Position control and feedback

BOYE’s English catalogue lists positioning accuracy below 0.1% for local manual and Modbus control modes. This is a valve-position specification. Actual flow also depends on pressure, valve characteristics and the water circuit, while temperature control depends on the complete process and measurement arrangement.

Full-stroke travel time by size

At the maximum speed setting, the catalogue lists full-stroke travel below 0.5 seconds for DN25–DN32, below 1.5 seconds for DN40–DN50, below 2 seconds for DN65–DN100 and below 2.5 seconds for DN125–DN200. Confirm the selected valve and speed setting against the current technical documentation.

Control interfaces

The catalogue describes 4–20 mA signals, Modbus RS485, a local display and automatic calibration. Confirm signal scaling, available feedback and the installed controller configuration when integrating with the mill PLC.

Operation in a cooling circuit

Temperature feedback can be used by the control system to adjust the valve position. The process design must consider sensor location, water supply, valve sizing and the response of the whole line. Positioning precision alone does not guarantee a particular temperature range or eliminate every source of control variation.

Selection and maintenance

Provide the pipe size, water pressure, required flow range, process conditions and available installation space. The catalogue describes holding position on loss of power. The mill should assess the required safe state separately and confirm maintenance and commissioning requirements for the selected assembly.