Parker 040726-01 Valve

The Parker 040726-01 HCAE-5-VX100A is a hard shut-off thermostatic expansion valve engineered for precision refrigerant metering in residential and light commercial AC and heat pump systems. This 5-ton TXV features a Chatleff-style fitting, ensuring a secure, leak-resistant connection specifically designed for high-pressure R-410A applications. It utilizes an externally equalized design with a 1/4" OD connection to maintain optimal evaporator efficiency by compensating for pressure drops across the coil. The stainless steel power element and integrated check valve functionality make this an essential component for bi-flow heat pump operations, preventing liquid slugging and maintaining precise superheat control across varying load conditions. For technicians performing retrofits or coil replacements, this OEM Parker sporlan replacement provides the reliability required for systems utilizing subcooled liquid and varying ambient temperatures.

• Chatleff fitting configuration allows for direct, secure installation without the need for additional soldering or adapters on compatible coils.
• Built-in internal check valve enables seamless bi-flow operation, making it suitable for both cooling-only and heat pump cycles.
• Externally equalized design ensures accurate superheat maintenance, maximizing evaporator heat transfer area.
• Durable stainless steel diaphragm and power element provide excellent resistance to corrosion and mechanical fatigue.
• Optimized for R-410A refrigerant to handle higher operating pressures while maintaining stable performance.

Is the Parker 040726-01 compatible with R-22 systems?
No, this specific model is calibrated and orifice-sized specifically for R-410A refrigerant and should not be used in R-22 applications.

Does this valve require an external equalizer line connection?
Yes, the HCAE-5-VX100A is an externally equalized valve and requires the 1/4" equalizer line to be connected to the suction line for proper sensing.

Can this TXV be used on a 3-ton evaporator coil?
This is a 5-ton capacity TXV. Installing an oversized valve can lead to hunting and liquid floodback; always match the valve tonnage to the evaporator coil capacity.

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.