Method for technical condition testing of rotary drivable valves

摘要

A method for the technical condition test of rotary drivable valves with a rotary drive, wherein- the valve has a transmission element and a control element, - for the opening and closing of the valve, a torque is introduced into the transmission element, wherein a force acting on the transmission element torque is measured directly, - After first actuation of the valve acting on the transmission element, remaining torque remains in a rest position of the valve, and- the remaining torque in the rest position of the valve is measured without drive, with no auxiliary power is expended for the operation of the rotary drive, - a value the measured, remaining torque is compared with a reference value, and this value is not changed over time and is constant and thus indicates a functioning valve or leads to an overrun tolerance in an alarm.