Danfoss 067L5975 TR6 Thermostatic Expansion Valve TXV R454B Orifice 2 3/8" ODF Kit

The Danfoss 067L5975 is a TR6 Series Thermostatic Expansion Valve (TXV) Kit designed specifically for R454B refrigerant — a low-GWP (Global Warming Potential) next-generation refrigerant increasingly required in modern HVAC systems. Featuring an Orifice No. 2 with a rated capacity of approximately 3 TR (10.5 kW), this valve is well-suited for residential and light commercial split systems, heat pumps, and rooftop units.

The TR6 design utilizes a hot-pressed brass body with the complete power element — including the capillary tube and sensing bulb — fabricated from stainless steel for long-term durability and corrosion resistance. A balanced port design minimizes the influence of varying condensing pressures, ensuring stable and consistent refrigerant flow control. External equalization via a 1/4" connection allows accurate superheat sensing even in higher-pressure-drop evaporators.

Key Features:

• Refrigerant: R454B (low-GWP, next-generation refrigerant)
• Orifice Size: No. 2 — rated capacity ~3 TR / 10.5 kW
• Connections: 3/8" x 3/8" ODF solder inlet/outlet; 1/4" external equalizer
• Capillary Tube Length: 31.5" stainless steel capillary tube
• Temperature Range: +15°F to +60°F (+15°C to -10°C evaporator)
• Body: Hot-pressed brass with stainless steel power element and sensing bulb
• Balanced port design reduces sensitivity to condensing pressure variations
• Adjustable superheat setting for field flexibility
• Available with or without internal check valve for heat pump applications

Kit Includes:

• TR6 thermostatic expansion valve (TXV)
• Chatleff female 3/4" connector adapter
• Aeroquip female 5/8" connector adapter
• Copper bulb strap
• Foam insulation tape
• Installation guide

The Danfoss 067L5975 is an ideal drop-in upgrade or service replacement for R454B-compatible HVAC systems, delivering precise refrigerant metering, improved energy efficiency, and reliable evaporator performance in both air conditioning and heat pump configurations.