❄️ VAL8580 Trane 5-Ton R-22 Thermostatic Expansion Valve (TXV) – 500 PSI Flare Connection

🧭 Product Overview

The Trane VAL8580 Thermostatic Expansion Valve (TXV) is engineered for R-22 refrigerant systems to maintain precise refrigerant metering into the evaporator coil. Designed for 5-ton capacity HVAC systems, this TXV provides optimal system balance, energy efficiency, and stable superheat control under varying load conditions.

Built to Trane OEM standards, the VAL8580 ensures reliable performance and long service life in demanding applications, supporting both residential and light commercial air conditioning systems rated up to 500 PSI.

✅ Key Features

• ✅ Thermostatic Expansion Valve (TXV) for precise refrigerant flow

• ✅ Compatible with R-22 refrigerant systems

• ✅ 5-Ton capacity ideal for mid-to-large Trane HVAC units

• ✅ 500 PSI max operating pressure – durable and pressure-rated for reliability

• ✅ 1/2" flare connections for easy, leak-resistant installation

• ✅ Maintains consistent superheat and cooling efficiency

• ✅ OEM replacement designed to Trane factory specifications

📊 Technical Specifications

⚠️ Common Symptoms / When to Replace

• ❌ Evaporator coil freezing or frost buildup

• ❌ Poor cooling or uneven temperature performance

• ❌ System short cycling or compressor strain

• ❌ High superheat readings or low suction pressure

• ❌ Refrigerant leaks or corrosion near valve body

❓ Frequently Asked Questions (FAQ)

Q: What refrigerant is compatible with this TXV?
A: This model is designed specifically for R-22 refrigerant systems.

Q: What system capacity is supported?
A: The valve supports 5-ton HVAC systems.

Q: What is the maximum working pressure?
A: The valve is rated up to 500 PSI.

Q: What are the connection details?
A: 1/2" flare connections for quick installation.

Q: Is this an OEM Trane component?
A: ✅ Yes. The VAL8580 is an OEM Trane TXV for R-22 systems.

🛒 Shopping Tips

• 🧩 Match the refrigerant type — This valve is for R-22 only. Using it with R-410A or other refrigerants will cause system imbalance.

• 🔧 Check tonnage compatibility — Always match your system’s BTU/ton rating (5 tons for this valve).

• 🧰 Inspect connection type and size — Ensure your existing line set uses flare fittings and the same diameter.

• 🧊 Replace filter drier when changing a TXV to prevent contamination.

• ⚙️ Pair with correct sensing bulb location on the suction line for best performance.

• 💡 Keep extra insulation for the sensing bulb to maintain accurate readings.

• 🧾 Cross-check model number on your Trane unit before ordering for perfect fitment.