TopWorx™ DX-Series Controllers are certified for use in every world area.

D-Series discrete valve controllers can survive in virtually any plant condition. Its corrosion resistance and heavy-duty construction enables superior performance in the most demanding applications. These controllers carry IECEx, ATEX, and UL certifications in a single model, making it easier for global customers to standardize operations across their facilities. D-Series controllers also carries NEPSI, KOSHA, InMetro, PESO, and EAC and EAC certifications.

Engineered with our GO Switch sensing technology, our D-Series line delivers best-in-class capabilities. TopWorx GO Switches are hermetically sealed to outperform all other position sensors in hot, cold, wet, dirty, abusive, corrosive, and explosive conditions. Its unique cam design allows quick and accurate setting of the GO Switch positions reducing deadband and hysteresis to a minimum.