G&O Diaphragm valves do not incorporate any stuffing box and are leaktight on all liquids, slurries, granular materials, powders, pastes, gases, acids, etc…

Diaphragm (internal membrane) is supported during opening and closing, and is easily replaceable without any special tools. The wide range of available elastomer materials enable an appropriate selection for each application and is a guarantee of perfect resistance to corrosion and abrasion.

Sanitary type valves are recommended for ultimate sterility in pharmaceutical and biotechnology industries. Using perfectly contoured self-draining stainless steel bodies and PTFE faced diaphragms, resulting in valves totally free of bacteria traps.

BODY VALVE LINING MATERIALS: Soft rubber, Butyl Rubber, Hard rubber (ebonite), ECTFE/HALAR, PFA, ETFE, Galvanized (laid in an hot zinc bath)

MATERIAL DIAPHRAGM: Natural rubber, White natural rubber, Neoprene, EPDM, Viton, Butyl, Nitrile, Hypalon, Silicone, Neoprene/Silicon (mixed), PTFE faced