Catalogue - Series SIHISuperNova ZHN, 600 m³/h, 95 m, 180 °C0 pages

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Volute pumps

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for hot water up to 180°C

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SIHI ^uPerNova

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ZHND 032160 ... 150250

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STERLI		IMG
■	SIHI	■

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TECHNICAL DATA

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Output:

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Delivery head:

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Speed:

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Medium temperature:

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Casing pressure:

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Shaft sealing:

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Flange connections:

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Sense of rotation:

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max. 600 rrïVh

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max. 95 m

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max. 3600 rpm

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max. 180 °C

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PN 16

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standard mechanical seal

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uncooled

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DIN EN 1092-2 PN 16

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clockwise, when looking at the

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pump from the drive end

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APPLICATION

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The volute pumps of the series ZHND are part of the overall

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programme heat transfer and circutation pumps. They are primarily

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used for circulation of hot water in closed pipe and vessel systems.

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Therefore their fields of application are

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the energy production,

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the heat transport and

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the industry

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and here mainly in systems where hot water as heat carrier is given

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preference, despite its high system pressure, over oil as heat

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carrier.

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DESIGN

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Horizontal, single-stage volute pumps with dimensions and nominal

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ratings to EN 733 in back pull out design.

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The series ZHND has especially designed for the trouble free

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handling of hot water up to 180 °C and is distinguished by:

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• A heat barrier that causes an optimal energy consumption by

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the pump and reduces the temperature level in the mechanical

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seal chamber to less than 80 °C without external cooling circuit

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(see temperature curve on page 3). The service life of the

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mechanical seal increases considerably.

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• A special design that automatically leads accumulation of gas to

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exhaust. Consequently the dry operation of the mechanical seal

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can be excluded.

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• A programme that comprehends 22 construction sizes and thus

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guarantees an optimal solution for every operating point.

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• The back pull out design, which permits the removal of the

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complete, bearing unit towards the drive end without removing

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the pump casing from the pipe work. If a spacer coupling is

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installed it is also unnecessary to disconnect the motor.

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CONSTRUCTION

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Casing pressure

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max 16 bar from 0°Cupto180°C

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Please note:

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Technical rules and safty regulations.

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max. casing pressure = inlet pressure + zero head

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max test pressure = 21 bar

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Flange location:

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Axial suction flange, discharge flange radially upwards.

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Flanges:

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The flanges comply with DIN EN 1092-2 resp. PN 16.

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Flanges drilled according to ANSI (previous ASA) 150 can

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be supplied.

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Hydraulic:

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Designation of this construction type: A or B

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Bearing:

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One grease lubricated antifriction bearing to DIN 625 and

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one internal liquid flushed sleeve bearing.

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Designation of this construction type: A

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Direction of rotation:

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Clockwise, when looking at the pumpfrom the drive end.

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Shaft sealing:

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Code BJ3: Unbalanced standard mechnical seal

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Seal face materials SIC/carbon

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Elastomer EPDM

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133.64810.53.01 E

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PUMPTECHNOLOGY ZHN PI/40

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02/2005

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