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SIHISuperNova ZHND 032160

SIHISuperNova ZHND 032160
14Pages

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Volute pumps for hot water up to 180°C SIHI SuperNova TECHNICAL DATA Output: Delivery head: Speed: Medium temperature: Casing pressure: Shaft sealing: Flange connections: Sense of rotation: max. 600 m3/h max. 95 m max. 3600 rpm max. 180 °C PN 16 standard mechanical seal uncooled DIN EN 1092-2 PN 16 clockwise, when looking at the pump from the drive end APPLICATION The volute pumps of the series ZHND 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 and the 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. DESIGN Horizontal, single-stage volute pumps with dimensions and nominal ratings to EN 733 in back pull out design. The series ZHND has especially designed for the trouble free handling of hot water up to 180 °C and is distinguished by: • A heat barrier that causes an optimal energy consumption by the pump and reduces the temperature level in the mechanical seal chamber to less than 80 °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 end without removing the pump casing from the pipe work. If a spacer coupling is installed it is also unnecessary to disconnect the motor. CONSTRUCTION Casing pressure Max 16 bar Please note: Technical rules and safty regulations. Max. casing pressure = inlet pressure + zero head Max test pressure = 21 bar Flange location: Axial suction flange, discharge flange radially upwards. Flanges: The flanges comply with DIN EN 1092-2 resp. PN 16. Flanges drilled according to ANSI (previous ASA) 150 can be supplied. Hydraulic: Designation of this construction type: A or B Bearing: One grease lubricated antifriction bearing to DIN 625 and one internal liquid flushed sleeve bearing. Designation of this construction type: .A Direction of rotation: Clockwise, when looking at the pumpfrom the drive end. Shaft sealing: Code BJ3: Unbalanced standard mechnical seal Seal face materials SIC/carbon Elastomer EPDM

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General remarks: For equipping hot media systems a complete programme is available for a flow range between 1 -600 m3/h consisting of the range: ZEN volute pumps to DIN EN 22858, tmax 230 °C PN 40. Hot water design ZDN volute pumps to DIN EN 22858, tmax 207 °C PN 25. Hot water design ZLI volute pumps to EN 733 as INLINE construction, tmax 150 °C PN 25. Hot water design. ZTN volute pumps to EN 733, tmax 350 °C PN 16. Heat tranfer oil design. ZTK volute pumps to EN 733 close coupled design, tmax 350 °C PN 16. Heat transfer oil. ZTI volute pumps to EN 733 as INLINE construction,...

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Sectional drawing and nomenclature 10.20 volute casing 16.10 casing cover 21.00 shaft 23.00 impeller 33.00 bearing bracket 43.30 shaft seal 44.10 casing for mechanical seal 52.90, 5400 sleeve bearing Heat barrier / shaft seal / bearing / feet arrangement Heat transfer installations have achieved a high level of technical development. Consequently the requirements on the pumps handling heat carriers have increased regarding operating safety, environmental protection, maintenance and operating costs. On the basis of many years experience and latest technical knowhow the ZHND fully complies...

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Performance graph

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Dimensions in mm ZHND Size

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* Motor protection type IP 55, dimensions depend on the motor manufacturer. Some sizes are not corresponding to the drawing in small details. Foundation plan for 60Hz on request.

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Dimensions in mm ZHND Size

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Any changes in the interest of the technical development are reserved.

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Sterling SIHI (Spain), S.L. Vereda de los Zapateros s/n, Pozuelo de Alarcón 28223 Madrid, Spain. Telephone +34 91 709 1310 Telefax +34 91 715 9700 www.sihi.com

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SIHISuperNova ZHND 032160 14Pages

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SIHISuperNova ZHND 032160
14Pages