Mechanical Technology November 2015

⎪ Local manufacturing and beneficiation ⎪

Improved valve design sets new quality benchmark AZ-Armaturen has further developed its plug valve range for improved safety, reliability, modularity, • A patented cardanic di- hedron coupling has been incorporated.

T he AZ-Armaturen Group has further developed its high quality plug valve range with the positive result of a very safe, reliable and modular sealing and mount- ing arrangement. AZ-Armaturen is a German-owned global manufacturer of plug valves, special valves and allied products. AZ-Armaturen South Africa is the only South African manufacturer of sleeved, self-lubricating plug valves and the leading supplier in sub-Saharan Africa. The AZ Group has fur- ther production plants in Germany, Brazil and China, which all manufacture the valves according to the same German design and highest international valve standards. The design of the new plug valve range sets the quality benchmark high for valves used in hazardous, dangerous and difficult applications where high reliability is needed. The modular design provides maximum flexibility, so that the basic valve can easily be modified according to customer require- ments. In more detail, the new ISO-standard design provides advantages such as: • The valves are free of cavities, to minimise maintenance requirements. • Shaft and cover sealing is improved. • Safety seals have been added to prevent fugitive emission of aggressive and toxic media. • The actuator-mounting flange complies with the ISO 5211 standard. • A modular approach has been adopted for maximised flex- ibility. • The plug is easily accessible for adjustment.

• The vacuum tightness is improved. • The range is compliant with various international valve standards, such as

better sealing and simpler mounting.

the fire-safe API 607 standard. After an extensive and success-

ful development, test and implementation phase at the German headquarters, AZ-Armaturen South Af- rica is now going to supply the new valve design to the sub-Saharan market from early 2016. The South African manufacturing plant is preparing and implementing the new production processes that are needed for the new design and is building up its stock of all the necessary raw materials and finished products in order to be able to deliver with short lead times The implementation phase has been systematically planned over a period of several months to make sure that the delivery times can be kept short. AZ-Armaturen is convinced that the new valve will provide higher reliability, advanced safety fea- tures, more flexibility and it will strengthen AZ’s position as leading manufacturer of high quality plug valves. q

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Mechanical Technology — November 2015

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