The N776 G1.1/2” series of valves and solenoid operated poppet valves is the result of the technical evolution of the 776 series.
A rolling diaphragm construction has replaced the previously used piston design ensure lower frictions and longer life. Connection 3 is isolated via a dedicated seal which allow to have the n.O. version as well as the self feed for vacuum which was not available on the 776 series.
The pilot valves are the M3r (CnOMO stile) with bistable manual override.