Catalog excerpts
Pressure Temperature Level Flow Calibration technology IwikaII ^ Part of your business
Open the catalog to page 1Alexander Wiegand, Chairman and CEO, WIKA About us As a family-run business acting globally, with over 9,300 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...
Open the catalog to page 2Contents Global presence Safety in the event of failure Classified instrumentation Unclassified instrumentation Global safety requirements Calibration technology WIKA – Your partner in nuclear power generation In many systems within a nuclear power plant, both in the primary and also the secondary circuits, not only are pressure, temperature and level measuring instruments from WIKA used, but also their primary flow elements are too. Due to the extremely strict safety standards, the demands on measurement technology are very high. Electronic, mechatronic and mechanical measuring instruments...
Open the catalog to page 3All around the world – Close to the customer With manufacturing locations around the globe, we ensure the highest flexibility and delivery performance. Some WIKA manufacturing locations: Germany (HQ), Australia, Brazil, Canada, China, India, Italy, Korea, Malaysia, Poland, Russia, Singapore, Switzerland, South Africa and USA Proximity to our customers is essential for efficient solutions. Whether standard products or custom designs: Working with you we'll find the right concepts for your requirements. To meet this demand wherever it arises, we are a strong group of companies with a...
Open the catalog to page 4Safety in the event of failure Safety in the event of failure After the Fukushima reactor disaster, the safety procedures in nuclear plants have once again been questioned the world over, particularly whether their resistance to natural disasters is sufficient. As a result of this, the whole safety infrastructure of nuclear power plants and their design have been reevaluated. The analyses have, among other things, shown that the monitoring systems for cooling ponds for beyond-design events must be improved. Through the consideration of new failure scenarios, the safety standards and, with...
Open the catalog to page 5Tailor-made solutions and the highest demands on quality Measuring instruments for the monitoring of levels and temperatures in the processes of a nuclear power plant are used before, during and after a severe accident. These therefore deliver essential information on the actual status of the parameters in the containment – even if other sensors in the vicinity have failed. Continuous level measurement Reactor cooling systems Reactor containment vessels Safety cooling systems Operational radiation dose: ≤ 160 kGy Leak monitoring Operation in the event of failure ■■ Temperature in the event...
Open the catalog to page 6Safety in the event of failure Temperature probes Primary coolant pipes Operational radiation dose: ≤ 50 kGy Emergency cooling and residual heat removal systems Response time without thermowell: from ≤ 3.6 sec. Cooling pond cooling systems Operation in the event of failure ■■ Temperature in the event of failure: 156 °C Radiation dose in the event of failure: up to 400 kGy cumulative Trillo (Spain)
Open the catalog to page 7Classified instrumentation As a result of the reevaluation of the accident scenarios, modification measures on the components of the safety systems (e.g. the emergency power diesel generators) and also on systems in the secondary circuit in the power house could be required. Here the name of WIKA also stands for reliability and competence; in product manufacture as well as in the consultancy, planning and design of measuring requirements.
Open the catalog to page 8Classified instrumentation Emergency power diesel Temperature measuring instruments, temperature switches and thermowells Pressure measuring instruments and pressure switches
Open the catalog to page 9Steam boiler Feed water system Industrial water system Coolant system Level measuring instruments ■■ Bypass level indicators Reed sensors Magnetic switches Magnetic float switches Taishan I+II (China)
Open the catalog to page 10Classified instrumentation Cooling circuit Pressure measuring instruments Surface temperature probes
Open the catalog to page 11Diaphragm seal systems By using diaphragm seals, it is possible to adapt pressure gauges, , process transmitters, pressure switches or pressure sensors to even the most difficult of conditions in the nuclear power industry. A diaphragm made of the appropriate material separates the medium from the measuring instrument. Mounting may be made via a direct connection, a cooling element or a capillary. Pressure gauges The internal space between the diaphragm and the pressure measuring instrument is completely filled with a system fill fluid matched to the process. In order to be able to cope...
Open the catalog to page 12Classified instrumentation Temperature: Filter room Level: Condensate tank Pressure: Containment vessel Filtered containment pressure relief A core meltdown may cause damage to the reactor containment vessel due to overpressure. This overpressure is caused by the decay heat in the containment vessel and must be limited. To achieve this, “filtered containment pressure relief systems” are used. Specifically for these applications, different diaphragm seal systems are used.
Open the catalog to page 13Feed water circuit High-pressure steam circuit Medium-pressure steam circuit Condensate discharge Make-up water circuit Cooling water circuit Compressed-air circuit Unclassified instrumentation Our portfolio for primary flow elements includes orifice plates, meter runs, flow nozzles, Venturi tubes and averaging pitot tubes. With our extensive product range we are in a position to cover almost all applications within power plants. As a result of our many years of experience, we can develop customised solutions to meet your specific needs. For many customers, the accuracy of the measurement...
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