Housing Options - O Rings

            Contact Pacific Industrial Filtration.  General O Ring Characteristics:

Krystil Klear offers this data as a reference only and all material compatibilities should be verified prior to installation.

  • Buna - Effectively resists petroleum based oils and like hydraulic fluids.  Is not compatible with strong acids or ketones.  Temperature range is -64 to +275 degrees F.  Has a Shore A hardness of 70.
  • Ethylene, propylene - Effectively resists phosphates ester based hydraulic fluids, also offers a high abrasion resistance.  Works well with ketones and silicone based liquids. Is not compatible with petroleum fluids.  Temperature range is - 64 to +300 degrees F.  Has a Shore A hardness of 70.
  • Silicone Encansulated with FEP* - Silicone is similar to Viton with the exception of having a slightly lower compression set resistance.  It is more suitable for sensitive applications where lighter compressive forces are applied to energize the seal.  Temperature range of -65 to 450 degrees F. Has a Shore A hardness of 70.
  • Silicone Solid - Effectively resists temperature fluctuations and high alkaline liquids.  Is not compatible with ketones or most petroleum oils.  Temperature range of -65 to 450 degrees F.  Has a Shore A hardness of 70.
  • Teflon, Solid - Superior lubricity plus excellent chemical resistance for a wide range of applications.  Requires higher compressive force to energize the seal.  Temperature range of -300 to +500 degrees F.  Has a Shore D hardness of 60.
  • Viton Encapsulated with FEP* - A fluoroelastomer compound with a combination of exceptional mechanical properties and compression set resistance.  This particular core gives an o-ring excellent "memory" and the ability to recover rapidly from deformation.  This core has a Shore A hardness of 75 with a suggested operating temperature range of -10 to 300 degrees F in encapsulated applications.
  • Viton, Solid - Offers a wide spectrum of chemical compatibility and temperature range.  Works well with petroleum products, silicone fluids, solvents and most acids.  Is not for use wit ketones, methyl alcohol. Temperature range of - 31 to +400 degrees F. Has a Sore A hardness of 75.
* Encapsulated O-ring - Consists of two materials, a jacked and a core.  Krystil Klear offers the jacket, or external compound in FEP Teflon.  FEP is versatile when considering overall corrosion resistance, sealing capability and temperature; FEP is also an FDA approved material.  Our two core materials offered are Silicone and Viton. &nsp;The core material is the component with imparts "memory" to the encapsulated o-ring when it is subjected to compressive force.

Contact us for more information and custom price quotes.

liquid filtration o rings
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