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CEM S.r.l.
HELICOIDAL (AXIAL) ELECTRIC BLOWERS

HELICOIDAL (AXIAL) ELECTRIC BLOWERS

Product catalog summary

Description and Use: The document outlines the specifications and applications of helicoidal (axial) electric blowers, specifically the VE and VEX series. These blowers are primarily used on marine vessels for air suction and ventilation in enclosed spaces such as WCs, kitchens, and engine rooms.

Construction Features: The VE series features a drum casing made of painted steel, while the VEX series uses stainless steel. The fan is made from polypropylene, suitable for temperatures ranging from -5°C to +80°C, and is dynamically and statically balanced.

Motor Specifications:

Direct Current: Equipped with a permanent magnet motor operating at 12/24V, with IP44 protection (IP55 optional), insulation class F, and continuous duty (S1).
Alternate Current: Features an induction motor with options for 230V single-phase or 230-400V, 400-690V three-phase, 50Hz, IP54-55 protection, insulation class F, and continuous duty (S1).

Accessories on Request: Available options include an aluminum fan, a bi-directional fan made of Nylon/Glass for equal performance in both flow directions, and an additional protection grid.

Flux Directions: When ordering, it is necessary to specify the flux direction, protection grid position, and blower execution. The directions include A-A1 for ventilator, P-P1 for extractor, and R-R1 for bi-directional flow.

Performance Data: The document provides detailed tables with performance metrics for various models, including voltage, power, absorption, RPM, noise level (dBA), maximum delivery (m3/min), and maximum pressure (mmH2O). Models range from VE/VEX 21 to VE/VEX 100, with specifications for both direct and alternate current operations.

Dimensions and Weights: Dimensions and weights for each model are included, with measurements in millimeters and weights in kilograms.

Overview: This document provides technical specifications and performance data for VE and VEX series helicoidal (axial) electric blowers used in marine pump and blower production. The blowers operate on alternate current (a.c.) and are designed for various applications requiring different power, pressure, and delivery capacities.

Specifications:

Models: VE and VEX series, including variations such as VE 30, VE 35, VE 40, VE 45, VE 50, VE 56, VE 63, VE 71, VE 80, VE 90, and VE 100.
Voltage: Options for 230M and 230÷400T.
Power and Absorption: Ranges from 0.18 kW to 11 kW, with corresponding absorption values in amperes.
RPM and Noise Levels: Operating speeds of 1400 rpm and 2800 rpm, with noise levels ranging from 58 dBA to 90 dBA.
Total Pressure: Varies across models, with specific pressure values provided in Pa and mmH2O.

Performance:

Delivery Capacity: Measured in cubic meters per hour (m3/h), with values provided for different pressure levels.
Pressure Levels: Detailed pressure data for each model, indicating performance at various operational points.

Dimensions and Weights:

Dimensions are provided in millimeters for each model, including details on the number and size of holes for mounting.
Weights are specified in kilograms, varying by model.

Flux Directions and Executions:

Details on the direction of airflow and the type of protection grid used for each model.

Catalog excerpts

Ventilatori elicoidali (assiali) / Helicoidal (axial) electric blowers Ventilatori elicoidali (assiali) largamente utilizzati sulle imbarcazioni per l’aspirazione e la ventilazione di aria nei locali chiusi (WC, cucine, sala macchine, ecc.). Helicoidal (axial) electric blowers widely used on board for suction and ventilation of air in closed environmental (WC, kitchens, engine rooms, etc.). CARATTERISTICHE COSTRUTTIVE CONSTRUCTION FEATURES Carcassa: Serie VE: lamiera di acciaio verniciato. Serie VEX: acciaio inox. Ventola: costruita in polipropilene (temperatura di esercizio: -5°C + 80°C), dinamicamente e staticamente bilanciata. Drum casing: VE series: made in painted steel sheet VEX series: made in stainless steel Fan: made in polypropylene (temperature range -5°C + 80°C), dynamically and statically balanced. Corrente Continua: Motore elettrico a magneti permanenti 12/24V, protezione IP44 (IP55 a richiesta), Classe di Isolamento F, Servizio continuo (S1). Direct Current: Permanent magnets motor 12/24 V, Protection IP44 (IP55 on request), Insulation Class F, Continuous Duty (S1). Corrente Alternata: Motore elettrico asincrono 230V monofase (M) / 230÷400V, 400÷690V trifase (T), 50Hz, protezione IP54÷55, Classe di Isolamento F, Servizio continuo (S1). Alternate Current: Induction electric motor, 230V single-phase (M) / 230÷400V, 400÷690V three-phase (T), 50Hz, Protection IP54÷55, Insulation Class F, Continuous Duty (S1). Ventola in alluminio Ventola bi-direzionale in NYLON / VETRO in grado di garantire le stesse prestazioni in entrambe le direzioni di flusso (flusso A: ventilatore + flusso P: estrattore). Temperatura di esercizio: -35°C + 110°C. Rete protettiva aggiuntiva Fan made in aluminium Bi-direction fan made in Nylon / Glass to grant the same performances in both directions of flux (flux A: ventilator + flux P: extractor). Temperature range: – 35°C + 110 °C. Additional protection grid FLUX DIRECTIONS Attenzione: la direzione di flusso, posizionamento rete protettiva e l’esecuzione del ventilatore deve essere necessariamente indicato in fase di ordine (vedere pag. 169 per ulteriori specifiche) Attention: the flux direction, protection grid position and the execution of the blower must be stated when the ordering (see page 169 for more specification) Flusso A-A1: ventilatore Flusso P-P1: estrattore Flusso R-R1: bi-direzionale (A & P) A-A1 flux: ventilator P-P1 flux: extractor R-R1 flux: bi-directional (A & P) MARINE PUMP AND BLOWER PRODUCTION

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Ventilatori elicoidali (assiali) / Helicoidal (axial) electric blowers PRESTAZIONI / PERFORMANCES Modello Type Potenza Power 12V-24V: CORRENTE CONTINUA / DIRECT CURRENT 230M, 50Hz: corrente alternata monofase / single-phase alternate current 230÷400T, 400÷690T 50Hz: corrente alternata trifase / three-phase alternate current A richiesta disponibili altri voltaggi a 50Hz e 60Hz / Available on request other voltages at 50Hz and 60Hz. MARINE PUMP AND BLOWER PRODUCTION

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Ventilatori elicoidali (assiali) / Helicoidal (axial) electric blowers CORRENTE CONTINUA (c.c.) / DIRECT CURRENT (d.c.) PRESTAZIONI / PERFORMANCES VE 21-12/24V Pressione Pressure Pressione Pressure Modello Type Potenza / Power Assorbimento Absorption HP kW (A) Modello Type Potenza / Power Assorbimento Absorption HP kW (A) Pressione totale Total pressure Pressione Pressure Pressione Pressure Pressione totale Total pressure Modello Type Modello Type Potenza / Power Assorbimento Absorption HP kW (A) Potenza / Power Assorbimento Absorption HP kW (A) 0,5 MARINE PUMP AND BLOWER PRODUCTION Pressione...

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Ventilatori elicoidali (assiali) / Helicoidal (axial) electric blowers CORRENTE CONTINUA (c.c.) / DIRECT CURRENT (d.c.) PRESTAZIONI / PERFORMANCES VE 35-12/24V Pressione Pressure Pressione Pressure Modello Type Potenza / Power Assorbimento Absorption HP kW (A) Pressione totale Total pressure Potenza / Power Assorbimento Absorption HP kW (A) 0,75 Pressione totale Total pressure Pressione Pressure Pressione Pressure Modello Type Modello Type Modello Type Potenza / Power Assorbimento Absorption HP kW (A) Potenza / Power Assorbimento Absorption HP kW (A) Pressione totale Total pressure Pressione...

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Ventilatori elicoidali (assiali) / Helicoidal (axial) electric blowers CORRENTE CONTINUA (c.c.) / DIRECT CURRENT (d.c.) PRESTAZIONI / PERFORMANCES VE 45-24V Pressione Pressure Pressione Pressure Modello Type Modello Type Potenza / Power Assorbimento Absorption HP kW (A) 0,5 Potenza / Power Assorbimento Absorption HP kW (A) 0,8 Pressione totale Total pressure Pressione totale Total pressure Pressione Pressure Pressione Pressure Modello Type Modello Type Potenza / Power Assorbimento Absorption HP kW (A) 1 Potenza / Power Assorbimento Absorption HP kW (A) 1 MARINE PUMP AND BLOWER PRODUCTION Pressione...

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Ventilatori elicoidali (assiali) / Helicoidal (axial) electric blowers CORRENTE CONTINUA (c.c.) / DIRECT CURRENT (d.c.) DIMENSIONI E PESI / DIMENSIONS AND WEIGHTS RETE DI PROTEZIONE PROTECTION GRID Corrente Current Fori Holes Modello Type Misure in millimetri (mm), dimensioni non impegnative / Measures in millimeter (mm), dimensions approximated MARINE PUMP AND BLOWER PRODUCTION

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Ventilatori elicoidali (assiali) / Helicoidal (axial) electric blowers CORRENTE ALTERNATA (c.a.) / ALTERNATE CURRENT (a.c.) PRESTAZIONI / PERFORMANCES VE 21-M/T Pressione Pressure Pressione Pressure Modello Type Potenza / Power Assorbimento Absorption HP kW (A) Modello Type Potenza / Power Assorbimento Absorption HP kW (A) Pressione totale Total pressure Pressione Pressure Pressione Pressure Pressione totale Total pressure Modello Type Modello Type Potenza / Power Assorbimento Absorption HP kW (A) Potenza / Power Assorbimento Absorption HP kW (A) MARINE PUMP AND BLOWER PRODUCTION Pressione totale...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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