PRA
PRA
The document describes a fan system suitable for low to high flow rates and average pressures, ideal for pneumatic transport, fumes, and fine dust. It can handle solid materials mixed with air, such as chips and sawdust, without direct contact with the fan.
Blade Type
The fan uses a curved, backward (negative) blade design.
Standard Constructional Arrangements
Standard configurations include Arrangements 1, 4, 5, 8, 9, and 12. The fan and its impeller are made from Fe360 plate, balanced both statically and dynamically.
Operating Specifications
The fan operates with inlet air at 20°C, 0 meters above sea level, and a density of 1.205 kg/m³. Noise levels are measured as sound power LwA [dB(A)] in a free field with a ducted fan.
Orientations
Available in No.8 RD (clockwise) and No.8 LG orientations. Sizes 250-400 are bolted orientable, while sizes 450-1250 have a fixed orientation.
Special Applications
Refer to pages 2.20 to 2.34 for special applications and construction materials.
Impeller Classes
A table of impeller classes for standard conditions is provided. For heavy-duty conditions, contact CORAL Customer Service for suitable impeller types.
Performance Characteristics
Includes tables of performance characteristics, maximum RPM for various sizes and classes, noise levels, and tolerances. Data on flow rates (Q) and pressure (pt) for different models and configurations are included.
Temperature and Speed Degradation
Speed degradation is necessary for temperatures above 60°C, with specific percentages for temperatures up to 500°C.
The document details specifications and dimensions for fan models PRA560, PRA630, PRA700, PRA800, PRA900, PRA1000, PRA1120, and PRA1250, including type, weight, and motor specifications.
Specifications
Each model is listed with dimensions and weights. Tables detail type, weight (in Kg), and motor specifications (PD2, Kgf x m2). Dimensions include various height and width measurements.
Key Features
- Fans are non-revolvable once installed.
- Weight includes the motor.
- Information is provided in multiple languages.
Dimensions and Weight/Working Curves
Sections on dimensions and weight/working curves for each model provide measurements and performance curves for installation and planning.
Additional Information
The document is multilingual, with information in English, French, German, and Spanish. It includes technical drawings with specific installation measurements.
Catalog excerpts
CAMPO D'IMPIEGO E CARATTERISTICHE Campo di lavoro Portate piccole-medie-alte. Pressioni medie. Curva, rovescia (negativa), vedi pag. 2.2. Per trasporto pneumatico, fumi, polveri fini. Adatto al trasporto di materiali solidi in miscela con aria, trucioli e segatura con ventilatore non attraversato. Esecuzioni costruttive standard Es.1-Es.4-Es.5-Es.8-Es.9-Es.12, vedi pag. 2.5 - 2.6. Temperature del fluido standard -10++60°C. Per altre temperature vedi da pag. 1.12 a pag. 1.15. Ventilatore in lamiera di Fe360, girante in Fe360 equilibrata staticamente e dinamicamente. Per altri materiali vedi da...
Open the catalog to page 2
CAMPO D’IMPIEGO E CARATTERISTICHE DOMAIN DE TRAVAIL ET CARACTERISTIQUES FIELD OF OPERATION AND FEATURES CAMPO DE TRABAJO Y CARACTERISTICAS Konstruktive Standardausführungen Variantes constructivas estándares Temperaturas del fluido estándares Niedrige - mittlere - grosse Fördermengen. Mittlere Drücke. Kurve, rückwärts gekrümmt (negativ), siehe Seite 2.2. Zum Transport von Luft, Rauch, Feinstaub. Zum Transport von in Luft enthaltenen Feststoffen, Spänen und Sägestaub bei nicht direkt durchströmten Ventilator geeignet. Ausf. 1-Ausf. 4-Ausf. 5-Ausf. 8-Ausf. 9-Ausf. 12, siehe Seiten 2.5 - 2.6. -10...
Open the catalog to page 3
CARATTERISTICHE IN MANDATA CARACTERISTIQUES EN SOUFFLAGE Tipo • Type • Type • Typ • Tipo P inst. [kW] Tolleranza sulla portata ±5% • Tolérance sur le débit ±5% • Load tolerance ±5% • Durchsatztoleranz ±5% • Tolerancia respecto caudal ±5% Motore • Moteur • Motor • Motor • Motor Ventilatore • Ventilateur • Fan • Ventilator • Ventilador DELIVERY CHARACTERISTICS Il livello di pressione sonora ponderato A, LpA (cap.14), corrisponde al valore rilevato, nelle condizioni di prova, nel punto di massima rumoros
Open the catalog to page 4
CARATTERISTICHE IN MANDATA CARACTERISTIQUES EN SOUFFLAGE DELIVERY CHARACTERISTICS Le niveau de pression sonore pondérée A, LpA (chap. 14), correspond à la valeur relevée dans les conditions d’essai au point de niveau sonore maximum. The A-weighted sound power level, LpA (Chap.14), is the value measured in test conditions at the point of maximum noise level. Der nach A bewertete Schalldruckpegel LpA (Kap. 14) entspricht in den Testbedingungen dem höchsten gemessenen Wert des Geräuschpegels.. El nivel de presión sonora ponderado A, LpA (cap. 14), corresponde al valor medido, en las condiciones...
Open the catalog to page 5
CARATTERISTICHE IN ASPIRAZIONE CARACTERISTIQUES EN FAIT D'ASPIRATION Tipo • Type • Type • Typ • Tipo SUCTION CHARACTERISTICS Tolleranza sulla portata ±5% • Tolérance sur le débit ±5% • Load tolerance ±5% • Durchsatztoleranz ±5% • Tolerancia respecto caudal ±5% Motore • Moteur • Motor • Motor • Motor Ventilatore • Ventilateur • Fan • Ventilator • Ventilador Il livello di pressione sonora ponderato A, LpA (cap.14), corrisponde al valore rilevato, nelle condizioni di prova, nel punto di massima rumoros
Open the catalog to page 6
CARATTERISTICHE IN ASPIRAZIONE CARACTERISTIQUES EN FAIT D'ASPIRATION SUCTION CHARACTERISTICS Le niveau de pression sonore pondérée A, LpA (chap. 14), correspond à la valeur relevée dans les conditions d’essai au point de niveau sonore maximum. The A-weighted sound power level, LpA (Chap.14), is the value measured in test conditions at the point of maximum noise level. Der nach A bewertete Schalldruckpegel LpA (Kap. 14) entspricht in den Testbedingungen dem höchsten gemessenen Wert des Geräuschpegels.. El nivel de presión sonora ponderado A, LpA (cap. 14), corresponde al valor medido, en las condiciones...
Open the catalog to page 7
DIMENSION! D'INGOMBRO E PESI/CURVE DI FUNZIONAMENTO ■ DIMENSIONS D'ENCOMBREMENT ET POIDS/COURBES DE FONCTIONNEMENT OVERALL DIMENSIONS AND WEIGHT/WORKING CURVES ■ AUSMARE UND GEWICHTE/FUNKTIONSKURVEN DIMENSIONES QUE OCUPA Y PESOS/CURVAS DE FUNCIONAMIENTO I Der Ventilator ist drehbar Das Gewicht im Tafel schlieBt den Motor ein Il ventilatore e orientabile • Peso in tabella comprensivo di motore ■ Le ventilateur est orientable ■ The fan is revolvable Le poids dans le tableau inclut le moteur The weight indicated in the table includes motor El ventilador es orientable El peso en la tabla incluye...
Open the catalog to page 8
■ DIMENSIONS D'ENCOMBREMENT ET POIDS/COURBES DE FONCTIONNEMENT OVERALL DIMENSIONS AND WEIGHT/WORKING CORVES ■ AUSMABE UND GEWICHTE/FUNKTIONSKURVEN DIMENSIONES QUE OCUPA Y PESOS/CURVAS DE FUNCIONAMIENTO I Der Ventilator ist drehbar Das Gewicht im Tafel schlieBt den Motor ein Il ventilatore e orientabile • Peso in tabella comprensivo di motore ■ Le ventilateur est orientable ■ The fan is revolvable Le poids dans le tableau inclut le moteur The weight indicated in the table includes motor El ventilador es orientable El peso en la tabla incluye el motor Ulteriori informazioni e quote: ■ Ulterieures...
Open the catalog to page 9
DIMENSION! D'INGOMBRO E PESI/CURVE DI FUNZIONAMENTO ■ DIMENSIONS D'ENCOMBREMENT ET POIDS/COURBES DE FONCTIONNEMENT OVERALL DIMENSIONS AND WEIGHT/WORKING CURVES ■ AUSMARE UND GEWICHTE/FUNKTIONSKURVEN DIMENSIONES QUE OCUPA Y PESOS/CURVAS DE FUNCIONAMIENTO I Der Ventilator ist drehbar Das Gewicht im Tafel schlieBt den Motor ein Il ventilatore e orientabile • Peso in tabella comprensivo di motore ■ Le ventilateur est orientable ■ The fan is revolvable Le poids dans le tableau inclut le moteur The weight indicated in the table includes motor El ventilador es orientable El peso en la tabla incluye...
Open the catalog to page 10
DIMENSIONI D’INGOMBRO E PESI/CURVE DI FUNZIONAMENTO DIMENSIONS D’ENCOMBREMENT ET POIDS/COURBES DE FONCTIONNEMENT OVERALL DIMENSIONS AND WEIGHT/WORKING CURVES AUSMAßE UND GEWICHTE/FUNKTIONSKURVEN DIMENSIONES QUE OCUPA Y PESOS/CURVAS DE FUNCIONAMIENTO 1031 Il ventilatore è orientabile • Peso in tabella comprensivo di motore MOTORE Motor Ulteriori informazioni e quote: El ventilador es orientable RD135 LG135 El peso en la tabla incluye el motor Ultérieures informations et cotes: Further information and sizes: Weitere Infos und Größen: Más informaciones y medidas: 542 747 PESO Weight Der Ventilator...
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