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WIKA Alexander Wiegand SE & Co. KG
Catalog excerpts
Pressure Temperature Level Flow Calibration IWIKAll M Part of your business
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Alexander Wiegand, Chairman and CEO WIKA As a family-run business acting globally, with over 8,500 highly qualified employees, the WIKA group of companies is a worldwide leader in pressure and temperature measurement. The company also sets the standard in the measurement of level and flow, and in calibration technology. With manufacturing locations around the globe, WIKA ensures flexibility and the highest delivery performance. Every year, over 50 million quality products, both standard and customer-specific solutions, are delivered in batches of 1 to over 10,000 units. Founded in 1946,...
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Electrical output signals 10 Adaptation to the process with diaphragm seals 12 Calibration technology and services 46 WIKA - Your partner in the chemical and petrochemical industries The chemical and petrochemical industries make extremely high demands on all instruments used within the process. They are subject to strict international guidelines like the PED and ATEX. Electronic, mechatronic and mechanical measuring instruments for pressure, temperature and level are used for general applications as well as in potentially explosive areas, and must operate as satisfactorily in...
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Certificates and approvals Given the increasing demands in terms of quality and product safety of chemical products, certified measuring instruments for pressure, temperature and level contribute considerably to the safety of the production processes. Therefore WIKA offers a wide range of approvals and certificates. Pressure equipment directive 97/23/EC The European pressure equipment directive 97/23/EC has to be applied to almost all mechanical and electrical pressure measuring instruments, throughout the European Union. WIKA instruments are certified by TÜV SÜD Industrieservice GmbH,...
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Instrument requirements Stainless steels are the main standard material in chemical process technology. The worldwide commonly used materials 316L and 1.4404/1.4435 are generally employed. For high-pressure measurement, high-strength stainless steel is used, while for pressure measurements at elevated temperatures, temperature resistant stainless steel is needed. For chemical processes involving highly-aggressive media, - in combination with diaphragm seals/gauges with diaphragm or capsule for pressure measurement, or thermowells for temperature measurement - an extensive range of...
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Explosion protection is a section of technology, which deals with the protection from the occurrence of explosions and with their effects. It serves the avoidance of damage to persons or objects caused by technical products, plants and Zone classification The operator/employer is obligated, independent of the size of his business, to evaluate all areas of his business according to potentially explosive zones and state this in the explosion protection document. other equipment. Explosion protection comprises technical solutions, such as ignition protection types, and legal provisions, such...
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Explosion group Gases and vapours are divided into three explosion groups (The higher explosion group, e.g. IIC, in each case covers the (IIA, IIB and IIC) according to their individual inflammability. lower ones, e.g. IIA and IIB). So the degree of risk increases from explosion group IIA to IIC. Dust groups Fibres, flyings Non-carbon-containing dust Carbon-containing dust Metal dust Class III Class II, group G Class II, group F Class II, group E In order to make the project engineering of installations easier, six temperature classes (T1 to T6) for permissible surface temperatures were...
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Functional safety Using components of excellent quality is a prerequisite for preventing risks to persons, the environment and property. Reliable components in control and instrumentation technology (C&I) safeguard critical processes in the chemical and petrochemical industries. In this connection one is generally speaking about circuit breakers, safety circuits or safety functions. The required safety-relevant characteristics of the components used are currently specified through, for example, the IEC 61508 (functional safety - general) and IEC 61511 (functional safety in the process...
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Safety-related values IEC 61508 applies to all applications of electronic systems whose malfunction could have a massive influence on the safety of persons, the environment and equipment. The safety-related requirement is calculated in accordance with the probability of occurrence of a damaging event and its potential impact. The higher the expected extent of the damage and its probability of occurrence, the higher the classification from SIL 1 to SIL 4 is set. The following instruments are classified in accordance with IEC 61508/IEC 61511: ■ Pressure transmitter IS-20 ■ Process transmitter...
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Bus technology The general trend towards using digital bus systems instead of the conventional field instruments with an analogue output signal is being seen in the chemical industry as well. Advantages: ■ Higher accuracy ■ Reduced wiring requirements ■ Possibility of parameterisation ■ Extended diagnostics of field instruments ■ Improved process monitoring ■ Reliable digital signal transmission To plant managers this means a cost reduction and an increased availability of their plants. Standard output signals Based on the variety of output signals available our measuring instruments can be...
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Instrument requirements Pressure and temperature measuring instruments WIKA is certified as a manufacturer of pressure and temperature measuring instruments in accordance with the AD-2000/HP0 requirements, DIN EN ISO 3834-2 and DIN 2303. Apart from standard TIG hand-welding, we also employ orbital welding, partly mechanised and fully mechanised TIG welding, resistance welding and laser welding. For pressure-bearing welded seams, numerous welding procedure tests are available. Austenitic stainless steel as well as nickel-based alloys (e.g. Monel 400 / 2.4360 / UNS N04400) are used. As...
Open the catalog to page 11All WIKA Alexander Wiegand SE & Co. KG catalogs and technical brochures
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