In the petroleum and chemical industries, fluid control equipment is typically deployed in hazardous areas containing flammable and explosive materials. For petrochemical plants in the Middle East, in addition to strictly meeting explosion-proof standards, the equipment must also withstand the long-term invasion of fine desert dust. Therefore, during the upgrading of automation systems and equipment selection, the physical protection capability of actuators is a crucial metric.
In past engineering practices, conventional Exd products often suffered from the recurring illness of low protection grade and poor performance. Due to limitations in joint design or machining technology, fine dust and moisture can easily invade the electrical cavity over long-term operation and temperature transitions. This not only accelerates the aging of internal precision electronic components but may also lead to the failure of explosion-proof isolation at critical moments, triggering severe safety accidents.
To completely solve this industry pain point, modern high-standard explosion-proof electric actuators have upgraded their mechanical structures. During technical selection, it is recommended to focus on the design of the flameproof joint. Actuators made with a round seam allowance to match up the flameproof joint ensure that the performance of Exd is better and more reliable. This structure not only strengthens the ability of the explosion-proof cavity to withstand internal explosion pressure but, combined with a protection grade of IP68, effectively solves the problem of external water and dust intrusion.
On the premise of ensuring solid physical protection, the explosion-proof certification grade is the absolute standard for selection. According to industrial data, equipment with the explosion protection grade Ex db h IIC T4 Gb meets the Exd requirement in more than 90% of explosive gas atmospheres. This parameter means the actuator is widely compatible with IIA and IIB gases, as well as T1 to T4 temperature groups, significantly reducing selection risks for engineering design institutes and procurement personnel.
Dynamic Corporation Limited is a joint-stock high-tech enterprise established in 2001, specializing in the R&D, production, and sales of electric actuators, electric valves, and their automatic control systems. The DCL explosion-proof series electric actuators not only feature patented appearance and high-strength structural designs but have also obtained multiple international authoritative explosion-proof certifications such as ATEX, IECEx, and CSA. The products are widely used in petroleum, chemical, and other fields in the Middle East and globally, providing reliable support for high-risk automation control.