Characteristics of the compact vacuum group PG35/38-F1
In Pedro Gil we have designed the rotating pistons for our RNT blower with three sealed lobes, dynamically balanced within a forged housing. This housing includes a specific system in the discharge function which allows progressive compression and therefore a reduction in vibration where it occurs.
The gears use helical heat-treated machined teeth in compliance with DIN-6. The fitting on the shaft is conical, without parallel keys and lubrication is by oil splash for the gears as well as the bearings. The seal between the compression chamber and the oil housing is achieved by way of labyrinth segment seals and an intermediate condensation chamber.
Finally, the seal between the drive shaft and the outside is achieved through a radial lip seal (Retén).
This type of compact vacuum group PG35/38-F1 uses activation by trapezoidal belts and conical sleeve pulleys. s/din 7753 and s/din 2211 respectively.
