Hot Oil Pumps SIHI Supernova ZTN, ZTK

The series ZTN and ZTK have been developed for handling thermal oil up to 350 °C in the heating prosesses. The increased demands on operational safety, environmental protection and the reduction in running expenses have consequently been considered in this design. This also applies to the standards DIN 4754 and EN 733.

All pressure loaded components are of ductile materials, e.g. GGG 40.3 (ductile iron). The complete field chart for the new heat transfer pump is covered by 29 sizes making it an economical selection for your application. The heat losses of the ZTN and ZTK were able to be reduced considerably by installing a heat barrier arranged behind the hydraulics.

Furthermore the pump is fitted with a thermally isolated bearing carrier. A sliding sealing cartridge compensates for possible thermal expansion and thus prevents distortion between the pump and coupling. By additional throttling a favourable drop in temperature in the shaft seal area is achieved. This allows the use of single, uncooled shaft seals.

Technical data:
Capacity: max 1,000 m³/h
Head: max. 95 m
Temperature: max. 350 °C with uncooled mechanical seal