Vakuum für Labore - Lokale Vakuumnetzwerke VACUU·LAN - 16 Pages

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Vakuum für Labore - Lokale Vakuumnetzwerke VACUU·LAN
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Catalogue excerpts

Vacuum for laboratories VACUU·LAN® Local vacuum networks Vacuum for laboratories in chemistry and life sciences Information for laboratory planners, architects, casework manufacturers and scientist

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VACUUBRAND For more than 50 years, VACUUBRAND has built a reputation for innovations in chemical-resistant vacuum pumps for laboratory facilities. With the VACUU·LAN® system, VACUUBRAND introduced a modular approach to vacuum supply for new laboratory facilities, as well as for lab upgrades or renovations. VACUUBRAND company premises in Wertheim am Main Contents The challenge when planning vacuum in the laboratory What is laboratory vacuum? Well-known systems in vacuum supply in the laboratory Structure of a VACUU·LAN® local vacuum network Investment and operating costs Planning aid for the VACUU·LAN®...

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laboratory vacuum What is laboratory vacuum? Vacuum as used in the laboratory is simply pressure below atmospheric pressure. The essential qualities of the vacuum that determine its usefulness in any particular laboratory application are the depth of vacuum – how much below atmospheric pressure – and the pumping speed, that is, how quickly can air, vapors or gases be removed from the vessel being evacuated. Why vacuum? Many scientists use vacuum every day. But how do they use it? Vacuum is used for many standard applications in the preparation and processing of samples. In most cases, the vacuum...

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laboratory vacuum The following graphic illustrates the various vacuum ranges common in the laboratory. The distinguishing features are intended to help you match the appropriate vacuum technology to the demands of the applications. High vacuum systems with backing pumps Extremely high vacuum Ultrahigh vacuum Rotary vane pump technology High vacuum Fine vacuum Diaphragm pump technology Rough vacuum Pressure ranges and vacuum technologies Rough vacuum (atm. - 1 mbar) In chemistry and life sciences, this describes the range between 1018 mbar atmospheric pressure and 1 mbar. At 1 mbar, 99.9% of the...

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Well-known systems Well-known systems in vacuum supply in the laboratory As in nearly every technical area, there are a wide variety of potential solutions for achieving an objective. This is also true in the laboratory and in research and production facilities in which vacuum technology represents an essential technology for a number of applications. For reasons of clarity, we are focusing below on the solutions with stand-alone systems, central vacuum and local vacuum networks. Prior to making investment decisions for or against a vacuum system or technology, the individual requirements should...

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Well-known systems Stand-alone solution As the name suggests, each application has its own vacuum pump or system. Each application receives a pump customized with regard to performance data and control options for the application. Organizationally, however, this means a broad range of pumps to be selected and the occupancy of far more work surface in the laboratory. The costs of the initial investment and maintenance are significantly higher here than central and decentralized vacuum supply systems. In the fine, high and ultrahigh vacuum range, stand-alone solutions are the only option; the physics...

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Well-known systems All-or-nothing operation with high energy and maintenance costs Availability must be ensured through a redundant pump; otherwise, when the central pump is down for maintenance, nobody can work. Both pumps run on an alternating basis, generally 24 hours a day, 7 days a week, even if the building is unoccupied or if there is no need for vacuum. This results in unnecessarily high maintenance and energy costs. Environment and safety Central vacuum systems are convenient for laboratory staff since building services is responsible for system maintenance and the investment is generally...

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WELL-KNOWN SYSTEMS ■ Depth of vacuum & control In contrast to central vacuum system supply, which rarely provides vacuum deeper than 200 mbar, VACUU-LAN® networks can supply vacuum as deep as 2 mbar, or virtually the entire rough vacuum range. This means that evaporative applications that would otherwise require a dedicated pump - even in cases in which central vacuum supply has been installed - will now be able to operate from the network ports. For programmable vacuum, only a controller at the vacuum port is needed, and not a dedicated pump. ■ Prevention of reciprocal interference Cross-contamination...

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Composition of a VACUU·LAN® local vacuum network The local vacuum network VACUU·LAN® consists of three components: the network pumping unit, the vacuum ports and the piping. Network pumping unit The local vacuum network consists of a vacuum pumping unit with chemical-resistant, dry-compressing diaphragm pump with an inlet separator to protect the pump and a pressure-side emission condenser. A network controller switches the vacuum pump on and off as needed and adjusts the rpm of the pump to the amount of gas and vapor present. The condenser is an insulated glass cooler which is connected to a...

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Manual control exhaust hood module Shutoff / control module Manual control module Electromagnet module Vacuum line Network pumping unit PC 3004 VARIO Schematic representation of a VACUU·LAN® installation Network pumping unit PC 3012 NT VARI

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Investment and operating costs Investment and operating costs To determine total cost of ownership (TCO), all costs incurred for vacuum supply in the laboratory are added up. The following graphic contrasts the total cost of ownership of a VACUU·LAN® local vacuum network with that of a central vacuum supply. The acquisition, installation, energy, service and repair costs are taken into account in this case, as an example. In addition, the costs for a redundant system pump – particularly in the case of a central vacuum system – also need to be estimated. The greatest savings in the case of the...

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Planning aid for the VACUU·LAN® local vacuum network The VACUU·LAN® local vacuum network has been developed exclusively for applications in the rough vacuum range. Stand-alone solutions in the fine vacuum range integrated into the furniture should be planned separately. 1. Network pumping unit: Selection of pump, depending on use Final vacuum Suction capacity Speed-regulated pump Solvent recovery 2. Integration in the laboratory furniture or open installation on the wall: Selection of connecting elements Connection element A1 - exposed vacuum line surface mounted on the wall Connection element...

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