KSB’s Etanorm SYT heat transfer liquid pump featuring the new VenJet venting device. (KSB Aktiengesellschaft, Frankenthal, Germany)
KSB’s Etanorm SYT heat transfer liquid pump featuring the new VenJet venting device. (KSB Aktiengesellschaft, Frankenthal, Germany)

The venting device is designed to ensure that the low-boiling fractions or water vapour do not get near the plain bearings or the mechanical seal.

The new tanorm SYT heat transfer liquid pump features several design improvements to help increase the robustness of previous versions. For example, the discharge cover has four bars which make it rigid in the area of the heat barrier and reduce the heating up of the bearing bracket. This area remains well below the critical temperature range despite the presence of hot fluids.

Versions of the SYT are also available with a double mechanical seal in tandem arrangement with a quench supply. On this design, the bearing bracket has an intermediate wall to create a separate quenching space within the mechanical seal chamber, where the mechanical seal used is a standard mechanical seal of short design. This seal type also makes it possible to safely handle critical media whose vapour pressure exceeds 1 bar at operating temperature.

KSB will also showcase the cast steel NORI 40 series at the show. This series features hydraulically optimised flow paths which make for very low pressure losses, thus reducing the costs for energy needed to operate heat transfer systems. As well as the above models, KSB will also present bellows-type globe valves, non-return valves and strainers made of nodular cast iron.