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Radial Fans(Belt driven)

Radial Fans(Belt driven)
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Radial Fans(Belt driven)

Product catalog summary
Safety Information and Warranty
Installation and electrical work must be conducted by qualified personnel in compliance with local laws. Only the current installation and operating instructions are valid. Rosenberg reserves the right to modify construction and design without prior notice. The fans are CE-marked and come with an EU manufacturer's declaration. The warranty does not cover improper use, incorrect installation, normal wear, and other specified conditions.
Technical Description
Rosenberg radial fans are designed for modern ventilation and air handling, offering high efficiency, quiet operation, and interchangeable casings. The casing is made from galvanized sheet metal, and impellers are balanced according to DIN/ISO standards, made from materials like aluminum, galvanized steel, or polyamide.
Components and Specifications
The casing is constructed from galvanized sheet metal with side plates for fixing stands. Impellers are balanced and made from materials like aluminum or polyamide. The direction of rotation is clockwise, and incorrect rotation can overload the motor. Inlet cones are aerodynamically shaped for optimal airflow.
Shafts and Bearings
Shafts are standardized for V-belt pulleys and protected against corrosion. Precision bearings are designed for a minimum lifespan of 20,000 hours, with radial clearance to compensate for misalignments. Bearings are secured with an eccentric tension ring.
Additional Features
Protection against accidental contact and explosion protection are provided. Air performance curves and noise levels are specified, with testing devices for air volume. Dimensions and weights are detailed for various sizes and configurations.
Specifications
Fans are designed to operate in temperatures from -20°C to +80°C. Adherence to assembly and service instructions for belt drives is crucial for long-term quality. Fans use sealed, maintenance-free grooved ball bearings, with different housing types depending on the size.
Procedures
Standard IEC three-phase motors with protection class IP55 and insulation class F are used for motor and electrical connections. Motors are equipped with PTC thermo-protectors and suitable for frequency converter operation. Detailed manufacturer instructions must be followed during installation and maintenance.
Motor Selection
Motor power is calculated by multiplying shaft power by a factor to account for belt drive and inlet losses. Specific factors for different sizes and maximum allowable startup times and currents are provided.
Speed Control
Speed control is achieved through frequency converters, with a maximum frequency of 50Hz. Exceeding this frequency can cause thermal overload.
Belt Drive
V-belts are economical and low-maintenance, while flat belts offer higher efficiency at high speeds but require more maintenance.
Protection Against Accidental Contact
Fans are not equipped with finger protection as standard. Protective measures must be installed according to DIN EN 292 and DIN EN 294 standards.
Explosion Protection
Fans used in explosive environments must comply with 94/9/EC (Atex 100) standards. Zones of explosion hazard and responsibilities for compliance are detailed, along with potential ignition sources and material considerations to reduce ignition risk.
Technical Specifications
Fans are manufactured from galvanized sheet and conductive synthetic materials. Inlet cones are made from conductive synthetic material up to size 355 and from size 400, they are made from galvanized sheet steel with a copper strip at the potential contact surface.
Safety and Operational Guidelines
Fans of series TRZ/TRE Ex and HRZS/HRES Ex are categorized under equipment group 3 for use in Zone 2 with temperature class T1-T3 according to 94/9/EC. Key operational guidelines include:
  • Maximum allowable ex-speed is 83% of the standard speed.
  • Maximum power is 15kW.
  • Fans must be used only with a horizontal shaft.
  • Belt drive must be calculated for a theoretical bearing lifetime of Lh10 = 20,000 hours.
  • Only certified conductive belts and motors approved for Zone 2 should be used.
  • Filters are necessary if potentially sparking particles are present in the airflow.
  • Fans must be protected against foreign objects falling in or being absorbed from the inlet.
Air Performance Curves
The air performance curves are established using the inlet test method according to DIN 24163, valid for air with a density of 1.2 kg/m³. The curves show the total pressure increase as a function of the volume flow.
Noise Level Data
Noise measurements are conducted according to DIN 45635, part 38. The A-weighted free outlet sound power level LWA6 is provided, and the free inlet sound power level LWA7 can be calculated. For fans with single inlet, data can be used with a precision of +/- 2dB.
Air Volume Testing Device
The device for fans with backward curved impellers allows for direct control and determination of the volume flow during operation. The air volume is calculated based on the differential pressure between the static pressure at the inlet cone and the static pressure on the suction side.
Dimensioning Example
An example is provided for a requested operating point of 10,000 m³/h, 1000 Pa, selecting HRZS 450. Efficiency, dynamic pressure, shaft power, and sound power level are calculated for this operating point.
Specifications
The document outlines specifications for various radial fans, detailing their maximum speeds, power limitations, impeller diameters, and the number of plates. Each fan model, such as TRE 500, TRE 560, TRE 630, etc., has specific parameters like maximum speed, power delimitation, and speed limitations for different types.
Performance Data
Performance charts are provided for each fan model, showing relationships between volume flow, total pressure, dynamic pressure, shaft power, sound power level, and efficiency. These charts help in understanding the operational capabilities and efficiency of each fan model.
Construction and Materials
The fans are constructed with high-efficiency impellers made from materials like seawater-resistant aluminum or glass fiber-reinforced polyamide. The casing is made from galvanized sheet steel, with different models featuring foot angles or rectangular frames. For explosive atmospheres, impellers are epoxy-coated, and inlet cones are made from brass or galvanized steel with copper plating.
Operational Guidelines
Fans used in explosive atmospheres must operate at reduced speeds, not exceeding 83% of the maximum allowable speed. The document specifies the use of dynamically balanced impellers and low-noise ball bearings for smooth operation. Fans and motors are mounted on a shared structure with vibration insulators.
Drive and Control Systems
The fans use a V-belt drive system with Taperlock clamping sleeves. Motors are standard IEC-compliant, suitable for frequency converter operation, and protected to IP 55 standards. Optional cabling for frequency converter control is available, with provisions for handling explosive atmospheres using pressurized motor enclosures.
Additional Features
Optional features include a ring measurement line for differential pressure determination and the possibility of re-lubricating bearings in certain models. The document also provides a call for tender for specific fan types, detailing the requirements and specifications for procurement.
Specifications
The document outlines the specifications for radial fans, specifically the TRE/TRZ models. These fans can be single or double inlet, with impellers made of galvanized sheet steel and forward-curved blades. The casing is also made of galvanized sheet steel, with different models featuring foot angles or rectangular frames.
Procedures and Standards
For explosive zone 2 atmospheres, inlet cones up to construction size 355 are made of conductive synthetic material, while sizes 400 and above use galvanized sheet steel plated with copper ribbon. The fans are dynamically balanced according to DIN/ISO 1940 grade G 2.5 or 6.3, and equipped with low-noise ball bearings. The motors are standard IEC motors, German brand-name products, with protection class IP 55, suitable for frequency converter operation.
Recommendations
When using a frequency converter, optional cabling is recommended to a device circuit breaker with a leading auxiliary contact via shielded cable. For explosive atmospheres, a motor in pressure-resistant encapsulated execution (EEx IId) is used.
Dimensions and Weights
The document provides detailed dimensions and weights for various models and sizes of fans, including HRZS, HRZP, and TRZ, ranging from sizes 160 to 1000. Each size has specific weight details for different models, indicating the total weight in kilograms.
Key Data from Tables
The tables provide specific measurements for fan components, such as the fan side part dimensions for different sizes, indicating parameters like A, B, F1, F2, G1, G2, X1, X2, Y1, and Y2, with corresponding values for each size.
Specifications
The document provides detailed specifications for various sizes of equipment, including dimensions and construction types. Sizes range from 160 to 1000, with specific configurations such as motor-driven rocker dolly switch, motor slide, and welded base frame.
Procedures
Instructions are given for altering measurements to accommodate technical improvements. The document outlines the construction methods for different equipment sizes, specifying the use of motor-driven rocker dolly switches for sizes 160-315, motor slides for sizes 355-630, and welded base frames for sizes 630-1000.
Standards and Recommendations
There are specific recommendations for the use of different equipment sizes, such as size 160 only for TRZ and size 180 only for HRZS, HRZP, and TRZ. All models from size 200 upwards are applicable for all types.
Key Data from Tables
The tables provide comprehensive measurements for various equipment sizes, including dimensions such as H, H1, H2, L, L1, L2, SL, and Amin (minimal center distance). These measurements are crucial for ensuring proper installation and operation.
Accessories
The document lists various accessories available for the equipment, including outlet collars, inlet flanges, base frames, motor fixation to frames, service access, condensate drains, belt protection, shaft protection, inlet guards, higher antispark protection, greasable bearings, volume flow measuring instruments, protection against corrosion, and sound dampers.
Critical Information
It is important to note the reserved right to alter measurements without notice for technical improvements. Additionally, the document emphasizes the importance of adhering to the specified configurations and accessories to ensure optimal performance and safety.
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Catalog excerpts

Radial Fans(Belt driven)-1

Rosenberg Ventilatoren GmbH Maybachstraße 1/9 D-74653 Künzelsau-Gaisbach Fon +49(0)7940 / 142-0 Fax +49(0)7940 / 142-125 www.rosenberg-gmbh.com [email protected] R A D I A LV E N T I L A T O R E N M I T R I E M E N T R I E B R A D I A L F A N S , B E LT D R I V E N ECOFIT ETRI T H E A I R M O V E M E N T G R O U P

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Radial Fans(Belt driven)-2

Inhaltsverzeichnis content 3 Seite / page Sicherheitshinweise, Gewährleistung Safety information, guaranteed values 4 Toleranzen, Normen, QMS Tolerances, standards, QMS 5 Technische Beschreibung Technical description Typenübersicht Overview 6 Typenschlüssel Reference code 7 Allgemeines Generally 8 Gehäuse Casing 8 Laufrad Impeller 8 Drehrichtung Direction of rotation 8 Einströmdüsen Inlet cones 8 Wellen Shafts 9 Lagerung Bearing application 9 Motoren und elektrischer Anschluss Motor and electrical connection 10 Motorauswahl Motor selection 10 Drehzahlsteuerung Speed control 11 Riementrieb Belt...

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Radial Fans(Belt driven)-3

Sicherheit und Gewährleistung safety and guaranteed values 4 Sicherheitshinweise, Gewährleistung Safety information, guaranteed values Bitte beachten Sie beim Einbau und Betrieb von Rosenberg- Ventilatoren folgende Hinweise: Please observe the following information prior to installation and operation of Rosenberg fans Montage- und Elektroarbeiten nur durch ausgebildetes und eingewiesenes Fachpersonal und nach den jeweils zutreffenden örtlichen Vorschriften oder Normen. Installation and electrical installation work should only be performed by skilled workers in accordance with applicable local...

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Radial Fans(Belt driven)-4

rosenberg Technische Beschreibung technical description Toleranzen, Normen, QMS Kundennahe und qualitativ hochwertige Produktion ist unser oberstes Ziel. Der kontinuierliche Informationsfluss und eine gute Zusammenarbeit mit Ihnen, sehr geehrter Kunde, und unseren Mitarbeitern ist uns sehr wichtig, um gemeinsam Produkt- und Qualittsverbesserungen vorzunehmen. Moderne Prfstande, computergesteuerte Fertigungsmaschinen und eigenverantwortliche Arbeitsgruppen geh๴ren ebenso dazu wie das Einbinden von MaBnahmen fur hhere Qualitt und Umweltschutz. Die Zertifizierung gem䠠l DIN EN ISO 9001 und die Mitgliedschaft...

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Radial Fans(Belt driven)-5

Technische Beschreibung technical description 6 Typenübersicht Overview HRZS HRZS Riemengetriebener Radialventilator zweiseitig saugend mit rückwärts gekrümmtem Hochleistungslaufrad aus Aluminium. Belt driven radial fan double inlet with backward curved high efficiency aluminum impeller. HRES HRES Riemengetriebener Radialventilator einseitig saugend mit rückwärts gekrümmtem Hochleistungslaufrad aus Aluminium. Belt driven radial fan single inlet with backward curved high efficiency aluminum impeller. HRZP HRZP Riemengetriebener Radialventilator zweiseitig saugend mit rückwärts gekrümmtem Hochleistungslaufrad...

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Radial Fans(Belt driven)-6

Technische Beschreibung technical description 7 Typenschlüssel reference code H R Z S 450 3 R 0 0 0 H Hochleistungslaufrad (rückwärtsgekrümmt) backward curved impeller T Trommelläufer (vorwärtsgekrümmt) forward curved impeller R Riementrieb belt driven Z Zweiseitig saugend double inlet E Einseitig saugend single inlet S Standard Alu-Laufrad Aluminium impeller P Kunststoff-Laufrad Plastic impeller 450 Radnenngröße impeller diameter 01 Mit Normausblasflansch with standard outlet flange 03 Mit Normausblasflansch und losen Füßen with standard outlet flange and loose stands 05 Mit Normausblasflansch...

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Radial Fans(Belt driven)-7

Technische Beschreibung technical description 8 Allgemein Generally Rosenberg Radial-Ventilatoren entstanden in fortwährender, systematischer Entwicklungsarbeit speziell für die Anforderungen der modernen Lüftungs- und Klimatechnik. Sie zeichnen sich aus durch: - hohe Wirkungsgrade, wodurch eine wirtschaftliche Betriebsweise ermöglicht wird - ausgeprägte Laufruhe und geringes Betriebsgeräusch - Austauschbarkeit zwischen den Baureihen durch einheitliche Gehäusegeometrien - Kompakte Bauweise mit Bauteilabstufungen nach DIN 323 R20. Die Nenngröße entspricht dabei dem Laufradaußendurchmesser Rosenberg...

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Radial Fans(Belt driven)-8

Technische Beschreibung technical description 9 Bei TRE/TRZ Ex 160 – 355 wird ein leitfähiger Kunststoff eingesetzt. Die Düsen für Ex-Einsatz aus verzinktem Stahlblech sind mit einem Kupferstreifen belegt. For TRE/TRZ Ex 160 - 355 a conductive synthetic material is used. The inlet cones out of galvanized sheet metal for usage in potentially explosive atmospheres are coated with a copper strip. Wellen Shaft Zur Aufnahme der Keilriemenscheiben sind beide Wellenenden nach genormten Durchmessern gemäß DIN 748, Blatt 1 ausgeführt und haben eine Passfedernut nach DIN 6885, Blatt 1. Als Korrosionsschutz...

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Radial Fans(Belt driven)-9

Technische Beschreibung technical description 10 Lagerhalter Bearing support Die Ausführungen 01, 03, und 05 sind bis zur Baugröße 315 mit stabilen 3-armigen, bei BGr 355 – 630 mit 4- armigen Lagerstreben aus verzinktem Stahlblech ausgerüstet. The types 01,03 and 05 up to size 315 are equipped with stable 3-branched, from size 355 to size 630 with stable 4-branched strut housings made of galvanized sheet steel. Von Baugröße 710 bis 1000 wird die Bauform 07 mit einer stabilen Schweißkonstruktion ausgeführt. Für kleinere Baugrößen ist diese Bauform auf Anfrage erhältlich. From size 710 to 1000...

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Radial Fans(Belt driven)-10

Technische Beschreibung technical description 11 ! Die angegebenen Werte beziehen sich auf die mechanische Stabilität ! Die Vorschriften des örtlichen EVU sind zu beachten (in der Regel sind Motoren ab 3 kW durch ein Sanftanlaufverfahren zu starten) ! ! The indicated data refer to the mechanical stability ! The guidelines and directives of the electric supply company have to be respected (usually motors bigger than 3kW have to be started by smooth start). BGr 160 180 200 225 250 280 315 355 400 max. Motorleistung max. motor power 3 kW 3 kW 3 kW 3 kW 3 kW 4 kW 4 kW 4 kW 4 kW BGr 450 500 560 630...

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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.