Danfoss 067N9218 R410A 35-Ton Externally Equalized TXV, Type TGEL 40

Description

Overview

The Danfoss 067N9218 is a heavy-duty, externally equalized Thermal Expansion Valve (TXV) engineered for large commercial and industrial 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 choice for demanding high-capacity cooling applications.

Key Features

• Refrigerant: R410A compatible
• Capacity: 35 Ton
• Body Style: Straight Body configuration for simplified inline installation
• Inlet Connection: 1-1/8″ ODF
• Outlet Connection: 1-3/8″ ODF
• Capillary Tube Length: 60″ (5 feet) for flexible bulb placement
• Maximum Operating Pressure (MOP): 667 PSI — engineered for the higher operating pressures of R410A systems
• Equalization: Externally equalized for accurate superheat control across longer evaporators or those with significant pressure drop
• Orifice: Number 30 orifice for optimized flow at rated capacity
• Includes bulb strap for secure sensing bulb mounting
• Type: TGEL 40

External Equalization Advantage

The external equalizer port connects downstream of the evaporator outlet, referencing true evaporator outlet pressure rather than inlet pressure. This design ensures accurate superheat control in systems with significant evaporator pressure drop — a critical requirement in large-tonnage commercial applications — preventing flood-back and protecting compressors.

R410A High-Pressure Design

With a Maximum Operating Pressure of 667 PSI, the Danfoss 067N9218 is purpose-built for R410A’s elevated pressure characteristics. The valve’s internal components and seals are rated to handle R410A’s operating range safely and reliably, ensuring long service life in high-pressure refrigerant circuits.

Applications

• Large commercial air conditioning systems
• Industrial refrigeration equipment
• Chiller and process cooling systems using R410A
• Systems requiring precise superheat control at high tonnage
• Evaporators with significant refrigerant-side pressure drop

Specifications Summary

• SKU / Part Number: 067N9218
• Brand: Danfoss
• Valve Type: Thermal Expansion Valve (TXV), Type TGEL 40
• Refrigerant: R410A
• Capacity: 35 Ton
• Body Style: Straight
• Inlet Connection: 1-1/8″ ODF
• Outlet Connection: 1-3/8″ ODF
• Capillary Tube Length: 60″
• MOP: 667 PSI
• Equalization: External
• Orifice Number: 30
• Includes: Bulb strap