DAUREX Eccentric Screw Pumps Type EDS The DAUREX Quick Clean Pumps
The DAUREX eccentric screw pump belongs to the family of rotating positive displacement pumps. It combines the advantages of the low-pulse delivery of the centrifugal pumps with the careful delivery of the piston pump. DAUREX Quick Clean Pumps: Are specially suited for the exacting demands of the food, foodstuffs, luxury food, paint and varnish, pharmaceutical, cosmetics and chemical industries. Are manufactured from standard high quality special steel (1.4571). The stator materials we use are selected individually according to the medium to be pumped, and can be produced from a solid as well as from an elastomer. Materials used in the food industry are certified for foodstuffs (FDA). Pump all products gently and with a low pulsation flow, from thin fluids to highly viscous, pasty media, and media containing solids. Gaseous, effervescent and unclean media can also be pumped at very high or very low temperatures without a problem. In addition to the obvious advantages of the eccentric screw pump, they also have the advantage of easy disassembly and sterilisation. Standard equipment includes a stationary, pressure-relieved and bidirectional mechanical seal. EDS Series made to meet your particular need Drive motors All drive motors are directly flanged. We offer a selection of geared motors, three-phase motors, variable speed gear motors, and hydraulic motors. Materials All parts coming in contact with your product are made from 1.4301 (V2A), 1.4571 (V4A) stainless steel or steel. Stators are made of NBR elastomers (also of food stuff quality), Hypalon, neoprene, EPDM, Viton, from PE, PA, PTFE plastics (also fibreglass strengthened), using the metallic material grey cast iron, CuAL and stainless steel.
Type EDS 200.2 Flanged model Type EDS 20.2 Designed for 200 C Heatable suction housing Heatable stator Thermal shield Type EDS 80.1 Flanged model
DAUREX V (m /h) 3 40 30 20 15 10 9 8 7 6 5 4 3 E 800 We welcome individual customer requests Working method and delivery principle The most important elements are the screw-shaped spiral, single-flight eccentric steel screw (rotor) and the double-threaded housing insert (stator) which is manufactured out of an elastomer or a solid matter. The gap between the stator and the rotor is restricted by the sealing line. The rotational movement causes the media which is trapped in the gap to be continuously delivered from the suction to the delivery side. The sealing between the rotor and the stator remains intact even when the pump is at a standstill. This results in a high pumping capacity which is independent of the rotational speed. E 500 E 250 E 200 E 150 E 80 Optional accessories: Speed adjustment (variable speed gear or frequency converter) Bypass with overpressure valve Suction and/or stator casings that can be heated or cooled Running gear Carrying handle Inch, milk pipe, or flange connections Base plate of steel or special steel with or without mounting links Feeding screw Construction features: Easy to disassemble, good for cleaning Robust, double pin joints No flaps or valves Bi-directional, pressure-relieved, stationary cartridge mechanical seal Modular concept Parts that come into contact with product are made of special steel (1.4571) Self-priming Performance data: 0,1-20 m 3 /h Back pressure up to 24 bar Viscosity range up to 200000 mpa s Dry matter up to 35% Operating temperatures from -50 C to +250 C 2 E 40 1,5 1 100 200 400 600 800 1000 1400 n (min-1) E 20
Pump Sizes DAUREX EDS Series pumps are produced in a total of 10 sizes: 1. EDS Series 20-200.1l 2. EDS Series 150-250 3. EDS Series 500-800.1l The pump size indicates the pumping performance in 1/min at the lowest speed. Range of use Pressure stages DAUREX pumps are available in 4 pressure-stages as standard: 1-stage up to 6 bar, 2-stage up to 12 bar, 3-stage up to 18 bar, and 4-stage up to 24 bar. Suction capacity The suction capacity of the EDS pump depends greatly on the viscosity and the speed. Suction levels of 8.5 m water line are achieved. Additional pressure stages can be requested. Construction advantages Can be disassembled in a few steps, therefore easy to clean Robust double pin joints Sealing with either mechanical ring or gland Large range of accessories available DAUREX pumps carry oil, paint, varnish, salves, pastes, dispersions, glue, adhesive, suspensions, sludge, solutions, molasses, syrup, honey, sugar solutions, and many others. The quantity pumped is proportional to the speed. The speed, however, is not arbitrary, but is based on the stator material and the values, viscosity and abrasiveness of the material. As a general rule, the higher the viscosity and abrasiveness, the lower the speed must be. The quantity pumped is not affected much by a change in the pressure. An even delivery flow allows our pumps to be used as metering pumps.
By specialising in eccentric screw pumps from an early stage, the company DAUREX Pumpen GmbH with registered offices in Schermbeck is now one of the leading specialised companies which makes deliveries on a global scale. Quality management of the highest standard guarantees you excellent products and a smooth transaction, carried out on time. Product range Eccentric screw pumps are available in the following models: Quick Clean Pump (EDS) High Performance Pump (ED) Open Hopper Pump (EDT) CIP Pump (EDC) Metering Pump (ED) Well Pump (DSM) Barrel/Drum Pump (EB) In addition to creativity, experience and solidarity, our success is based on a high standard of technical competence. An ongoing staff training programme enables us to achieve a maximum level of precision in a class of its own. Replacement parts even for products produced by other manufacturers: Rotors Stators Coupling rods Drive shafts Small parts Special productions and drives are available for all units. Thanks to our fully stocked warehouse, we can offer immediate delivery. DAUREX Daurex Pumpen GmbH Im Heetwinkel 6 D-46514 Schermbeck fon: +49 (0) 28 53/95 06-0 fax: +49 (0) 28 53/95 06-66 e-mail: info@daurex.de web: www.daurex.de