TopWorx

TopWorx is the valve controls and limit switch brand of Emerson, based in Louisville, Kentucky, USA. Its products mount on valve actuators to show whether a valve is open or closed, send switch or analog signals back to the control system and, in some models, operate the actuator pilot valve. Seven Star LLC, an independent supplier in Muscat, lists products from the manufacturer’s manuals and datasheets and quotes against the exact model code.

TopWorx product groups

The documents on this site cover GO Switch leverless limit switches, the D-Series, TX-Series, TV-Series and K-Series discrete valve controllers, the DVR valve position monitor and the PD Series smart valve positioner. Options in these documents include GO Switch, mechanical and inductive sensors, 4-20 mA and HART transmitters, FOUNDATION Fieldbus, AS-i, DeviceNet and PROFIBUS communication, integrated pilots and explosion-protected enclosures.

Ordering TopWorx products: what we need

Send the full model code from the nameplate or the datasheet nomenclature, the actuator make, mounting pattern and size, the supply voltage and signal type, the hazardous-area certification and the quantity. Many options cannot be combined, so we confirm the code against the manufacturer’s documentation before quoting.