Description
Danfoss 067N9404 Thermal Expansion Valve (Type TGEX 10) Overview
The Danfoss 067N9404 is a high-performance Thermal Expansion Valve (TXV) engineered for reliable refrigerant metering in commercial and light-industrial HVAC and refrigeration systems. Designed under Danfoss’s proven TGEX 10 series, this externally equalized valve delivers precise superheat control across a wide range of operating conditions, making it a trusted choice for service technicians and system designers alike.
Key Features
- Type: TGEX 10 Thermal Expansion Valve (TXV)
- Connections: 1/2″ ODF inlet x 7/8″ ODF outlet, straight body configuration
- Capillary Tube Length: 60 inches for flexible bulb placement
- Compatible Refrigerants: R22 and R407C
- Nominal Capacity: 6 Ton
- Maximum Operating Pressure (MOP): 667 PSI
- Equalization: Externally equalized for accurate superheat control in systems with significant evaporator pressure drop
- Orifice: Number 6 orifice for proper flow sizing
- Includes bulb strap for secure thermal bulb mounting
Technical Specifications
- SKU / Part Number: 067N9404
- Brand: Danfoss
- Series: TGEX 10
- Body Style: Straight
- Inlet Connection: 1/2″ ODF
- Outlet Connection: 7/8″ ODF
- Capillary Tube: 60″ (5 ft)
- Refrigerant Compatibility: R22, R407C
- Capacity: 6 Ton
- MOP Rating: 667 PSI
- Equalization Type: External
- Orifice Number: 6
- Includes: Bulb strap
Application & Benefits
The external equalization port on the Danfoss 067N9404 makes it ideal for evaporators with a significant pressure drop across the refrigerant circuit, ensuring accurate superheat sensing regardless of downstream pressure variations. The 60-inch capillary tube provides ample reach for mounting the sensing bulb at the optimal location on the suction line. The MOP of 667 PSI provides a high-pressure cutoff that protects the compressor from dangerously high suction pressures during system startup or warm ambient conditions. Compatible with both R22 and R407C refrigerants, this valve supports both legacy systems and modern R407C retrofit applications, making it a versatile solution for commercial air conditioning and refrigeration installations.
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