SIHI SuperNova Pump ZDN – Hot Water

The SIHI SuperNova Pump ZDN series has specifically been designed for the trouble free handling of hot water up to 207 °C and is distinguished by:

• A double heat barrier that causes an optimal energy consumption by the pump and reduces the temperature level in the mechanical seal chamber to less than 90 °C without external cooling circuit (see temperature curve on page 3). The service life of the mechanical seal increases considerably.
• A special design that automatically leads accumulation of gas to exhaust. Consequently, the dry operation of the mechanical seal can be excluded.
• A programme that comprehends 22 construction sizes and thus guarantees an optimal solution for every operating point.
• The back pull out design, which permits the removal of the complete, bearing unit towards the drive side without removing the pump casing from the pipe work. If a spacer coupling is installed it is also unnecessary to disconnect the motor.

Pumps of the ZDN type are part of the family of heat transfer and circulation pumps. They are primarily used for circulation of hot water in closed pipe and vessel systems. Therefore their fields of application are the energy production, the heat transport industry and here mainly in systems where hot water as heat carrier is given preference, despite its high system pressure, over oil as a heat carrier.