Series HEP
| Displacement @ 60 Hz | 32,80 | [m³/h] |
| Suction valve | 28 s. | [mm] |
| Displacement @ 50 Hz | 27,33 | [m³/h] |
| Net weight | 90 | [kg] |
| Discharge valve | 22 s. | [mm] |
| Stroke | 40 | [mm] |
| Bore | 50 | [mm] |
| No. cylinders | 4 | |
| Oil charge | 2,0 | [L] |
A - Oil sight glass
B - Oil charge plug
C - Low pressure connection
D - High pressure connection
E - Oil drain plug
F - Crankcase heater
G - Oil return plug
DL - Discharge service valve
SL - Suction service valve
