Danfoss 067N3168 R410A 35-Ton Externally Equalized TXV, Type TGEL 40

Description

The Danfoss 067N3168 is a heavy-duty, externally equalized Thermal Expansion Valve (TXV) engineered for large commercial refrigeration and air conditioning systems operating on R410A refrigerant. Classified as Type TGEL 40, this valve delivers precise refrigerant flow control at capacities up to 35 tons, making it an ideal solution for high-capacity commercial HVAC applications.

The straight-body design features a 1-1/8″ ODF inlet and a 1-3/8″ ODF outlet, accommodating the larger line sets common in commercial installations. A 60-inch capillary tube provides flexible bulb placement during installation, while the included bulb strap ensures secure, reliable thermal sensing contact. The number 30 orifice is factory-installed, calibrated specifically for R410A at the rated capacity.

With a Maximum Operating Pressure (MOP) of 667 PSI, this valve is built to handle the elevated operating pressures characteristic of R410A systems, providing a critical safeguard against compressor floodback under high-load conditions. External equalization ensures accurate superheat control even in evaporators with significant pressure drop, maintaining system efficiency and protecting compressor integrity.

Key Features

• Valve Type: Externally Equalized Thermal Expansion Valve (TXV), Type TGEL 40
• Refrigerant: R410A
• Capacity: 35 Ton
• Inlet Connection: 1-1/8″ ODF
• Outlet Connection: 1-3/8″ ODF
• Body Style: Straight Body
• Capillary Tube Length: 60 inches
• Orifice Number: #30 (factory-installed)
• Maximum Operating Pressure (MOP): 667 PSI
• Equalization: External
• Includes bulb strap for secure thermal bulb mounting

Application

• Large commercial air conditioning and refrigeration systems
• R410A high-pressure system installations
• Evaporators with significant refrigerant-side pressure drop requiring external equalization
• Direct expansion (DX) systems requiring precise superheat management at high tonnage

Why Choose Danfoss TXVs

Danfoss is a globally recognized leader in refrigeration and HVAC controls, known for precision-engineered expansion valves that deliver consistent superheat control, long service life, and compatibility with modern refrigerants. The TGEL 40 series is purpose-built for demanding commercial environments where reliable refrigerant metering is critical to system performance and equipment longevity.