Universal TR6 Thermostatic Expansion Valve with multiple refrigerant compatibility (R-410A, R-454B, R-32)

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Hermetically tight expansion valve for today's and tomorrow's refrigerants

TR 6 thermostatic expansion valves are designed and developed for ducted split (US residential) air conditioning and light commercial air conditioning systems. With the TR 6 you get a hermetically tight design which meets the environmental demands of today and tomorrow and can be used for all fluorinated refrigerants.

One code. Multiple Refrigerants. Zero Compromises.

The TR 6 design incorporates a hot-pressed brass body with the entire power element, including the capillary tube and bulb, fabricated from stainless steel. The valve is supplied as standard in straightway version with fixed orifice and external equalization.

The valve can be delivered with or without internal check valve and with an external superheat adjustment spindle for field retrofit. The TR 6 valve has a balanced port design to reduce the influence from varying condensing pressures.

What makes the Universal TR6 stand out is its ability to handle both traditional refrigerants like R-410A, which are still commonly used in older systems, and new low-GWP (Global Warming Potential) refrigerants such as R-454B and R-32, which are gaining traction in response to environmental regulations.

Features and benefits

Compact size, hermetic design
Laser-welded power element for long service life and high pressure tolerance
Stainless steel capillary tube, for easy installation and vibration resistance
Adjustable or non-adjustable superheat for customer specific factory setting
Solder or mechanical connections
Broad refrigerant compatibility
UL certified

Achieve the highest precision flow control – regardless of the system conditions

Danfoss’ range of thermostatic expansion valves are designed to ensure a precise control of the injection of refrigerant liquid into evaporators. This brochure contains an overview of our thermostatic expansion valves.

Download the brochure

Close-up image of the silver thermostatic expansion valve being used as the brochure cover for the overview of Danfoss thermostatic expansion valves (TXVs)

Documents

Documents
Type	Name	Language	Valid for	Updated	Download	File type
Brochure	Overview Brochure Thermostatic Expansion Valves	English	Multiple	24 Mar, 2025	2.2 MB	.pdf
Installation guide	Thermostatic expansion valve Type TR6	English	Multiple	07 Mar, 2025	640.6 KB	.pdf
Case story	TR 6 Case Story Universal Kits	English	Multiple	26 May, 2015	72.6 MB	.pdf

Software

The truth is Cool(selector®2)

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.

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