Dorin 4D-65
TRANS
Italian specialist in CO2 transcritical compressors and natural-refrigerant refrigeration.
Specifications
- Compression technology: Reciprocating
- Configuration: Single
- Enclosure / drive: Semi-Hermetic
- Variable speed: Fixed-Speed
- Hazardous-area certification: No
- Product category: compressor
Qualified refrigerants & capacity
Capacity (kW) evaluated at standard conditions: ULT (-60/45 °C), LT (-35/45 °C), MT (-10/45 °C), HT (-5/45 °C).
| Refrigerant | ULT | LT | MT | HT |
|---|---|---|---|---|
| R134a | — | — | 0.01 | 0.02 |
Related Dorin models
Frequently asked questions
What refrigerants does the Dorin 4D-65 support?
The Dorin 4D-65 is qualified for R134a. Capacity values at standard ULT (-60/45 °C), LT (-35/45 °C), MT (-10/45 °C) and HT (-5/45 °C) conditions are listed in the table above for each refrigerant.
What is the cooling capacity of the Dorin 4D-65?
Running on R134a, the Dorin 4D-65 delivers 0.01 kW at MT, 0.02 kW at HT. Use the Benchmark tool to evaluate capacity at your exact SST/SDT and superheat conditions.
Is the Dorin 4D-65 a trans?
Yes — the Dorin 4D-65 is classified as a trans in the DigiEntropy taxonomy. Browse other transs from Dorin on the brand page.
Can the Dorin 4D-65 be retrofit to a lower-GWP refrigerant under EU F-Gas Regulation 2024/573?
Open the F-Gas Retrofit tool with this model pre-selected to see drop-in alternatives ranked by capacity match, COP, GWP, PFAS impact, and 2026/2030/2035 phase-out timeline.
What polynomial standard is the Dorin 4D-65 performance data based on?
Capacity, power, and current polynomials follow EN 12900 (10-coefficient bivariate in SST/SDT) for European-origin brands and AHRI 540 for North American brands. Coefficients are normalized into a common form for cross-brand comparison. Fit your own data in the Polynomial Fitter tool.
Find equivalents · F-Gas retrofit path · Open in Benchmark · All Dorin models