Ea - EF/B - EF/D - EF/T

Product catalog summary

Overview

This technical document provides comprehensive specifications, dimensional data, weights, motor configurations, and performance characteristics for CORAL S.p.A. axial fans across multiple series, including EA, EF/D, EF/B, and EF/T. It also details special construction arrangements, advanced design options, and recommendations for industrial applications.

1. Dimensions and Weights

1.1 Series EA

Fan sizes range from EA 310 to EA 1250 with weights from 14 kg to nearly 300 kg depending on motor type and configuration.
Dimensions include diameters (d, d1, d2), distances (G, E, F), and mounting hole specifications, all in millimeters.
Weights include the motor and may vary based on motor brand.

1.2 Series EF/D

Fan diameters range from 310 mm up to 1800 mm, with weights approximately 40 kg to 800 kg, excluding weights for sizes 1400, 1600, and 1800 which require technical consultation.
Dimensional parameters cover diameters (d, d1, d2, D) and mounting hole details.

1.3 Series EF/B

Weights range from 58 kg to 669 kg depending on model size and motor.
Dimensions include diameters and flange details similar to other series.

1.4 Series EF/T

Fan sizes from 310 mm to 900 mm diameter are detailed, with motor types and mounting hole specifications.
Weights for larger sizes (1400 and 1600) are not provided and require special consultation.

2. Performance Data

2.1 EF/D and EA Series

Performance tables include airflow (Q in m³/s), static pressure (Ps), total pressure (Pt), power consumption (installed and absorbed kW), rotational speeds (rpm), and sound power levels (LWA in dB).
Motor power ranges from 0.05 kW to over 22 kW.
Sound levels range from 68 dB to over 105 dB.
Flow rate tolerance is ±5%.

2.2 EF/T Series

Similar performance parameters are provided, with motor power from 0.11 kW up to over 20 kW.
Sound power levels typically range from 72 dB to 98 dB.
Performance data for largest models (EF/T 1400 and 1600) require technical evaluation.

3. Construction Configurations and Special Applications

Five construction arrangements are described, adapting motor and fan configurations to application needs.
Special fan types include "Separate Flow Fans" designed for industrial ducting with aggressive media, protecting belts in belt-driven fans.
Custom dimensions and materials (aluminum, stainless steel) are available on request.

4. Advanced Design Features (EF/D Series)

Reversible Flow Fans: Impellers with symmetrical blades allow airflow reversal without performance loss, unlike standard impellers which lose 50% efficiency when reversed.
Adjustable Blade Angle: Blade pitch adjustable between 15° and 40° in 8 positions by hub removal, enabling performance tuning.
Two-Stage Counter-Rotating Axial System: Two fans mounted face-to-face with opposite rotation achieve up to three times the static pressure of a single fan at the same diameter and speed, with lower energy consumption and noise, and smooth airflow.

5. Notes and Recommendations

Performance data for large fan sizes (EF/D and EF/T 1400, 1600, 1800) must be confirmed with CORAL technical office before selection or installation.
Weights and dimensions may vary depending on motor brand; specifying motor details is critical.
Performance testing is based on flow condition A (reference not included).
Reversible and two-stage counter-rotating fans offer significant efficiency and noise advantages but require precise specification.

6. Summary

This document is a detailed technical reference for CORAL axial fans, supporting engineering design and selection across multiple series and configurations. It provides essential mechanical dimensions, weight data, motor specifications, and comprehensive performance characteristics including airflow, pressure, power consumption, and noise levels. Special design options and construction arrangements enable customization for diverse industrial ventilation applications, while critical notes emphasize the need for technical consultation on large models and the importance of motor specification for accurate weight and performance data.

Catalog excerpts

ESECUZIONE • Configuration • Arrangement • Ausfuhrung • Ejecucion MODELLO • Modele • Model • Modell • Modelo EA DIMENSION! D'INGOMBRO E PESI SERIE"EA"■ DIMENSIONS D'ENCOMBREMENT ET POIDS SERIE "EA" I OVERALL DIMENSIONS AND WEIGHT SERIES "EA"■ AUSMABE UND GEWICHTE SERIE "EA" DIMENSIONES QUE OCUPA YPESOS SERIE "EA" Tipo • Type • Type • Typ Tipo ■ Poids du ventilateur en kilos (equipe de moteur) *) Les donnees de cette colonne peuvent varier en fonction de la marque du moteur monte sur le ventilateur. ■ Ventilatorgewicht in kg (einschlieBlich Motor) *) Die Werte dieser Spalte konnen je nach am Ventilator verbauter Motorenmarke geringfugig abweichen. ■ Fan weight in kg (complete with motor) *) The data in this column may change in accordance with the make of motor installed on the fan. ■ Peso ventilador en kg (con motor) *) Los datos de esta columna pueden variar en funcion de la marca del motor montado en el ventila

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VENTILATOR! ASSIALI ■ VENTILATEURS AXIAUX AXIAL FANS IaXIALVENTILATOREN VENTILADORES AXIALES • Modele • Model • Modell • Modelo ESECUZIONE • Configuration • Arrangement • Ausfuhrung • Ejecucion DIMENSION! D'INGOMBRO E PESI SERIE"EA" ■ DIMENSIONS D'ENCOMBREMENT ET POIDS SERIE "EA" ■ AUSMABE UND GEWICHTE SERIE "EA" ■ OVERALL DIMENSIONS AND WEIGHT SERIES "EA" ■ DIMENSIONES QUE OCUPA Y PESOS SERIE "EA" ■ Poids du ventilateur en kilos (equipe de moteur) *) Les donnees de cette colonne peuvent varier en fonction de la marque du moteur monte sur le ventilateur. ■ Ventilatorgewicht in kg (einschlieBlich...

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VENTILATOR! ASSIALICARATTERISTICHE IN MANDATA VENTILATOR! SERIE "EF/D" e "EA" testate con flusso A (vedi pag. 5.3) ■ CARACTERISTIQUES AU REFOULEMENT VENTILATEURS SERIE "EF/D" et "EA" essayes avec flux A (voir page 5.3) ■ EIGENSCHAFTEN DER AUSBLASSEITE FUR VENTILATOREN DER REIHEN "EF/D" und "EA"gepruft mit Stromung A (siehe Seite 5.3) ■ OUTLET CHARACTERISTICS OF "EF/D" and "EA" SERIES FANS tested with flow A (see page 5.3) ■ CARACTERISTICAS EN IMPULSION DE LOS VENTILADORES SERIE "EF/D"y "EA" probadas con flujo A (ver pag. 5.3) ■ Pour EF/D1400, EF/D1600 et EF/D1800 les prestations doivent etre...

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VENTILATORI ASSIALI VENTILATEURS AXIAUX AXIAL FANS VENTILADORES AXIALES 6 APPLICAZIONI SPECIALI CORAL S.p.A. realizza anche esecuzioni speciali su specifica richiesta del cliente. APPLICATIONS SPÉCIALES CORAL S.p.A. also manufactures special systems in compliance with customer specifications. CORAL S.p.A. réalise également des configurations spéciales sur une demande spécifique émanant de la clientèle. SPEZIALANWENDUNGEN CORAL S.p.A. erfüllt auch Spezialanforderungen auf Kundenanfrage. SPECIAL APPLICATIONS APLICACIONES ESPECIALES CORAL S.p.A. construye también variantes especiales atendiendo...

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DIMENSIONI D'INGOMBRO E PESI SERIE "EF/B" ■ DIMENSIONS D'ENCOMBREMENT ET POIDS SERIE "EF/B" ■ AUSMABE UND GEWICHTE SERIE "EF/B" ■ OVERALL DIMENSIONS AND WEIGHT SERIES "EF/B" ■ DIMENSIONES QUE OCUPA Y PESOS SERIE "EF/B" ■ * Les donnees de cette colonne peuvent varier en fonction de la marque du moteur monte sur le ventilateur. ■ * Die Werte dieser Spalte konnen je nach am Ventilator verbauter Motorenmarke geringfugig abweichen. del motore montato sul ventilatore. ■ * The data in this column may change in accordance with the make of motor installed on the fan. ■ * Los datos de esta columna pueden...

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VENTILATOR! ASSIALI ■ VENTILATEURS AXIAUX AXIAL FANS IaXIALVENTILATOREN VENTILADORES AXIALES 5 ESECUZIONI COSTRUTTIVE DE! VENTILATOR! ASSIALI ■ CONFIGURATIONS DE CONSTRUCTION DES VENTILATEURS AXIAUX ■ CONSTRUCTION ARRANGEMENTS OF AXIAL FLOW FANS■ KONSTRUKTIVE AUSFUHRUNGEN DER AXIALVENTILATOREN ■ EJECUCIONES CONSTRUCTIVAS DE LOS VENTILADORES AXIALES MODELLO • Modele • Model• Modell • Modelo EF/D DIMENSION! D'INGOMBRO E PESI SERIE"EF/D" ■ DIMENSIONS D'ENCOMBREMENT ET POIDS SERIE "EF/D" I OVERALL DIMENSIONS AND WEIGHT SERIES "EF/D"■ AUSMABE UND GEWICHTE SERIE "EF/D" DIMENSIONES QUE OCUPA YPESOS...

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VENTILATORI ASSIALI VENTILATEURS AXIAUX AXIAL FANS VENTILADORES AXIALES Ventilatori EF/D a disegno Per soddisfare esigenze del cliente che prevedano dimensioni d’ingombro differenti da uelle standard. Ventilateurs EF/D sur dessin Pour répondre aux exigences des clients qui prévoient des dimensions différentes par rapport aux dimensions standards. EF/D fans upon specifications To meet the needs of customers requiring overall dimensions that differ from the standard values. Ventilatoren der Reihe EF/D nach Zeichnung Verwendung für kundenspezifische Anforderungen nach abweichenden Abmessungen. Ventiladores...

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VENTILATORI ASSIALI VENTILATEURS AXIAUX AXIAL FANS VENTILADORES AXIALES MODELLO • Modèle • Model • Modell • Modelo • N° Trous Ø • Holes no. Ø • Bohrungsanzahl Ø • N° Agujeros Ø OVERALL DIMENSIONS AND WEIGHT SERIES “EF/T” DIMENSIONES QUE OCUPA Y PESOS SERIE “EF/T” Motore • Moteur • Motor • Motor • Motor Peso ventilatore in kg (completo di motore) / non fattibile per taglia 1400 e 1600. / funzione della marca del motore montato sul ventilatore. 5.10

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