Ball Valves are used on the hydraulic thumb to connect and disconnect the attachment on to the excavator. It could be either a 2 way or 3 way valve as per the customer requirements.
Ball valves are used for the extension of the hydraulic arm/cylinder in the cranes and lifts. Thus ensuring enough load carrying capacity without any pressure drop.
Special Aluminium Ball valve with pressure relief valve is used on the Road milling machines. Thus ensuring light weight and easy operation with a fail safe feature added witht help of pressure relief valve.