Bitzer OSK7451
OFFLINE_CALC
German-engineered semi-hermetic reciprocating and screw compressors for industrial refrigeration.
Specifications
- Compression technology: Screw
- Configuration: Single
- Enclosure / drive: Open-Drive
- Variable speed: Not Stated
- Hazardous-area certification: Not Stated
- Product category: compressor
Qualified refrigerants & capacity
Calculated cooling capacity (kW). The evaporating / condensing temperature each column was evaluated at is listed per refrigerant, because the grid differs by refrigerant.
| Refrigerant | ULT | LT | MT | HT | Conditions |
|---|---|---|---|---|---|
| R134a | — | 14.05 | 66.78 | 83.9 | ULT -60 / 45 °C; LT -35 / 45 °C; MT -10 / 45 °C; HT -5 / 45 °C |
| R404A | — | — | 107.63 | 132.87 | ULT -60 / 45 °C; LT -35 / 45 °C; MT -10 / 45 °C; HT -5 / 45 °C |
| R407A | — | — | 103.92 | 128.45 | ULT -60 / 45 °C; LT -35 / 45 °C; MT -10 / 45 °C; HT -5 / 45 °C |
| R407F | — | — | 112.7 | 138.74 | ULT -60 / 45 °C; LT -35 / 45 °C; MT -10 / 45 °C; HT -5 / 45 °C |
| R507A | — | — | 109.49 | 135.05 | ULT -60 / 45 °C; LT -35 / 45 °C; MT -10 / 45 °C; HT -5 / 45 °C |
Related Bitzer models
Frequently asked questions
What refrigerants does the Bitzer OSK7451 support?
The Bitzer OSK7451 is qualified for R134a, R404A, R407A, R407F, R507A. The table above lists capacity at ultra-low, low, medium and high temperature duty for each refrigerant, with the evaporating and condensing temperature each value was calculated at. Those conditions differ by refrigerant, so read them per row.
What is the cooling capacity of the Bitzer OSK7451?
Running on R407F, the Bitzer OSK7451 delivers 112.7 kW at MT (-10 / 45 °C), 138.74 kW at HT (-5 / 45 °C). These are calculated cooling capacities at the rating basis the manufacturer declares with its data, not measured values. Use the Benchmark tool to evaluate capacity at your exact SST/SDT and superheat conditions.
What type of compressor is the Bitzer OSK7451?
DigiEntropy classifies the Bitzer OSK7451 as OFFLINE_CALC. Browse the Bitzer catalog to compare nearby models from the same brand.
Can the Bitzer OSK7451 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.
Where does the Bitzer OSK7451 performance data come from?
From Bitzer's own published performance data, evaluated at the suction and liquid conditions the manufacturer declares with it. Which rating standard the manufacturer certifies to (EN 12900 or AHRI 540) is not stated on this page; check the manufacturer's datasheet. Fit your own data in the Polynomial Fitter tool.