Four Seasons 39273 A/C Expansion Valve

Overview of Four Seasons Expansion Valve 39273

The Four Seasons Expansion Valve 39273 is designed specifically for the INFINITI Q45 to regulate refrigerant flow in the vehicle's air conditioning system. Crafted from durable brass and engineered for R134a refrigerant, this TXV type valve ensures precise superheat control for optimal A/C performance.

• Constructed from brass for durability and corrosion resistance
• Compatible with R134a refrigerant systems
• TXV (Thermostatic Expansion Valve) type for accurate refrigerant metering
• Superheat setting of -0.5 for efficient cooling regulation
• Designed for INFINITI Q45 models requiring precise A/C flow control

Detailed Product Description

The Four Seasons Expansion Valve 39273 is a thermostatic expansion valve (TXV) that plays a critical role in the air conditioning system of the INFINITI Q45. Its brass construction provides reliable resistance to wear and corrosion, ensuring long-term functionality. This valve is calibrated for use with R134a refrigerant, the standard for many modern automotive A/C systems. The superheat value of -0.5 indicates the valve’s ability to maintain a slight negative superheat, which helps optimize refrigerant flow and prevent compressor damage by ensuring the refrigerant is properly vaporized before entering the compressor.

As part of the Four Seasons Expansion Valve product line, this valve is engineered to meet specific OEM requirements for flow restrictors in automotive HVAC systems. The Expansion Valve line focuses on precise refrigerant metering to maintain system efficiency and comfort in vehicle cabins.

Applications and Common Issues Addressed

• Regulates refrigerant flow to maintain consistent cabin cooling
• Prevents compressor damage caused by liquid refrigerant flooding
• Helps resolve issues with fluctuating or insufficient A/C cooling performance
• Addresses problems related to improper superheat levels in the A/C system
• Supports system efficiency by ensuring correct refrigerant phase change

Installation Notes and Tips

• Ensure compatibility with INFINITI Q45 models before installation
• Follow manufacturer guidelines for refrigerant handling and system evacuation
• Inspect and clean related A/C components to prevent contamination
• Use proper tools to avoid damage to the valve or surrounding components
• Verify system pressure and superheat after installation for optimal performance

Quality Assurance and Warranty

Four Seasons Expansion Valve 39273 is manufactured to meet industry standards for automotive HVAC components. The brass construction and precise calibration contribute to reliable operation within the INFINITI Q45’s A/C system. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or supplier information for exact warranty terms.