The pumping of hot water makes high demands on the pump design. Safe operation is influenced, to a high degree, by the mechanical seal. Therefore the parameters of pressure, temperature and sliding speed at the mechanical seal are optimised so that the service life is considerably increased.
ABS offers SIHI’s Heat Transfer pumps for Hot Water and Hot Oil:
for Hot Water:
Horizontal, single-stage volute casing pumps with dimensions and nominal ratings to EN 733 / DIN 24255 in back pull out design. The series ZHN has especially designed for the trouble free handling of hot water up to 180 °C. The back pull out design permits the removal of the complete bearing unit towards the drive end without removing the pump casing from the pipe work. If a spacer coupling is installed it is also unnecessary to disconnect the motor.
Applications:
The volute pumps of the series ZHN are part of the overall programme heat transfer and circutation 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 heat carrier.
Technical Data:
Flow rate: up to 600 m³/h
Head: up to 95 m
Speed: max. 3,600 rpm
Temperature: max. 180 °C
Casing pressure: up to 16 bar
Shaft seal: mechanical seal
Horizontal, single-stage volute casing pumps with the dimensions and nominal ratings to EN 22858 in back pull out design, with uncooled balanced mechanical seal. The series ZDN has especially been designed for the trouble free handling of hot water up to 207 °C. The back pull out design 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.
Applications:
The volute pumps of the series ZDN are part of the overall programme heat transfer and circutation 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 heat carrier.
Technical Data:
Flow rate: up to 600 m³/h
Head: up to 90 m
Speed: max. 3,600 rpm
Temperature: max. 207 °C
Casing pressure: up to 25 bar
Shaft seal: mechanical seal
Material: nodular iron
Horizontal, single-stage volute casing pumps with dimensions and nominal ratings to EN 22858 in back pull out design, with uncooled balanced mechanical seal. The series ZEN has especially been designed for the trouble free handling of hot water up to 230 °C. The back pull out design permits the removal of the complete bearing unit towards the drive end without removing the pump casing from the pipe work. If a spacer coupling is installed it is also unnecessary to disconnect the motor.
Applications:
The volute pumps of the series ZEN are part of the overall programme heat transfer and circutation 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 heat carrier.
Technical Data:
Flow rate: up to 600 m³/h
Head: up to 90 m
Speed: max. 3,600 rpm
Temperature: max. 230 °C
Casing pressure: up to 40 bar
Shaft seal: mechanical seal
Material: nodular iron, cast steel
Single-stage pumping units in compact design with nominal performances according to EN 733 / DIN 24255, where suction and discharge branch are arranged opposite to each other for direct installation into the pipe work. There is no common shaft for motor and pump. The motors used are standard motors. Due to the process design it is possible to withdraw the whole insert unit without detaching the pump casing from the pipe work.
Applications:
The volute pumps of the series ZDI are part of the overall programme heat transfer and circutation 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 heat carrier.
Technical Data:
Flow rate: up to 140 m³/h
Head: up to 60 m
Speed: max. 3,600 rpm
Temperature: max. 150 °C
Casing pressure: up to 25 bar
Shaft seal: mechanical seal
Material: nodular iron