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Product catalog summary

Overview
Centrifugal pumps designed according to EN 733 standards are versatile and suitable for use with fresh and sea water, condensate, oils, and chemical and petrochemical products. They are commonly utilized in industries such as shipbuilding, heating plants, air conditioning systems, aqueducts, effluent treatment plants, fire fighting, and petrochemical plants.

Main Features

Pump Type: Centrifugal, end-suction with single volute casing, single flow, and axial inlet.
Impeller: High efficiency, closed type, balanced both statically and dynamically, with low axial thrust due to balancing holes.
Mounting System: Shaft supported by radial and thrust bearings in an oil bath bracket, with options for self-lubricated or grease-lubricated ball bearings. Brackets are typically made of cast-iron, bronze, or stainless steel for special applications.
Seal: Single mechanical seal to DIN 24960, with options for special mechanical seals or cartridge types. Soft-packing with external flushing is possible, and a cooling chamber can be fitted for temperatures above 120°C.
Self-Priming: Small and medium-sized pumps can include a built-in priming element, and all sizes can be supplied in a self-priming version with an additional air ejector.
Back Pull Out: Allows removal of rotating components without disturbing pipes, pump casing, and motor using a flexible spacer coupling.
Base Plate: Generally made of welded steel, with options for stainless steel for non-magnetic and/or anti-vibration requirements.

Special Versions
Special versions are available according to Naval Rules, including shock-proof, vibration-proof, noise-proof, and non-magnetic options.

Materials and Pressure

Cast Iron: Maximum working pressure of 10 bar.
Stainless Steel, Bronze, Special Alloy: Maximum working pressure of 16 bar.
Special executions exceeding these limits are available on request.

Interchangeability
The document lists various interchangeable components such as models, casings, impellers, shafts, bearing brackets, covers, and mechanical seals.

Pump Dimensions
The document provides detailed dimensions for various pump types, including shaft, suction flange, delivery flange, and other specifications.

Catalog excerpts

Centrifugal pumps according to EN 733 Pompe centrifughe normalizzate EN 733

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MU CENTRIFUGAL PUMPS ACCORDING TO EN 733 STANDARDS TENUTA: tenuta meccanica singola normalizzata DIN 24960. Tenute speciali e a cartuccia per liquidi ed applicazioni particolari. Possibilità di installare tenuta a baderna con flussaggio esterno. Per temperature superiori ai 120 °C possibilità di dotare la pompa di camera di raffreddamento della tenuta. POMPE CENTRIFUGHE NORMALIZZATE EN 733 SELF-PRIMING: Small and medium size pumps can be equipped with built-in priming element; all sizes can be supplied in self-priming version with an additional air ejector. COMMON AND GENERAL USE Fresh and sea...

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bare shaft version versione ad asse nudo materiali cast iron stainless steel, bronze, special alloy Mechanical seals nota: esecuzioni speciali al di fuori dei limiti sopraesposti realizzate su richiesta Bearing brackets acciaio inox, bronzo, leghe speciali note: special executions exceeding the above limits available on request Intercambiabilità: Models Giranti Alberi Coperchi tenute meccaniche close coupled version self priming element with liquid ring versione monoblocco elemento autoadescante ad anello liquido

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LONGITUDINAL SECTION SEZIONE LONGITUDINALE SOFT PACKING VERSION VERSIONE TENUTA A BADERNA SELF-PRIMING VERSION VERSIONE AUTOADESCANTE

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VACUUM GAUGE FLANGEs DIMENSIONS NUMERO FORI BOCCA MANDATA HOLES NUMBER PESO POMPA PUMP WEIGHT PRESSURE GAUGE X X SHAFT SHAFT SHAFT SUCTION FLANGE POMPA TIPO N.y/Øg N.y/Øg DIMENSIONI pompa PM1 SHAFT END PM1 W W M estremità d’albero m2 m2 n2 m1 key m1 according to uni 6604 s s n1 chiavetta secondo uni 6604 PUMP DIMENSIONS PUMP TYPE DELIVERY FLANGE D' D' D' K' N.y'/Øg' N.y'/Øg' K' K' N.y'/Øg' N.y'/Øg' PM2 DNd PM2 PM2 PM2 DNd DNd

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/V"X Member ol CISQ Federation 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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Catalog excerpts

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