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Centrifugal roof fan technical datasheet detailing construction, electrical specifications, performance metrics, and compatible roof mounting accessories.
Type: DVNI 500 E4 30
Item number: 145090
Manufacturer: ruck Ventilatoren GmbH
Address: Max-Planck-Str. 59, 7944 Boxberg, Germany
Telephone: 07930-9211300
Website: www.ruck.eu
Material: Weather-resistant aluminium AlMg3 with 40mm mineral wool insulation
Dimensions: 984x984x776 mm
Weight: 88.0 kg
Rated voltage: 230 V, 1~
Rated frequency: 50 Hz
Rated power: 1384 W
Max current: 7.6 A
Rated speed: 1370 min-1
Protection class motor: IP 54
Ambient temperature max.: 45 °C
Medium temperature max.: 120 °C
Inlet sound power level: 76 dB(A)
Outlet sound power level: 76 dB(A)
Efficiency static max.: 47.8 %
Efficiency total max.: 49.0 %
Standards: VDI 2052, CE marking EMC Directive 2004/108/EC, Machinery Directive 2006/42/EC, Directive 2009/125/EC (Reg.1253/2014/EU)
Accessories: DSF 450-10, DSF 450-12 up to 19, DSS 450-10, DSS 450-12 up to 19, DAP 450, DVK 400 10, DAS 400 F4, DAF 400, TEM 100, TEM 100G, TES 100
Price: 8 / 10 USD
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The product description is provided for reference. Actual content and formatting may differ slightly.
Centrifugal Roof Fan DVNI 280 D2 30 with Backward Curved Impeller and Vertical Discharge
Year: 2026
Manufacturer: ruck Ventilatoren GmbH
Item number: 145036
Type: DVNI 280 D2 30
Material: Weather-resistant aluminium AlMg3 with 40mm mineral wool insulation
Motor: IEC three-phase, external to airstream, ball bearings with lifetime lubrication
Protection: IP55 motor, grille-protected air outlet
Accessories: Roof sockets (flat and sloped), inlet flanges, frequency controllers, potentiometers, constant pressure control system
Performance: Volumetric flow m³/h, Pressure increase Pa, Efficiency static max. 45.4%, Efficiency total max. 46.2%
Dimensions: 653x653x551 mm
Weight: 44.6 kg
Compliance: CE marking, EMC Directive 2004/108/EC, Machinery Directive 2006/42/EC, Ecodesign Directive 2009/125/EC
Micro Carrier Impeller Assembly for 15L and 36L Vessels
Year: 2026
Manufacturer: Bellco Glass, Inc.
Product Type: Laboratory Equipment and Glassware
Material: Type 1 Class A borosilicate glass, PTFE, Silicone
Compatibility: Bellco Micro Carrier Spin Flasks
SKU: 1965-31500
Components: Paddle, Plug, Magnet Holder, Magnet Holder Extension, Magnet
Support Services: Technical Support, Customer Service, Application Support, Hardware Support
Intended Use: Laboratory mixing and stirring in biotechnological applications
Quality Assurance: In-house QC policies and procedures
Centrifugal Roof Fan DVNI 280 D2 30 with Backward Curved Impeller and Vertical Discharge
Year: 2026
Manufacturer: ruck Ventilatoren GmbH
Item number: 145036
Type: DVNI 280 D2 30
Material: Weather-resistant aluminium AlMg3 with 40mm mineral wool insulation
Motor: IEC three-phase, external to airstream, ball bearings with lifetime lubrication
Protection: IP55 motor, grille-protected air outlet
Accessories: Roof sockets (flat and sloped), inlet flanges, frequency controllers, potentiometers, constant pressure control system
Performance: Volumetric flow m³/h, Pressure increase Pa, Efficiency static max. 45.4%, Efficiency total max. 46.2%
Dimensions: 653x653x551 mm
Weight: 44.6 kg
Compliance: CE marking, EMC Directive 2004/108/EC, Machinery Directive 2006/42/EC, Ecodesign Directive 2009/125/EC
Supporting Information for N-Bordered Rylene Arches via Programmable Curved π-Extension
Year: 2026
Region / City: Not specified
Topic: Molecular Design, Synthesis, and Characterization of N-Bordered Rylene Compounds
Document Type: Scientific Research Paper
Organization / Institution: Not specified
Author: Not specified
Target Audience: Chemists, Researchers in Molecular Design and Synthesis
Effective Period: Not specified
Approval Date: Not specified
Modification Date: Not specified
Centrifugal Roof Fan DVNI 280 D2 30 with Backward Curved Impeller and Vertical Discharge
Year: 2026
Manufacturer: ruck Ventilatoren GmbH
Item number: 145036
Type: DVNI 280 D2 30
Material: Weather-resistant aluminium AlMg3 with 40mm mineral wool insulation
Motor: IEC three-phase, external to airstream, ball bearings with lifetime lubrication
Protection: IP55 motor, grille-protected air outlet
Accessories: Roof sockets (flat and sloped), inlet flanges, frequency controllers, potentiometers, constant pressure control system
Performance: Volumetric flow m³/h, Pressure increase Pa, Efficiency static max. 45.4%, Efficiency total max. 46.2%
Dimensions: 653x653x551 mm
Weight: 44.6 kg
Compliance: CE marking, EMC Directive 2004/108/EC, Machinery Directive 2006/42/EC, Ecodesign Directive 2009/125/EC
Experimental Investigation of the Cyclic Response of Double Curved Surface Sliders Subjected to Radial and Bidirectional Sliding Motions
Year: 2018
Region / City: Pavia and Milano, Italy
Subject: Seismic isolation and frictional response of Curved Surface Sliders
Document Type: Research article
Institution: University of Pavia, Politecnico di Milano, EUCENTRE
Authors: Marco Furinghetti, Alberto Pavese, Virginio Quaglini, Paolo Dubini
Target Audience: Researchers and engineers in structural and seismic engineering
Funding: Italian Civil Protection, Executive Project 2014–2016, National Research Project DPC – ReLUIS 2014–2018
Keywords: Bidirectional motion, Friction coefficient, cyclic effect, Concave Surface Slider, Cloverleaf orbit
Tested Device: Double Curved Surface Slider (DCSS)
Methodology: Full-scale prototype experimental campaign with unidirectional and bidirectional tests
Contextual Description: Peer-reviewed experimental study detailing the cyclic frictional behaviour of Double Curved Surface Sliders under various load and motion conditions, providing quantitative evaluation of friction decay as a function of dissipated energy.
Topics: DVNI Impeller Curved