PRODUCT CATALOGUE. Ventilating and exhausting systems. for:

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1 Ventilating and exhausting systems for: Coal mining Potassium mining Ore mining Tunnel construction Metro tunnels Road building Underground irrigation and cavern systems PRODUCT CATALOGUE

2 KORFMANN Lufttechnik CONTENTS INTRODUCTION p. 3 9 About KORFMANN Lufttechnik p. 3 Contact persons p. 4 Ventilation systems p. 5 Designations / designs p. 6 Operating principle p. 7 Ranges of action of axial flow fans p. 8 Product overview p. 9 AXIAL FLOW FANS p Type series AL p Type series dal p Characteristic curves of series AL and dal p Type series ESN p Type series desn p Characteristic curves of series ESN and desn p Type series ES p Characteristic curves of series ES p Type series EST p. 38 Type series GAL p Type series dgal p Characteristic curves of series dgal p Type series SL p. 50 Type series DV p. 51 Characteristic curves of series DV p. 52 Type series KGL p ACCESSORIES p Measures for sound insulation p. 55 Silencers p Diverse accessories p Accessories for air ducts p FAN CONTROLLERS p Contactor combinations p. 71 Frequency converters p KORFMANN ENGINEERING OFFICE p Services p. 75 References p. 76 General terms of contract p Publisher s details p

3 ABOUT KORFMANN LUFTTECHNIK On 1st August 2001, KORFMANN LUFTTECHNIK GMBH took over the Fan Construction division of Maschinenfabrik Korfmann GmbH, including the entire knowhow, hardware and the brand names and designations which are known throughout the world. Our highly qualified expert team of engineers will not only continue the longstanding tradition of Korfmann s quality and performance in the field of ventilation for mining and tunnel construction, cavern systems, rock cutting and many other sections of industry, but also increase its performance to the advantage of your company in combination with the know-how and product range of the shareholders and the partner companies of KORFMANN Lufttechnik GmbH; this will without doubt lead to an even stronger position in the international market. You can therefore be sure that you will have an expert and flexible partner at your service. We look forward to proving our performance capability and ability to supply in your future projects. KORFMANN LUFTTECHNIK GMBH Engineering office and supplier of leading technology for commercial application in mining and tunnel construction. -3-

4 CONTACT PERSONS KORFMANN LUFTTECHNIK GMBH Wullener Feld 67, D Witten P.O. Box 1749; D Witten Germany Tel.: +49 (0) / Fax: +49 (0) / postmaster@korfmann.com Horst Enter Engineering Graduate General Manager General Project Manager Tel.: +49 (0) / Hanno Flick Engineering Graduate General Sales Manager Tel.: +49 (0) / Jürgen Fritsch Authorised Signatory Administration / EDP Tel.: +49 (0) / Frank Grun Engineering Graduate Engineering / Processing General Project Manager Tel.: +49 (0) / Michael Brenneke Technician Technology / CAD Tel.: +49 (0) / Jens Kegenhoff Engineering Graduate (FH) Project Planning / Sales Tel.: +49 (0) / Ulrich Glowka Technician / Industrial Foreman Technical Sales Tel.: +49 (0) / Christian Auster Technician Technician / CAD Tel.: +49 (0) / Frank van Lieshaut Technician Project Planning / Sales Tel.: +49 (0) / Alfred Mittelkötter Engineering Graduate Project Planning Tel.: +49 (0) /

5 VENTILATION SYSTEMS KORFMANN ventilation systems and equipment have a modular design. Our ventilation systems can be variably extended by the equipment in our accessories catalogue. As a result, we can offer the customer a specific ventilator station in line with the local conditions and situation at the construction site. The illustration shows an example of a ventilator station with a ventilator and a silencer on each side. An inlet nozzle with protective grating is assembled on the suction side. The blowout opening has been extended by a transition piece to enable the connection of plastic ducts or sheet metal pipes with larger diameters. Silencer (SDS module) Fan type AL including guide vane Silencer (SDS module) Transition piece for accommodating plastic air ducts or sheet metal pipes (ÜF / P or ÜF / F module) Inlet nozzle with protective grating (ED and SG modules) Motor terminal box prepared for the following control circuits: Direct Star / delta (Y ) Pole changing (PU) Frequency converter (FU) Mounting feet This example shows the simple modular arrangement of the individual parts. This system has commercial advantages in practical operation: Flexible use of the individual parts Modules can be exchanged individually Easy transportation High possibility of reuse Easy installation Good overall view of parts -5-

6 DESIGNATIONS / DESIGNS Type: The characteristic features of the ventilator are denoted by the contractions of the designations. The following regulations apply in this respect: EXAMPLE Type: AL Type Name: AL Axial-flow fan not flame proof or explosion-proof Diameter: mm internal diameter Power: kw electric motor EXAMPLE Type: Type Name: dgal 9 220/220 PU V EEX IM2C or EEX II2 GD dgal Contra-rotating axial flow fan in flameproof or explosion-proof design Diameter: mm internal diameter Power: 220 / x 22 kw electric motor Additions: PU Pole-changing motor Type of construction: The type of construction describes the assembly of the system, the materials and technical details. Types of control: There are different possibilities of control for all ventilators. All ventilators can also be equipped with other types of control. Direct Y ON / OFF switching without intermediate steps Star / delta start-up via higher Y voltage PU Pole-changing, 2 or 3 x; Several switching steps bring the device to full load FU Frequency converter: The drive can be infinitely regulated by means of this accessory unit. PU, FU and V are always stated as an addition in the fan designation in the application case. In fans with power outputs > 90 kw, the motors must have insulated bearings in frequency converter operation. In the case of ATEX IM2c and ATEX II2GD devices, the motor rating plate expressly refers to frequency converter operation. FU Prepared for frequency converter operation V Adjustable blades / impeller Designations: EEX IM2C, EEX II2 GD ATEX groups -6-

7 OPERATING PRINCIPLE The power range of a ventilator is illustrated by the specific characteristic curves in a graph. This power limit provides information about the volumetric flow depending on the generated pressure. The specified operating point should be located in a stable range of a characteristic curve with good flow mechanics, since the highest efficiency levels are obtained there. The reversal point of the characteristic curve which marks the flow separation is located above this range. If, as shown in the graph below, the theoretically calculated quantity and pressure are located in a field below the characteristic curve, the operating point of the fan can be read from a parabolic curve (resistance curve). The quantity generated in practice is now directly located at the point of intersection. Each of the main types of fans offered is shown in the following with an overview of the field of action for volumetric flow and pressure, in order to facilitate selection. Beforehand, the ranges of action with the power outputs of the various types of fans are shown in a graph, in order to enable pre-selection. Values above the curve fields shown can be obtained by means of different ventilator system constructions. Our engineers will be pleased to help you if you have any queries in this regard. Pressure P total = P st. + P dyn. [Pa] Stable range Flow separation Operating point Calculated operating point Resistance curve P dynamic Volume V [m 3 /s] -7-

8 RANGES OF ACTION OF AXIAL FLOW FANS 2 fans of the same construction type in series Pressure P total = P st. + P dyn. [Pa] AL / dal group GAL / dgal group ESN / desn / ES group KGL group Volume V [m 3 /s] -8-

9 PRODUCT OVERVIEW Axial flow fans AL dal ESN desn ES EST GAL dgal SL DV / HDV KGL Axial flow fan, not flameproof or explosion-proof Axial flow fan, flameproof / explosion-proof to ATEX I M2c and II2GD Electric fan, not flameproof or explosion-proof Electric fan, explosion-proof to ATEX II2 GD Electric fan, flameproof to ATEX IM2c Electric fan with turbine (combined unit), flameproof / explosion-proof to ATEX IM2c and II2GD Contra-rotating axial flow fan, not flameproof / explosion-proof Contra-rotating axial flow fan, flameproof / explosion-proof to ATEX IM2c and II2GD Compressed-air economizer fan Compressed-air axial flow fans KORFMANN Large fans Silencers SDS SDSk SDSI SDSIk PSD LUM SH KSD VSC Silencer for fan Silencer for fan, short Silencer for fan with core Silencer for fan with core, short Impact silencer Fan casing Noise-reducing cover Baffle-type silencer Fan in a sound-insulated container Accessories AS ED EDk MED MEDk ÜF / F ÜF / P ASP Connection pieces Inlet nozzles Inlet nozzles, conical Measuring inlet nozzles Measuring inlet nozzles, conical Transition pieces flange / flange Transition pieces flange / plastic airduct Shut-off / throttle valve / damper Types of control D SD PU FU Full-voltage starting Star-delta contactor combinations Pole-changing combinations Frequency converter Duct systems LVS WDL Duct storage device Differential pressure transducer, duct material -9-