York S1-025-42691-000 Expansion Valve
The York S1-025-42691-000 Expansion Valve is a critical metered flow component designed specifically for high-efficiency R-410A cooling systems. This TXV valve utilizes a 3/8" x 3/8" ODF (Open Directional Flow) sweat connection, ensuring a leak-resistant, hermetic seal within the liquid line. Engineered to maintain precise superheat at the evaporator coil, this thermal expansion valve adjusts refrigerant flow based on heat load, preventing liquid slugging and protecting the compressor from premature failure. For contractors performing a York HVAC repair, this OEM replacement part provides the exact pressure drop characteristics and orifice sizing required to restore factory-spec SEER ratings. Its robust construction handles the high operating pressures of R410A refrigerant while ensuring consistent thermal regulation across fluctuating ambient temperatures.
Key Benefits for Technicians- Precise Superheat Control: Automatically modulates refrigerant flow to optimize evaporator efficiency and prevent compressor floodback.
- OEM Compatibility: Exact York replacement part ensures proper fitment and eliminates the need for field modifications or line-set adjustments.
- Durable ODF Connections: 3/8-inch sweat fittings provide a secure, high-pressure bond suitable for professional brazing techniques.
- Optimized for R-410A: Internally balanced and calibrated specifically for the thermodynamic properties of modern high-pressure refrigerants.
Is this TXV compatible with older R-22 systems?
No, this valve is strictly engineered for R-410A systems. The internal spring pressures and orifice diameter are calibrated for the higher pressure profiles of 410A and will not function correctly in an R-22 circuit.
Does this valve require an external equalizer line?
The York S1-025-42691-000 is designed to match specific evaporator configurations; always verify the presence of an equalizer port on the existing suction line before brazing to ensure proper pressure sensing.
What is the best way to prevent damage during brazing?
Always wrap the valve body in a wet rag or use a heat-sink paste during installation. Excessive heat can damage the internal needle, diaphragm, or teflon seals, leading to immediate component failure.
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.
Original: $202.59
-65%$202.59
$70.91York S1-025-42691-000 Expansion Valve
The York S1-025-42691-000 Expansion Valve is a critical metered flow component designed specifically for high-efficiency R-410A cooling systems. This TXV valve utilizes a 3/8" x 3/8" ODF (Open Directional Flow) sweat connection, ensuring a leak-resistant, hermetic seal within the liquid line. Engineered to maintain precise superheat at the evaporator coil, this thermal expansion valve adjusts refrigerant flow based on heat load, preventing liquid slugging and protecting the compressor from premature failure. For contractors performing a York HVAC repair, this OEM replacement part provides the exact pressure drop characteristics and orifice sizing required to restore factory-spec SEER ratings. Its robust construction handles the high operating pressures of R410A refrigerant while ensuring consistent thermal regulation across fluctuating ambient temperatures.
Key Benefits for Technicians- Precise Superheat Control: Automatically modulates refrigerant flow to optimize evaporator efficiency and prevent compressor floodback.
- OEM Compatibility: Exact York replacement part ensures proper fitment and eliminates the need for field modifications or line-set adjustments.
- Durable ODF Connections: 3/8-inch sweat fittings provide a secure, high-pressure bond suitable for professional brazing techniques.
- Optimized for R-410A: Internally balanced and calibrated specifically for the thermodynamic properties of modern high-pressure refrigerants.
Is this TXV compatible with older R-22 systems?
No, this valve is strictly engineered for R-410A systems. The internal spring pressures and orifice diameter are calibrated for the higher pressure profiles of 410A and will not function correctly in an R-22 circuit.
Does this valve require an external equalizer line?
The York S1-025-42691-000 is designed to match specific evaporator configurations; always verify the presence of an equalizer port on the existing suction line before brazing to ensure proper pressure sensing.
What is the best way to prevent damage during brazing?
Always wrap the valve body in a wet rag or use a heat-sink paste during installation. Excessive heat can damage the internal needle, diaphragm, or teflon seals, leading to immediate component failure.
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.
Product Information
Product Information
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Description
The York S1-025-42691-000 Expansion Valve is a critical metered flow component designed specifically for high-efficiency R-410A cooling systems. This TXV valve utilizes a 3/8" x 3/8" ODF (Open Directional Flow) sweat connection, ensuring a leak-resistant, hermetic seal within the liquid line. Engineered to maintain precise superheat at the evaporator coil, this thermal expansion valve adjusts refrigerant flow based on heat load, preventing liquid slugging and protecting the compressor from premature failure. For contractors performing a York HVAC repair, this OEM replacement part provides the exact pressure drop characteristics and orifice sizing required to restore factory-spec SEER ratings. Its robust construction handles the high operating pressures of R410A refrigerant while ensuring consistent thermal regulation across fluctuating ambient temperatures.
Key Benefits for Technicians- Precise Superheat Control: Automatically modulates refrigerant flow to optimize evaporator efficiency and prevent compressor floodback.
- OEM Compatibility: Exact York replacement part ensures proper fitment and eliminates the need for field modifications or line-set adjustments.
- Durable ODF Connections: 3/8-inch sweat fittings provide a secure, high-pressure bond suitable for professional brazing techniques.
- Optimized for R-410A: Internally balanced and calibrated specifically for the thermodynamic properties of modern high-pressure refrigerants.
Is this TXV compatible with older R-22 systems?
No, this valve is strictly engineered for R-410A systems. The internal spring pressures and orifice diameter are calibrated for the higher pressure profiles of 410A and will not function correctly in an R-22 circuit.
Does this valve require an external equalizer line?
The York S1-025-42691-000 is designed to match specific evaporator configurations; always verify the presence of an equalizer port on the existing suction line before brazing to ensure proper pressure sensing.
What is the best way to prevent damage during brazing?
Always wrap the valve body in a wet rag or use a heat-sink paste during installation. Excessive heat can damage the internal needle, diaphragm, or teflon seals, leading to immediate component failure.
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.
