Refining and chemical facilities operate in environments with high temperatures, high pressure, flammable/explosive atmospheres, and corrosive media. Hengchun's explosion-proof (ATEX, CCC-Ex) electric and pneumatic actuators, with superior sealing and intrinsic safety design, are widely used for critical isolation and regulation on reactors, columns, and pipelines. Supporting fieldbus protocols like FF and Profibus, they integrate seamlessly into DCS systems for precise, safe, and automated process control.