Parker 040725-01 Valve

The Parker 040725-01 is a high-performance HCAE-3-VX100H Chatleff TXV designed for precision refrigerant metering in high-capacity residential and light commercial AC systems. This externally equalized thermostatic expansion valve features a specific Chatleff fitting configuration, ensuring a leak-resistant connection and streamlined installation for service technicians. Engineered to manage superheat effectively across varying load conditions, the Parker HCAE series utilizes a balanced port construction to mitigate hunting and maintain evaporator efficiency. Whether you are performing a TXV replacement or a new system integration, this 3-ton capacity valve provides the reliable pressure drop and flow control required for R-410A applications. Its robust design focuses on long-term mechanical stability in high-pressure environments, making it a standard choice for contractors prioritizing system uptime and accurate refrigerant charge management.

• Precision Superheat Control: Maintains optimal evaporator performance by preventing liquid slugging and maximizing heat transfer.
• Chatleff Connection: Simplifies field installation with a secure, industry-standard threaded interface.
• External Equalization: Compensates for pressure drops through the evaporator coil, ensuring accurate valve response.
• Optimized for R-410A: Specifically calibrated for high-pressure synthetic refrigerants used in modern cooling cycles.

What are the symptoms of a failing Parker 040725-01 valve?
Technicians typically observe low suction pressure, high superheat at the evaporator outlet, or frost formation on the expansion valve body, indicating a restricted or stuck orifice.

Can this Chatleff TXV be used on a flare or sweat connection?
No, this specific model features a Chatleff nut and seal; attempting to adapt it to other connection types without proper transitions may compromise system integrity.

Why is the external equalizer line critical for this model?
The external equalizer allows the valve to sense the true pressure at the evaporator outlet, preventing the valve from "starving" the coil during high-load operations.

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.