Gate valve – Maintenance
Refurbishment instead of replacement
Especially stuck or very stiff valves can be repaired with the electronic actuator by using a heavy-duty gearbox. In consultation with the customer, the torques are increased in stages, taking the breaking torques specified by the valve manufacturer into consideration.
The valve is closed and opened until the torques are within the normal range again.
Stuck valves can be released again by changing the direction of rotation several times and increasing the torque.