Refrigerator Copper Drier D111 Directional 1/4 inch Step Down and Valve Description A compact, directional refrigeration drier designed to protect refrigeration and chill systems by trapping moisture and solid contaminants in the refrigerant circuit. Model D111 features a copper body, a 1/4 inch step down connection, and an integrated service valve for straightforward installation and maintenance. Key benefits Protects system components: Removes moisture and particulates that can damage compressors and valves, reducing the risk of premature failure. Easy to orient and install: Directional design with a clear flow indication helps ensure correct installation every time. Convenient serviceability: Integrated valve allows isolation for system servicing without full system discharge when procedures permit. Spacesaving and adaptable: Step down 1/4 inch connection supports installations where smaller line sizes or adapters are required. Durable material: Copper construction offers reliable thermal and mechanical performance in refrigeration environments. Main features and specifications Model: D111 Function: Refrigerant drier for removal of moisture and contaminants Orientation: Directional; install according to flow direction marking Connection type: 1/4 inch step down fitting for adaptable line sizing Material: Copper body and fittings Service feature: Builtin valve for isolation and maintenance access Typical use: Inline installation on refrigerator and refrigeration circuits Compatibility and performance notes Designed for use in refrigeration systems requiring a compact inline drier with a 1/4 inch connection. Suitable for a variety of refrigeration equipment where a directional drier and service valve are required. Performance depends on correct sizing and installation for the specific refrigerant type and system conditions. Practical use scenarios a worn or contaminated drier on a household or commercial refrigerator during routine maintenance to restore system reliability. Install in a compact refrigeration retrofit where line sizes differ, using the 1/4 inch step down connection to adapt to existing piping. Use during field service to isolate and test portions of a refrigeration circuit via the integrated valve, simplifying troubleshooting and repairs. Installation tips Observe the directional flow marking when mounting inline. Follow standard refrigeration service practices for brazing, leak checking, and evacuation when connecting the drier. Verify compatibility with the system refrigerant and line sizes prior to installation. This D111 copper drier combines directional flow control, a 1/4 inch step down connection, and a service valve to provide a practical, durable option for refrigeration system maintenance and .