Midland-ACS Midland - ACS, based in the UK, has over 50 years experience as a supplier of 316 stainless steel valves and actuator control systems to the oil, gas and petrochemical industries, as either individual valves or in customer-designed systems. With direct sales Offices in the UK, Canada and the USA Midland-ACS provides 316 stainless steel valves and actuator control systems to function in the most arduous of conditions and extremities of temperatures. Most 316 stainless steel valves can be supplied to NACE approvals, while actuator control systems can be supplied to customers own requirements and most increased electrical safety approvals met. Midland-ACS is a division of International Motion Control (IMC).