S.E.M.T. Pielstick PC 4.2 B

Main data

Bore	570 mm
Stroke	660 mm
Speed	429 / 400 rpm
Mean eff. pressure	22.0 / 22.3 bar
Piston speed	9.4 / 8.8 m/s

Power acc. to ISO 3046/1

Engine type	429 rpm 50 Hz		400 rpm 60 Hz
Engine type	Eng. kW	Gen. kW	Eng. kW	Gen. kW
18 PC 4.2 B	23 850	23 205	22 500	21 890

Specific fuel oil consumption 100% P	PC 4.2 B - 400 rpm	182 g/kWh
	PC 4.2 B - 400 rpm	185 g/kWh
Specific lube oil consumption	PC 4.2 B	approx. 1.0 g/kWh

Overall engine dimensions and weight

Engine type	Length (mm)	Width (mm)	Height (mm)	Mass (t)
18 PC 4.2 B	11 000	5 170	5 410	330

Engine Characteristics

The present PC 4.2 B engine is an improved version of the former PC 4 type medium-speed engine. Its rated nominal output per cylinder has been increased up to 1 325 kW. Main characteristics remain unchanged.

Its mass and dimensions, its low specific consumption and its capacity to burn residual fuels enable it to meet the strict requirement of land based electrical power stations.

Our experience is based on more than 350 engines of this type, the oldest one being in service since 1977, having run for more than 80 000 hours on heavy fuel oil.

The constant improvements brought to PC 4 engines settle a high level of security to the PC 4.2 engines.

The PC 4.2 B is able to burn all present and future residual fuels. The engine is equipped with a high-pressure injection system which provides perfect spray injection of the fuel, coupled with water-cooled exhaust valve cages specially designed to prevent vanadium and sodium corrosion.

S.E.M.T. Pielstick PC 4.2 B