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This series of solenoid valves are of normally closed type, suitable for civil and industrial applications, supplied with alternate current.
These devices are provided with a special rectifier circuit which supplies the valve coil with a high inrush power at starting (70W in fast opening version and 138W in slow opening version for about 120 seconds); then it reduces the power rating preventing the valve coil from overheating and keeping the gas valve in operating condition. This special circuit has enabled to achieved high operating pressure values using a small size valve coil.
A wire-net filter on the inlet avoids the entrance of dirt of > 1mm.
There is the possibility to have a fast opening or a slow opening valve (obtained by special hydraulic shock-absorber), with flow adjustment and fast opening initial flow adjustment. All versions can be connected with suitable fixing brackets, provided with by-pass solenoid valves and pressure plugs upstream and downstream.
Gas valves of this series are in compliance with European standard EN161 and have the EC-type certificate (CE PIN 0063AQ0626) in accordance with the Gas Appliance Directive 90/396/EEC and the following amendment 93/68/EEC. | 
