Cylindrical bellows

flatstainless steeldisc

Bellows for special valves We design, size and manufacture bellows for special valves: for gas, vapour and liquids drains; both flanged and threaded; stainless steel series AISI 300 and special Alloy 400, 625 and c276; mono and/or multi plies for globe, ball and disc valves with a diameter from DN 7,5 to DN 3.000; able to resist up to a pressure of 700 bar and a temperature of 700°C; tests with mass spectrometer on 100% of items; load cycle testing and pressure resistance testing; possibility of customized products according to the customers’ requirements, also for low quantities.