Product Description
The TRUE 851123 is a capillary tube used in commercial refrigeration systems to regulate refrigerant flow between the high-pressure and low-pressure sides of the refrigeration circuit. Measuring 0.106 inches outer diameter, 0.054 inches inner diameter, and 84 inches in length, this tube acts as a fixed-restriction metering device in place of a TXV or orifice. It controls the rate at which liquid refrigerant feeds into the evaporator, directly affecting system efficiency and superheat. Licensed refrigeration technicians install and replace capillary tubes during system repairs, refrigerant retrofits, and component rebuilds.
This capillary tube is suited for commercial refrigeration equipment including reach-in coolers, display cases, and undercounter refrigeration units. It is a TRUE OEM part, making it the correct replacement for servicing TRUE commercial appliances. The 84-inch length provides sufficient material for most standard replacement scenarios, and the precise inner diameter governs the correct refrigerant mass flow rate for the intended system design. Techs working on TRUE equipment will find this tube dimensionally matched to OEM specifications.
Key Features
- 0.106-inch outer diameter and 0.054-inch inner diameter for precise refrigerant flow restriction
- 84 inches total length provides flexibility during installation and routing
- Fixed-restriction metering device — no moving parts to wear or fail
- OEM TRUE part for commercial refrigeration applications
- Direct replacement for capillary tube assemblies in TRUE commercial appliances
Compatibility
Designed as an OEM replacement capillary tube for TRUE commercial refrigeration equipment. Confirm inner diameter, outer diameter, and required tube length against the existing capillary tube before installation.
Installation Notes
Capillary tube replacement is performed by licensed HVAC-R technicians in jurisdictions requiring EPA Section 608 certification for refrigerant handling. Recover all refrigerant from the system before cutting or removing the existing capillary tube. Use appropriate swaging, brazing, or compression fittings rated for refrigerant service, and avoid kinking the tube during routing. Pressure-test the system and check for leaks before recharging with refrigerant.
Technical Specifications
-
Outer Diameter: 0.106 inches
-
Inner Diameter: 0.054 inches
-
Length: 84 inches
Standard Information
-
Brand: TRUE
-
Manufacturer Part Number: 851123
