Due to their high resistance to inter-crystalline corrosion and to stress corrosion cracking, Duplex steels are used for process instrumentation in offshore oil extraction applications and chemical processes & manufacture.
In pressure measuring instruments Duplex is used as a material for diaphragm seals, which are employed for separating the aggressive process media from the actual sensor element.
A special bonding method for seal diaphragms, which has been developed by WIKA, enables the use of the austenitic-ferritic steel Duplex 2205 (1.4462) as diaphragm material in diaphragm seals. Therefore pressures ranging from only a few millibars, up to several hundred bars (including under acid gas conditions according to NACE MR 0175) can be successfully measured without any problems.
With this innovative advancement in the field of special materials for pressure measurement WIKA has demonstrated that even extremely difficult process instrumentation tasks can be solved.
WIKA also provide flanged or screw fitting diaphragm seals in stainless steel, Hastelloy, Monel, PTFE etc. and a fitting, filling & calibration service.
Code word: Diaphragm Seal, Duplex
For further information about the Duplex Diaphragm Seal visit WIKA Australia at http://www.wika.com.au OR Use the IndustrySearch e-mail feature below and one of the WIKA Australia team will respond to your enquiry directly.
WIKA Australia | Pressure, Temp, Level, Flow & Force measurement
Over the past 60 years WIKA Alexander Wiegand SE & Co. KG has built a reputation for innovation and quality in the manufacture and service of pressure and temperature measuring instruments. On the basis of steadily growing efficiency, innovative technologies are applied when developing new products and system solutions. The reliability of the products and the readiness to face all challenges of the market have been the key factors for WIKA to achieve a leading position in the global market.
Within the WIKA Group more than 7,000 employees are dedicated to maintaining and improving technology in pressure and temperature measurement. Over 500 experienced employees of the sales department consult the customers and users competently on a partnership basis.
More than 300 engineers and technicians are searching continually on behalf of WIKA to provide innovative product solutions, improved materials and profitable production methods.
In close co-operation with renowned universities, institutes and industrial companies, solutions for specific applications are developed and designed.
In Australia we are committed to providing exceptionally accurate and reliable pressure, temperature and now liquid level measurement solutions. Our commitment is demonstrated by our significant global and local investment in technology, manufacturing and R&D. WIKA’s comprehensive range of quality mechanical and electronic instrumentation includes pressure gauges, switches, transmitters and transducers, chemical seals, thermometers, thermocouples, RTD’s, float switches, bypass level indicators and accessories. Our products are support by onsite service and calibration, after sales support and an instrument workshop based in Sydney and Echuca. The workshop specialises in producing quality, customised products quickly. WIKA is ISO certified and NATA accredited.