Haifeng Machinery

Guascor G-18FL vs PSI 18L

The Guascor G-18FL and PSI 18L are both natural gas generator engines in a similar power class. Both are rated at roughly 334 kVA. Displacement is 18 L versus 18.3 L. The table below compares their full specifications side by side.

SpecificationGuascor G-18FLPSI 18L
Headline rating330 kVA338 kVA
Standby (50 Hz)—270 kWe
Prime (50 Hz)264 kWe—
Standby (60 Hz)—350 kWe
Prime (60 Hz)287 kWe—
Displacement18 L18.3 L
ConfigurationL6V10
Cylinders610
Rated speed1,500 / 1,800 RPM1,500 / 1,800 RPM
FuelNatural GasNatural Gas
CoolingLiquid-CooledLiquid-Cooled
EmissionsUnregulatedU.S. EPA Stationary
Dry weight——
OriginSpainUnited States

Choosing between Guascor G-18FL and PSI 18L

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 PSI 18L has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.