York 028-12961-004 O-Ring

The York 028-12961-004 O-Ring is a precision-engineered sealing component designed specifically for high-pressure centrifugal chiller maintenance and industrial HVAC applications. This HVAC elastomer seal is fabricated from high-grade synthetic materials that provide superior resistance to refrigerant grade oils and chemical degradation. When servicing York compressor systems, installing a fresh 028-12961-004 ensures a tight vacuum seal and prevents high-pressure refrigerant leaks that can compromise system efficiency. This O-ring meets the exact dimensional tolerances required by Johnson Controls equipment, maintaining its durometer and structural integrity under extreme thermal cycling. For technicians performing a teardown or routine inspection, utilizing genuine York replacement parts is critical for maintaining internal pressure boundaries. This component effectively mitigates the risk of fluid bypass and environmental contamination, ensuring that the interface between mechanical housings remains airtight throughout the equipment's operational cycle.

Key Benefits

• Engineered for precise fitment in specific York centrifugal chiller assemblies.
• High-grade material composition prevents swelling and degradation when exposed to POE oils.
• Maintains a reliable seal under high-pressure and deep-vacuum conditions.
• Direct OEM replacement ensures compatibility with original housing tolerances.

Common Questions

What is the primary application for the York 028-12961-004?
This O-ring is primarily utilized as a static or dynamic seal within the internal galleries and housing interfaces of York industrial chillers.

Is this O-ring compatible with R-134a and R-123 refrigerants?
Yes, the elastomer is selected for its chemical stability when exposed to standard industrial refrigerants and their associated lubricants.

Can I reuse the existing O-ring during a compressor teardown?
It is standard technical practice to replace elastomer seals like the 028-12961-004 during any service that breaks the seal, as compression set and aging can prevent a proper reseal.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.