings for critical sealing applications. Standard and custom sizes available.

X-Rings Quad Rings

X-rings offer an alternative sealing solution to O-rings for a wide range of reciprocating or rotary applications.

T-Seals

T-seals – with T-shaped cross section and two backup rings – offer an excellent sealing solution for static or dynamic applications.

Lip Seals

Energized lip seals comprise of a high modulus elastomer jacket and a low modulus elastomer O‑ring energizer.

Spring Seals

For applications where large clearance gaps or bi-directional pressures are a factor, consider the effectiveness and strength of a PPE spring seal.

FS Seals

FS seals are a double acting static seal designed for use as casing and tubing hanger seals in wellheads.

Metal End Cap Seals

PPE metal end cap seals are custom engineered elastomer-to-metal seals providing maximum extrusion resistance for wellheads.

Chevron Stacks

Chevron stack sets are multi-lip packings which are especially suited to mechanically-challenging conditions.

Custom Seals

PPE designs and manufactures custom molded rubber parts and bespoke engineered components to meet any sealing requirement.

Resources

Below are some of our most popular downloads relating to EnDura® materials.

If you require further information on any sealing topic, please check out the Resources section of this website.

Looking for more technical detail? Check out our Resources & Tools.

Need more help? Speak to one of our experts today.

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