TU thermostatic expansion valves, fixed orifice

Control the refrigerant flow to the evaporator

The TU stainless steel thermostatic expansion valves allow you to control the refrigerant flow to the evaporator. The valve senses the refrigerant level and, when needed, injects liquid to keep the air conditioning system working at an optimum level.

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The TU valves are compact in design, light weight and have steel/copper bi-metal connections for fast soldering. The TU valves offer fixed or exchangeable orifices and adjustable or non-adjustable superheat settings, as well as internally or externally equalized designs. The TU valves are available in angle- or straight way designs and with many combinations of solder connections.

The TU valves ensure consistent function throughout the service life. The valves come with high dirt-retention filter and the TUA(E) versions with exchangeable filter, offer easy maintenance (or e.g.: cleaning of filter). For safe and reliable operation, the TU valves can be supplied with self-cleaning bleed or with a MOP charge.

Features and benefits

Suited for all common refrigerants and applications
Large operating range: N-range -40°C to +10°C / B-range -60°C to -25°C
Stable regulation
Compact design, low weight
Stainless steel, hermetically tight solder version with high corrosion and vibration resistance
Easy brazing with no need for wet wrapping
Adjustable superheat
Special non-adjustable superheat valves available
Filter with high dirt-retention capacity
Available with maximum operating pressure (MOP)

TU Passion for Expansion

Discover how TU is keeping the world cool since 1995.

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Documents

Documents
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Software

Coolselector®2: We did complex — you do awesome

Coolselector®2 features unbiased calculations for the selection of refrigeration and air conditioning components based on the user’s requirements or based on standard operating conditions.

Coolselector®2

The new Ref Tools app

Ref Tools is the essential, all-in-one mobile app for air conditioning and refrigeration technicians. Get the tools, guidance, support, and information you need—on the job and in the field.

Access Refrigeration Slider, Low-GWP Tool, Magnetic Tool, Spare Parts, and Troubleshooter directly in Ref Tools using an easy-to-navigate interface.

Ref tools Access Ref Tools via web browser

Learning

Learn more about our TU thermostatic expansion valves

Case stories

News

“Unique” TU thermostatic expansion valve turns 25 years

Danfoss is celebrating the 25th anniversary of its popular TU stainless steel thermostatic expansion valve—trusted for the most demanding refrigeration applications by OEMs and installers worldwide.

Full Danfoss portfolio of valves and line components ready for R454C, R455A, and R1234yf

The entire Danfoss portfolio of refrigeration components is now qualified for three A2L ultra-low GWP refrigerants: R454C, R455A, and R1234yf. This complements the previous qualification of the T2/TE expansion valves in July 2020.

Avoid counterfeits

Watch out for counterfeits to protect your image

Fake products give your business as well as our company a bad name. Therefore, we are doing everything we can to fight the counterfeits. Read more about how to make sure that the product you buy is genuine Danfoss quality.

Learn how to uncover counterfeit products