York S1-025-35350-000 Expansion Valve

The York S1-025-35350-000 is an OEM 5 ton thermostatic expansion valve engineered for critical refrigerant metering in R-22 HVAC systems. Featuring standard 3/8 x 3/8 connections, this TXV ensures precise superheat control across varying load conditions, protecting the compressor from liquid slugging while maximizing evaporator efficiency. The 30 inch capillary tube provides the necessary reach for flexible bulb mounting on the suction line, allowing for accurate thermal sensing and immediate response to pressure changes. Built to meet the rigid specifications of genuine York replacement parts, this valve facilitates optimal heat transfer by maintaining a consistent pressure drop and regulating mass flow. For contractors servicing older 5-ton split systems or packaged units, this assembly is a direct-fit solution designed to restore factory-spec cooling performance and operational reliability. Ensure your system remains within the correct subcooling and superheat parameters by utilizing this high-grade metering device for all heavy-duty residential and light commercial repair applications.

• Precise Mass Flow Regulation: Maintains exact superheat levels to prevent evaporator flooding and ensure maximum thermal exchange efficiency.
• OEM Compatibility: A genuine York S1-025-35350-000 replacement ensuring mechanical alignment and proper thread sizing for 3/8-inch lines.
• Durable 30" Capillary: Long-reach sensing lead allows for professional bulb positioning on larger suction lines common in 5-ton installations.
• Optimized for R-22: Calibrated specifically for the pressure-temperature characteristics of R-22 refrigerant circuits.
• System Protection: Acts as a safeguard against liquid refrigerant returning to the compressor, extending the service life of high-cost components.

What are the connection specifications for this TXV?
This valve features 3/8" ODM (Outer Diameter Male) x 3/8" ODF (Outer Diameter Female) connections, standard for most 5-ton York evaporator coils.

Is the sensing bulb easy to install in tight spaces?
Yes, the 30-inch capillary tube provides sufficient length to secure the bulb at the 4 or 8 o’clock position on the suction line, even in compact air handler cabinets.

Can this valve be used with R-410A systems?
No, this specific model is calibrated for R-22 refrigerant only. Using it with R-410A will result in improper metering due to different operating pressures.

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.