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The 620 with pneumatic membrane actuator and the 675 manual valve areavailable with new connections and valve body materials. Bodies are now available with flanges to BS 10 Table E and flanges to ANSI class 125/150 RF, both with length EN 558, series 7, ISO 5752 basic series 7.These two connections are now available in valve body materials EN-GJS-500-7 (GGG 50) with PFA and PP lining in nominal sizes DN 25–150. These body versions offer high resistance to corrosive acids and alkalisand can be used at operating pressures of up to 10 bar. They are usually combined with PTFE diaphragms. The valve body materials are mainlyused in the chemical industry, mining, and the extraction of iron, non -ferrous and precious metals. With the introduction of these body versions for the two valve types more than 170 different valve body versions to DIN, EN, BS and ANSI standards can be supplied.
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