York S1-022-08919-700 Expansion Valve

The York S1-022-08919-700 Expansion Valve is a critical component for maintaining precise superheat control in high-capacity cooling systems. This 8-ton R22 TXV features a straight body design with 1/2" x 5/8" sweat connections, ensuring a secure, leak-resistant fit during field installation. As a direct replacement for S1-022-08922-700, this externally equalized thermal expansion valve utilizes a 1/4" SAE flare equalization line to accurately sense evaporator pressure, preventing hunting and protecting the compressor from liquid slugging. The 30" capillary tube provides sufficient length for flexible sensing bulb placement on the suction line, optimizing thermal response across varying load conditions. Engineered for durability in demanding HVACR environments, this York OEM replacement part ensures the refrigeration cycle operates at peak volumetric efficiency. Contractors should verify the internal port sizing and superheat settings to match original equipment specifications for R22 heat pump or air conditioning applications.

Key Benefits

• Direct OEM Compatibility: Verified S1-022-08919-700 drop-in replacement for obsolete S1-022-08922-700 units.
• Optimized R22 Metering: Specifically calibrated for 8-ton R22 capacity to maintain correct refrigerant flow and evaporator loading.
• Precise Pressure Balance: 1/4" external equalization compensates for pressure drops across the evaporator coil for stable operation.
• Robust Construction: Features high-grade brass sweat connections and a durable power assembly for long-term reliability in the field.
• Flexible Installation: Integrated 30-inch capillary allows for proper bulb positioning to ensure accurate temperature sensing.

Common Questions

Is the York S1-022-08919-700 compatible with R410A systems?
No, this specific thermal expansion valve is calibrated exclusively for R22 refrigerant power assemblies and should not be used in R410A high-pressure systems.

Does this TXV include the sensing bulb mounting hardware?
This sweat-type expansion valve is typically supplied with the integrated power element and capillary tube; however, technicians should retain existing copper straps for optimal thermal contact on the suction line.

Can this 8-ton TXV replace a lower tonnage valve?
It is critical to match the tonnage exactly. Installing an 8-ton R22 expansion valve on a smaller system will result in over-feeding and potential compressor damage.

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.