For pre-inlet cooling the housing is equipped with an additional third socket on the suction side. The lube oil supply is effected by splash oil lubrication. The conveying chamber is sealed by a sealing system. Driving shaft by double radial seal rings with grease barrier. Direction of flow vertically from top to bottom. The drive can be effected via a direct coupling with motor /spur gear or optionally via narrow V-belt

A design in special materials (GGG 40 / GGG 40.3) is possible.