KALREZ AS-568A O-RING K#005 COMPOUND:4079,AS-568A-005,2-005,2504-2476-01, 169387

The Kalrez AS-568A-005 O-Ring with Compound 4079 is a high-performance perfluoroelastomer seal engineered for demanding applications that require exceptional chemical resistance and high-temperature stability. Manufactured by Kalrez, a renowned brand within the DuPont portfolio, this AS568A standard o-ring provides reliable sealing in critical environments where conventional elastomers such as FKM or NBR degrade rapidly. Designed for static sealing applications, it ensures long service life in aggressive media.

Overview

Leakage and seal failure in harsh environments can lead to costly downtime, safety hazards, and product loss. The Kalrez AS-568A-005 O-Ring Compound 4079 addresses these challenges by delivering uncompromising performance in the presence of corrosive chemicals, elevated temperatures, and extreme pressures. This product is intended for use in chemical processing, oil and gas refining, semiconductor fabrication, aerospace systems, and pharmaceutical manufacturing. Whether employed in valve stems, pump housings, flanged joints, or quick-disconnect fittings, this o-ring maintains the integrity of the seal under steady and variable conditions. Its robust composition makes it ideal for applications involving acids, bases, hydrocarbons, steam, and high-purity fluids.

Key Features

• High-Temperature Capability: Kalrez Compound 4079 is formulated to maintain sealing force and elasticity at continuous elevated temperatures that would cause rapid failure in standard elastomers, ensuring reliable performance in thermal cycling environments.
• Broad Chemical Resistance: This compound withstands a wide variety of aggressive chemicals, including strong acids, bases, aromatic hydrocarbons, alcohols, and ketones, reducing the risk of swelling, extrusion, or embrittlement.
• Excellent Compression Set Resistance: The o-ring retains its original shape and sealing pressure over prolonged periods under compression, minimizing the frequency of replacement in static applications.
• Low Outgassing: Kalrez 4079 exhibits minimal outgassing, making it suitable for vacuum systems, clean rooms, and other environments where contamination must be controlled.
• Standard AS568A Dimensioning: The AS-568A-005 dash number conforms to the industry-standard AS568A specification, ensuring proper fit in standard o-ring grooves without custom machining.

Technical Specifications

• Brand: Kalrez (DuPont)
• Model / Dash Number: AS-568A-005
• Compound: 4079 (Perfluoroelastomer)
• Cross References: 2-005, 2504-2476-01, 169387
• AS568A Standard: Yes
• Condition: New, manufactured to original specifications

Applications

• Chemical Processing: Used in pumps, valves, and reactors handling corrosive chemicals such as sulfuric acid, sodium hydroxide, and chlorinated solvents.
• Oil & Gas: Provides sealing in wellhead equipment, flow control valves, and manifold components exposed to crude oil, natural gas, and drilling fluids.
• Semiconductor Manufacturing: Suitable for etch and deposition chambers where plasma resistance and low particle generation are critical.
• Aerospace: Employed in fuel systems, hydraulic actuators, and control valves that demand high temperature tolerance and fluid compatibility.
• Pharmaceutical Production: Used in steam-sterilizable equipment for aseptic processing of drug formulations and active ingredients.

Compatibility & Cross-References

This Kalrez AS-568A-005 O-Ring replaces legacy part numbers including 2-005, 2504-2476-01, and 169387. It is direct-fit for any standard AS568A groove of size -005. Always verify groove dimensions prior to installation. The product is a direct replacement for Kalrez original equipment parts and is compatible with seal designs from major OEMs that adhere to the AS568 standard.

FAQ

What is the temperature range for Kalrez Compound 4079?

Kalrez 4079 is designed for high-temperature service exceeding the capabilities of standard FKM and NBR compounds. It performs reliably in continuous high-heat environments common in chemical and oil and gas applications. For specific temperature limits, consult the Kalrez technical data sheet for Compound 4079.

Is this O-ring compatible with AS568A standard grooves?

Yes. The AS-568A-005 dash number indicates conformity to the AS568A standard. This ensures the o-ring seats properly in standard -005 grooves without modification.

What cross-reference numbers are applicable?

This product cross-references to part numbers 2-005, 2504-2476-01, and 169387. It also corresponds to Kalrez part number K#005 for Compound 4079.

Can this O-ring be used in vacuum applications?

Yes. Compound 4079 exhibits low outgassing characteristics, making it suitable for vacuum systems and clean environments where contamination from elastomeric materials must be minimized.