Danfoss 067B3209 Thermostatic Element

The Danfoss 067B3209 is a premium TEX 12 Thermostatic element designed for precision superheat control in high-capacity refrigeration and air conditioning systems. Engineered for use with R22 and R407C refrigerants, this power element is a critical component for TE 12 expansion valves, ensuring stable evaporator performance across a broad temperature range of -40°F to +50°F. This specific model features external pressure equalization via a 1/4-inch flare connection, allowing the valve to compensate for pressure drops across the evaporator more accurately than internally equalized alternatives. The 197-inch (5 meter) capillary tube provides ample length for flexible sensing bulb placement, while the laser-welded stainless steel construction offers the structural integrity required to withstand a maximum working pressure of 400 psig. Whether you are performing a TXV element replacement or a new HVACR system installation, the 067B3209 (identical to 067B320900) delivers the technical reliability necessary to prevent liquid slugging and optimize refrigerant flow control.

Key Benefits

• Precise Superheat Regulation: Maintains optimal evaporator efficiency for R22/R407C systems under fluctuating load conditions.
• Durable Laser-Welded Design: Utilizes Danfoss’s signature welding technology for a hermetic seal and long-term diaphragm reliability.
• Extended Capillary Reach: A 5-meter capillary allows for versatile bulb mounting even in complex evaporator coil configurations.
• Wide Operating Envelope: Rated for a N-range temperature profile, suitable for both medium and low-temperature applications.
• OEM Compatibility: Drop-in replacement for 067B320900, ensuring a perfect fit with existing Danfoss TE 12 valve bodies.

Common Questions

Is this element compatible with R410A?
No, the 067B3209 is specifically charged for R22 and R407C. Using this element with R410A will result in incorrect superheat levels and potential system failure due to pressure differences.

What is the purpose of the 1/4" flare connection?
This is the external equalization port. It must be connected to the suction line near the sensing bulb to ensure the valve accounts for the actual pressure at the evaporator outlet, preventing underfeeding.

Does this element include a Maximum Operating Pressure (MOP) charge?
This specific model is a standard "N" range element without MOP, meaning it provides consistent control across the full temperature range without limiting suction pressure during startup.

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.