Description
Danfoss 067N9406 Thermal Expansion Valve (Type TGEX 10) Overview
The Danfoss 067N9406 is a high-performance externally equalized thermal expansion valve (TXV) engineered for reliable refrigerant metering in commercial and light-industrial HVAC and refrigeration systems. Designed for use with R22 and R407C refrigerants, this valve delivers precise superheat control to maximize system efficiency and protect the compressor from liquid slugging.
Key Features
- Type TGEX 10 straight-body TXV design for straightforward inline installation
- Inlet connection: 5/8″ ODF — Outlet connection: 7/8″ ODF
- 60″ (5-foot) capillary tube for flexible bulb placement and routing
- Compatible refrigerants: R22 and R407C
- Rated capacity: 7½ Ton (at standard ARI conditions)
- Maximum Operating Pressure (MOP): 667 PSI for high-side protection
- Externally equalized design compensates for evaporator pressure drop, ensuring accurate superheat control across the full coil
- Number 8 orifice for matched system capacity
- Includes bulb strap for secure thermal sensing bulb attachment to the suction line
Technical Specifications
- SKU / Part Number: 067N9406
- Valve Type: Thermal Expansion Valve (TXV)
- Series: TGEX 10
- Body Style: Straight
- Inlet Connection: 5/8″ ODF
- Outlet Connection: 7/8″ ODF
- Capillary Tube Length: 60″ (5 ft)
- Refrigerant: R22 / R407C
- Capacity: 7½ Ton
- MOP: 667 PSI
- Equalization: External
- Orifice Number: 8
- Includes: Bulb strap
Application
Ideal for commercial air conditioning and refrigeration systems utilizing R22 or the R22-replacement refrigerant R407C. The externally equalized port connects to the evaporator outlet, making this valve well-suited for multi-circuit or distributor-fed evaporators where refrigerant-side pressure drop is a factor. The 7½-ton capacity and 667 PSI MOP rating make it appropriate for medium-to-large commercial cooling applications.
Why Choose Danfoss TXVs?
Danfoss is a global leader in refrigeration and HVAC controls, renowned for precision-engineered expansion valves that deliver consistent superheat regulation, long service life, and broad refrigerant compatibility. The TGEX series is a trusted choice among HVAC/R professionals for dependable capacity control in demanding commercial environments.







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