Description
Danfoss 067N6186 Thermal Expansion Valve — Type TGES 40
The Danfoss 067N6186 is a heavy-duty, externally equalized thermal expansion valve (TXV) engineered for large commercial and industrial refrigeration systems operating on R404A and R507 refrigerants. Rated at 21 tons of capacity and featuring a Maximum Operating Pressure (MOP) of 667 PSI, this valve delivers precise superheat control and reliable performance in demanding applications.
Key Features
- Refrigerant compatibility: R404A and R507
- Rated capacity: 21 Ton
- Maximum Operating Pressure (MOP): 667 PSI
- Inlet connection: 1-1/8″ ODF (straight body)
- Outlet connection: 1-3/8″ ODF (straight body)
- Capillary tube length: 60 inches for flexible bulb placement
- Orifice number: #30 for optimized flow control
- External equalization for accurate superheat control across long evaporators or high-pressure-drop circuits
- Includes bulb strap for secure thermal bulb mounting
- Type TGES 40 — Danfoss commercial refrigeration TXV series
External Equalization Advantage
The externally equalized design connects the sensing bulb signal to the low-pressure side of the evaporator outlet, compensating for pressure drop across the evaporator coil. This ensures consistent and accurate superheat regulation in large evaporators, multi-circuit coils, and distributor-fed systems — preventing both flood-back and excessive superheat.
Application
Ideal for commercial refrigeration systems including walk-in coolers and freezers, display cases, blast chillers, and process cooling equipment utilizing R404A or R507 refrigerant circuits requiring high-capacity, precise expansion control.
Product Specifications
- SKU / Part Number: 067N6186
- Brand: Danfoss
- Valve Type: Thermal Expansion Valve (TXV)
- Series / Type: TGES 40
- Body Style: Straight
- Inlet Size: 1-1/8″ ODF
- Outlet Size: 1-3/8″ ODF
- Capillary Tube Length: 60″
- Orifice Number: #30
- Refrigerant: R404A / R507
- Capacity: 21 Ton
- MOP: 667 PSI
- Equalization: External
- Includes: Bulb strap
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