Danfoss 067B3352 Thermostatic Element

The Danfoss 067B3352 is a professional-grade TES 20 thermostatic element engineered for precision refrigerant metering in commercial refrigeration and air conditioning systems. Designed specifically for use with R404A and R507 refrigerants, this element is part of the modular TE 20 expansion valve series, allowing for easy capacity matching and field serviceability. It features external pressure equalization via a 1/4-inch flare connection, making it an essential component for systems utilizing liquid distributors to maintain optimal evaporator efficiency. With a temperature range of -40°F to 50°F (-40°C to 10°C) and a generous 3,000mm (118-inch) capillary tube, it provides the flexibility needed for remote bulb placement on large-diameter suction lines. The durable brass body and 400 psig (28 bar) maximum working pressure rating ensure reliable performance in demanding high-pressure environments. Technicians can rely on the adjustable superheat spindle for fine-tuning system balance and ensuring complete liquid vaporization before the refrigerant reaches the compressor.

• Modular Compatibility: Seamlessly integrates with the Danfoss TE 20 series valve bodies and orifice assemblies for versatile system configurations.
• Refrigerant Specific: Optimized for high-density R404A/R507 applications, ensuring accurate pressure-temperature response.
• External Equalization: Compensates for pressure drops across the evaporator and distributor, preventing premature valve closing.
• Extended Reach: The 3-meter capillary tube allows for the installation of the sensing bulb in the most effective thermal position.
• Precision Control: Features an adjustable superheat setting to prevent liquid slugging and maximize heat transfer.

Is the 067B3352 compatible with R22 systems?
No, this specific element is charged and calibrated for R404A and R507. Using it with R22 will result in incorrect superheat readings and poor system performance. For R22, a dedicated T2 or TE2 element must be selected.

What is the purpose of the 1/4" flare connection on the side?
This is the external pressure equalization port. It should be connected to the suction line near the sensing bulb to ensure the valve reacts to the actual pressure at the evaporator outlet, rather than the pressure at the valve outlet.

Does this element include the orifice and valve body?
The Danfoss 067B3352 is the power element only. The TE 20 expansion valve is a modular system; the valve body and orifice assembly must be sourced separately based on your specific capacity and connection requirements.

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.