Perkins 2806A-E18TTAG7 vs VMAN D22.1
The Perkins 2806A-E18TTAG7 and VMAN D22.1 are both diesel generator engines in a similar power class. Both are rated at roughly 937 kVA. Displacement is 18 L versus 21.927 L. The table below compares their full specifications side by side.
| Specification | Perkins 2806A-E18TTAG7 | VMAN D22.1 |
|---|---|---|
| Headline rating | 938 kVA | 936 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | — |
| Standby (60 Hz) | 750 kWe | 749 kWe |
| Prime (60 Hz) | 680 kWe | 680 kWe |
| Displacement | 18 L | 21.927 L |
| Configuration | L6 | V12 |
| Cylinders | 6 | 12 |
| Rated speed | 1,800 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | Unregulated |
| Dry weight | — | — |
| Origin | United Kingdom | China |
Choosing between Perkins 2806A-E18TTAG7 and VMAN D22.1
Use this comparison as an engineering shortlist, then confirm the complete generator package against load profile, voltage, 50/60 Hz frequency, duty class, emissions rules, cooling margin, altitude, ambient temperature, enclosure design, controller features, and alternator sizing. The Perkins 2806A-E18TTAG7 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.