The bidirectional valves, with direct action VM2 normally closed 2 ways 2 positions, allow manual intervention, the opening is obtained by manually pushing the rear button, removing the hand automatically the valve closes.
The VM2 valves allow for manual emergency intervention, they are normally closed bidirectional valves
They are available in SAE8/2 cavities, the seal, in both directions, is guaranteed by a conical shutter in hardened and ground steel, the other details are made of high-strength steel and externally protected from oxidation with a zinc plated, the button is made in aluminum.
