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CN series

Product catalog summary

General Description: The CN Series pumps are single-stage centrifugal pumps designed according to ISO 2858 and ISO 5199 standards. They feature a hydraulically balanced overhung impeller, simple volute casing, axial suction, and radial discharge. Bearings are lubricated in an oil bath, and the design allows for easy disassembly without disturbing alignment or disconnecting pipes and motors. Standard construction uses UNI 2223-2229 PN 16 pipe flanges, with options for other standards.

Optional Configurations: Various configurations are available to meet different service requirements, including semi-open impellers for abrasive or high-viscosity liquids, inducers to reduce NPSH requirements, heated casings for high-temperature liquids, and heavy-duty bearings for demanding conditions. Additional options include constant level oilers and various seal types.

Seals: The pumps allow for interchangeability between packing and mechanical seals, with standard mechanical seals conforming to DIN standards. Flushing is typically achieved through internal recirculation, with options for API 610-like configurations.

Construction Materials: Standard materials include cast iron, carbon steel, and stainless steel, with other metallurgic combinations available upon request. Maximum working pressures are 16 bar for cast iron and 20 bar for stainless steel, bronze, and special alloys.

Interchangeability: The CN Series offers a high degree of interchangeability across models, casings, impellers, shafts, bearing brackets, covers, and mechanical seals, simplifying maintenance and parts storage.

Technical Specifications: Detailed dimensions and weights for various pump sizes are provided, including specifications for shaft ends and foundation bolts. The document includes a comprehensive table of dimensions for different pump models, highlighting the flexibility and adaptability of the CN Series pumps.

Specifications: The document provides detailed specifications for various pump models, including dimensions and performance metrics. Models are identified by codes such as 125-100-315, 150-125-250, and 200-150-400, among others. Key parameters include dimensions, capacity, and head measurements.

Performance Data: Performance is measured at different RPMs (1450 and 2900) and includes capacity in cubic meters per hour (m3/h) and head in meters (H mt) and feet (H feet). The document lists performance data for a wide range of pump models, indicating their capacity and head at specified RPMs.

Operating Conditions: The document mentions that operating diagrams for CN pumps at 60 Hz are available upon request, suggesting customization options for different operational frequencies.

Contact Information: Contact details for Pompe Garbarino S.p.A. are provided, including addresses and phone numbers for the headquarters in Acqui Terme and a branch in Milan, Italy.

Additional Information: The document notes that ATEx certification is available on request, indicating compliance with specific safety standards for equipment used in explosive atmospheres.

Catalog excerpts

Chemical pumps according to ISO 2858 - 5199 Pompe chimiche normalizzate I$0 2858 -5199

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CHEMICAL PUMPS ACCORDING TO POMPE CHIMICHE NORMALIZZATE GENERAL DESCRIPTION CN Series are single stage centrifugal pumps, hydraulically balanced overhung impeller, simple volute casing, axial suc- tion and radial discharge. Bearings are oil bath lubricated. The high standardization of the common parts simplifies spare parts storage. The bolting to the base plate through the casing feet together with spacer coupling, allow an easy disassembly of the rotating parts without disturbing the ali- gnment and without disconnecting pipes and motor. UNI 2223-2229 PN 16 pipe flanges are used for standard...

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bare shaft version versione ad asse nudo open impeller girante aperta closed impeller girante chiusa coupling and baseplate version versione con giunto e basamento

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LONGITUDINAL SECTION SEZIONE LONGITUDINALE

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cooled bearings version versione con supporto raffreddato heavy duty bearings version versione con cuscinetti rinforzati open impeller version SOFT PACKING VERSION inducer versione a girante aperta VERSIONE TENUTA A BADERNA 5 inducer 5

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* PUMPS NOT COMPLYNGWITH ISO 2858 STANDARDS POMPE NON NORMALIZZATE ISO 2858

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Via Marenco, 44 -15011 Acqui Terme (AL) - Italy - Tel. +39 0144.388671 - Fax +39 0144.55260 E-mail: [email protected] Milan Branch: Viale Andrea Doria, 31 - 20124 Milano - Italy - Tel. +39 02.67070037 - Fax +39 02.67070097 E-mail: [email protected]

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