Catalogue compact industrial centrifugal fans

Product catalog summary

Type Code Explanation:
The document outlines the type code for compact industrial centrifugal fans, detailing aspects such as product segment, type, construction, drive options, size, rotating direction, and diameter ratio.

General Information:
The document provides an overview of the CREM (direct drive) and CRER (belt drive) series of compact industrial centrifugal fans, designed for clean and slightly dusty air. These fans offer high efficiency, low noise, and are available in 52 types with flow rates up to 85000 m³/h and pressures up to 10000 Pa. They operate within a temperature range of -20 to +80 °C.

Casing and Impeller:
The casing is made of welded and coated steel, with gas-proof options. The impeller features backward curved blades, dynamically balanced for optimal performance, with five different diameter ratios available.

Drive and Performance:
Fans use maintenance-free 3-phase motors suitable for continuous operation, with performance adjustments possible via frequency converters. They are tested according to ISO 5801 standards.

Noise and Tolerances:
Noise levels are indicated as A-rated sound power levels, meeting accuracy class 2 according to DIN 24166, with ATEX versions available for explosive environments.

Accessories:
Available accessories include protective grids, flanges, compensators, condensate drains, inspection flaps, vibration dampers, pipe extensions, and repair switches.

Company Overview:
Pollrich DLK Fan Factories has over 140 years of expertise in industrial fan manufacturing, emphasizing quality, customer needs, and innovative solutions, supported by a comprehensive service package and R&D department.

Electrical Specifications:
Fans have an external motor terminal box rated at protection class IP55 and are designed to operate at 60Hz.

Air Performance Curves:
Performance curves illustrate total pressure increase as a function of flow rate, measured according to ISO 5801 standards.

Sound Levels:
Performance curves include A-rated sound power levels according to VDI 3731 standards.

Tolerances:
Fans adhere to accuracy class 2 according to DIN 24166, with class 3 for ATEX designs.

ATEX Compliance:
Fans can be supplied in explosion-proof designs according to directive 94/9/EC for various zones and categories.

Performance Range:
The document lists various models and their performance ranges, including direct and belt drive options.

Specifications:
Details specifications for the CREM_25_28_40_56 series, with sizes ranging from DN 400 to 1250, suitable for temperatures up to 80°C.

Components and Accessories:
Lists components and accessories for both suction and pressure sides, designed to prevent ingress and reduce sound.

Technical Data:
Provides detailed technical data for different fan sizes, ensuring compatibility and performance standards.

Standards and Compliance:
Fans are dynamically balanced according to DIN ISO 1940-1, with compliance to DIN EN 294 for protective guards.

Recommendations:
Adherence to installation and operational guidelines is recommended for optimal performance and longevity.

Sound Calculations:
Explains sound calculations, including sound pressure levels and A-weighting.

Explosion Protection:
Fans must comply with Directive 94/9/EC for explosive environments, detailing device group classifications and protection types.

Similarity Laws and Non-Dimensional Numbers:
Introduces similarity laws for converting operational data and non-dimensional numbers for comparing machines.

Cordier Diagram:
Used to determine optimal fan operation and design flow machines.

System Characteristics and Operating Behavior:
Discusses system pressure loss and its impact on flow behavior, recommending disturbance-free inflow and outflow.

Units and Conversion Factors:
Explains SI-prefixes, units of length, angle conversions, and pressure conversion.

Density Conversion:
Provides equations for converting operating density to reference density for accurate measurements.

Service and Support:
PollrichDLK offers a comprehensive service package, including technical advice, assembly, commissioning, and maintenance, available 24/7 worldwide.

Catalog excerpts

Catalogue compact industrial centrifugal fans-1

Kompakte Industrie Compact Industrial centrifugal fans

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Catalogue compact industrial centrifugal fans-3

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Catalogue compact industrial centrifugal fans-4

ANLAGENBAU | PLANT & BUILDING Marke und Produkt | Trademark and product Forschung & Entwicklung | Research & Development Schwere Industrie-Radialventilatoren | Heavy-duty industrial centrifugal fans Kompakte Industrie-Radialventilatoren | Compact industrial centrifugal fans Axialventilatoren | Axial fans Einbauventilatoren | Plug fans Entrauchungsventilatoren | Smoke extraction fans Service | Service Die Markenwelt von Pollrich DLK Fan Factories The Trademark Pollrich DLK Fan Factories Unter der gemeinsamen Marke „Pollrich DLK Fan Factories“ vereinen wir die mehr als 140 Jahre Kompetenz im Industrieventilatorenbau...

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Marke und Produkt | Trademark and product turmechanischen Eigenschaften, sowie Rohr- und Kammerprüfstände nach internationalem Standard ISO 5801, ausgestattet mit modernster Messtechnik zur Bestimmung der aerodynamischen und aeroakustischen Charakteristiken. Qualität und Kunde stehen im Mittelpunkt unserer Unternehmensphilosophie. Dabei beschränkt sich die Qualität nicht nur auf unsere Produkte und die nach DIN ISO 9001 zertifizierten Abläufe. Unser Qualitätsanspruch umfasst auch die Arbeitsergebnisse jedes einzelnen Mitarbeiters. Diesen Qualitätsanspruch leben unsere Mitarbeiter nach innen und...

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Allgemeine Informationen | General information Einsatzbereich: Die einseitig saugenden Hochleistungs-Radialventilatoren der Baureihe CREM (Direktantrieb) und CRER (Riemenantrieb) eignen sich zur Förderung von sauberer und leicht staubhaltiger Luft. Die Laufräder mit rückwärts gekrümmten Schaufeln garantieren hohe Wirkungsgrade bei niedrigem Geräuschniveau. Insgesamt stehen 52 Typen mit Förderleistungen bis 85000 m³/h und Drücken bis 10000 Pa zur Auswahl. Umfangreiches Zubehör und Sonderausführungen sorgen für die Anpassungsmöglichkeit an die unterschiedlichsten Anforderungen. Zulässige Fördermitteltemperatur:...

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Allgemeine Informationen | General information Bei Keilriemenantrieb: inklusive Grundrahmen aus stabilen U-Profilen, geschweißt und beschichtet, Riementrieb und Riemenschutz, mit Motorspannschienen zur stufenlosen Einstellung der Riemenspannung. Leistungsanpassung: Unsere Motoren sind serienmäßig mit Kaltleitern für den Betrieb mit Frequenzumrichtern ausgestattet. Die Maximaldrehzahl des Laufrads und die max. Leistungsabgabe des Motors sind zu beachten. Serienmäßig ist der Betrieb bei 50Hz und 60Hz möglich. Elektrischer Anschluss: Am außenliegenden Motorklemmenkasten in Schutzart IP55. Luftleistungskennlinien:...

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Leistungsübersicht | Performance range Direktantrieb Direct drive FU* / Riemen FC */ Belt drive Direktantrieb Direct drive FU* / Riemen FC */ Belt drive Direktantrieb Direct drive FU* / Riemen FC */ Belt drive Direktantrieb Direct drive FU* / Riemen FC */ Belt drive FU* / Riemen FC */ Belt drive Seite | Page Maßblätter | Dimension sheets Direkt- und Riemenantrieb | Direct- and beltdrive Seite | Page Zubehör | Accessories Direkt- und Riemenantrieb | Direct- and beltdrive

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