Working principles

The ThinkTop V20 is an automated valve indication unit that

does not require the use of any solenoid valve. It transmits the

status and condition of the valve position to any programmable

logic controller (PLC) system using electrical feedback signals,

such as digital, AS-Interface or IO-Link. Light-emitting diodes

(LEDs) on the unit provide a 360° visual indication of the valve

status, visible from any direction, displaying the current main valve

position and any local faults.

The sensor system accurately detects valve stem movement and

the valve position at any given moment, using microchip sensors

with an accuracy of ±1mm. Sensor chips on the sensor board

calculate the angle between the axial magnetic field produced by

a sensor target mounted on the valve stem to signal the current

valve position. The ThinkTop V20 is compatible with all Alfa Laval

hygienic valves, eliminating the need to readjust the sensors and

thereby boosting productivity.