Danfoss introduces new TXV that delivers more stable temperature control and increased efficiency for refrigeration applications

BALTIMORE, MD., Sept. 29, 2014 (GLOBE NEWSWIRE) -- Danfoss has developed the new TU with F-charge TXV to help OEMs meet the new DOE commercial refrigeration energy efficiency standards. The new F-bulb charge delivers low superheat in low and medium temperature refrigeration ranges, includes asymmetric ballast material that is proven to deliver more stable temperature control and like all Danfoss TXV bulb charges, is HCFC-22 free. Similar to current Danfoss TUA valves on the market, TU with F-charge valves feature laser-welded power elements that ensure diaphragm integrity, tough stainless steel capillary tubes, bi-metal connections for faster brazing and an exchangeable orifice design for reduced complexity.

Basic specifications:

  • Designed for low, stable superheat control from -40 to 50°F
  • Laser-welded power element
  • Stainless steel valve body and capillary tube
  • Bi-metal connections
  • Exchangeable orifice design
  • Compatible with R407A, R407F, R404A, R507, R22, R407C, R134a refrigerants
  • HCFC-22 free bulb charge


  • Increased energy efficiency: the new F-charge delivers low superheat in low and medium temperature refrigeration ranges and more stable temperature control
  • Reduced complexity: exchangeable orifice design decreases the number of parts needed to cover the full refrigeration range
  • Longer valve lifetime: stainless steel construction is corrosion resistant and laser welded power element protects diaphragm integrity
  • Faster installation: bi-metal connections eliminate need for wet wrap
  • Reduced set time: factory optimized superheat setting combined with new bulb charge requires little to no field adjustment
  • Superior durability: stainless steel capillary tube strengthens the most common breakage point of TXVs
  • Proven, environmentally friendly bulb charge

View features

View the features of TU with F-charge Thermostatic Expansion Valve: https://www.youtube.com/watch?v=mYyoA9bMdx0

Learn More

Visit the TU with F-charge website: http://TUFcharge.com

About Danfoss TXV bulb charges

For more than 80 years, Danfoss has been engineering innovative products to help improve the impact of refrigeration on our environment. Danfoss stopped using HCFC-22 and other ozone depleting substances in TXV bulbs more than 20 years ago, instead using highly-engineered bulb charges made from homogeneous mixtures of non-ozone depleting refrigerants and gases. All Danfoss bulb charges are created using precision processes in a controlled environment to ensure uniform quality. Danfoss has a proven global track record with millions of Danfoss HCFC-22 free thermostatic expansion valves installed that continue to deliver consistent performance and reliability.

About Danfoss

The Danfoss Group operates globally as one of the leaders in the manufacturing of components for the HVAC &R industry, power electronics, and mobile hydraulics. Their key competencies are cooling of food, air conditioning, control of electrical motors and heating in buildings – as well as solutions for renewable energy such as solar power. Danfoss employs 23,500 employees globally and has 110 sales companies around the world. Read more about Danfoss at www.Danfoss.com. Learn about its energy-efficient solutions at: http://www.danfoss.com

For more information
Jonathan Holloway, Segment Strategy Manager, Food Retail at Danfoss North America
Products of interest
TUA with F-charge thermostatic expansion valves
Thermostatic Expansion Valves from Danfoss

Danfoss engineers technologies that enable the world of tomorrow do more with less. We meet the growing need for infrastructure, food supply, energy efficiency and climate-friendly solutions. Our products and services are used in areas such as refrigeration, air conditioning, heating, motor control and mobile machinery. We are also active in the field of renewable energy as well as district heating infrastructure for cities and urban communities. Our innovative engineering dates back to 1933 and today Danfoss is a world-leader, employing 22,500 employees and serving customers in more than 100 countries. We are still privately held by the founding family. Read more about us at www.danfoss.com.

CONTACT: Danfoss North America 11655 Crossroads Circle Baltimore, MD 21220-2863 Phone: 410-931-8250 Fax: 410-931-8256 www.danfoss.us

Source: Danfoss US