Rheem-Ruud 61-26018-91 Expansion Valve

The Rheem-Ruud 61-26018-91 is a high-performance 4-ton expansion valve designed specifically for R-22 refrigerant systems. This RotoX TXV internal sensing thermostatic expansion valve features a 3/8-inch inlet and a 30-inch capillary tube, ensuring precise superheat control across varying evaporator loads. Engineered as an OEM Rheem replacement part, it maintains system efficiency by modulating refrigerant flow based on heat load demands, preventing liquid slugging and compressor damage. The R-22 thermal expansion valve utilizes a threaded mechanical connection for a secure fit within the refrigeration circuit. For contractors performing retrofits or repairs, the 61-26018-91 expansion valve provides the necessary sensitivity to maintain optimal suction pressure. This valve is indispensable for restoring the factory-specified cooling capacity in legacy residential and commercial split systems, ensuring consistent refrigerant metering and long-term system stability under high-ambient conditions.

Key Benefits

• Precise Refrigerant Metering: Optimized for R-22 AC systems to maintain target superheat and maximize evaporator coil heat transfer.
• RotoX Design: Features a specialized internal sensing mechanism for reliable HVAC TXV troublehooting and performance.
• OEM Compatibility: Direct-fit Rheem-Ruud replacement part ensures seamless integration with existing liquid line components.
• Durable Construction: Built to withstand high-pressure fluctuations and vibration common in 4-ton cooling applications.
• Extended Capillary Reach: The 30-inch capillary tube allows for flexible bulb placement on the suction line for accurate temperature sensing.

Common Questions

Is the Rheem-Ruud 61-26018-91 compatible with R-410A?
No, this specific TXV is calibrated exclusively for R-22 systems. Using it with R-410A will result in incorrect metering due to different pressure-temperature relationships.

What are the signs of a failing 4-ton expansion valve?
Common symptoms include frost on the evaporator coil, high suction superheat, or the compressor cycling on thermal overload due to refrigerant starvation.

Does this TXV include the sensing bulb mounting hardware?
This part includes the 30-inch capillary and sensing bulb; however, it is recommended to use copper sensing bulb straps to ensure a consistent thermal bond with the suction header.

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.