dutch valve-control company netherlocks has developed nether-flex, a flexible shaft system to facilitate the operation of valves that are inconveniently situated. the nether-flex brings handwheels into an ergonomic position without any modifications to pipework needing to be carried out. the product also does away with the need for scaffolding or a chain wheel. although stringently designed, process plants are often subject to revision after start-up as loopholes in operability are identified. a list of the most common oversights would place difficult-to-reach valve operators in the top three. netherlocks' two-station answer to this problem consists of an operator unit, situated in a safe and convenient position; a second unit, mounted on the original valve; and a flexible connection running between the two stations. a counter with adjustable set points is integrated into the operator station to indicate whether the valve is open or closed. two valves situated in close proximity to each other can also be connected and operated with the nether-flex. the product is suitable for use in all extreme environments and has an operating temperature range of -30 to 80c.