Shavo's Uni-directional Flow Regulator unit for process control is specifically designed as high performance product for instrument air use in severe atmosphere. A typical application is the speed control of an actuator. CE, ATEX, EAC (CUTR-10) euivalent to OST R K approved. Suitable for the applications include marine environment, oil and gas productions, chemicals and food processing, medical analysis, corrosive atmosphere etc. External and internal metallic parts are NACE MR 0175 approved. (National Association of Corrosion Engineers MR-0175 defines reuirements for sulphide stress cracking resistant materials used in oilwells and corrosive environments).