Valve with manual override

The valve mod. IM-CM4V is controlled by a special 4 ways valve (mod.CM4V) that allows the total diaphragm opening or closing.
The manual control is placed upon the cover in hydraulic connection with the valve chamber. A small handle allows to manually select 3 differents options:

• CLOSE: it puts in connection the chamber with the coming pressure waters closing totally the valve
• OPEN: it puts in connection the chamber with the external atmosphere venting the water outside and opening totally the valve
• AUTO: this connection allows to equip the valve with hydraulic or electrohydraulic accessories for its automatic operation.