Rotork PAX1 valve actuators with AC power

The wider Rotork PAX range of linear valve actuators is made up of a variety of linear actuators and motorised regulators. PAX1 units are flexible, low-voltage actuators that are suitable for use in remote explosion-hazard locations. They offer a thrust output of up to 2890 N (650 lbf), enabling control of most regulators, small valves and pumps. They are capable of controlling pressure ranges of 0–0.5 psig to 0–3000 psig.

Common applications include pump stroke control, valve control, test equipment and the automation of mechanical spring-loaded pressure regulators. Hazardous area rated to FM, CSA and ATEX, they also have high levels of ingress protection; NEMA 4X, Type 6P, IP66 and IP68 (7 m for 72 hours), increasing the areas in which they can be used. They have a wide ambient temperature range of -40 to +80°C.

The addition of an AC power variant allows for longer cable runs without degradation of the power supply. This allows PAX series units to be installed within existing installations where DC power does not exist or is too expensive or difficult to run.

The PAX1 is suitable for midstream and downstream natural gas systems demanding precision and reliability, such as natural gas distribution automation. The AC PAX1 is especially well suited for water and power industrial applications. In the water industry, the integration of an AC PAX1 unit allows for optimisation and control.