Smith Flow Control Ltd has introduced easi-drive, a portable valve operating system where valve size, pressure rating or work environmental conditions would normally demand a permanent dedicated actuator or would require a work crew. Designed to operate in/with minimum facilities, easi-drive is available in three operational modes: pneumatic, hydraulic and electric. In any production or manufacturing facility, easi-drive can be run on adjacent plant air or from available single-phase electrical supply. Easi-drive is fully portable and can be supplied to manage any single valve or bank of valves. The system consists of three elements: drive gun, valve coupler and power pack. All torque ranges can be catered for with variable torque adjustment capability as standard.