This Wandfluh AMRN6/2-6.3 Proportional Throttle Flow control valves and feed unit is in unused condition and is guaranteed to be functional. Please note that this item is one of our older listings and we are planning to reshoot photos. Some of the photos included with original listing were located in the description and as a result could not be transferred. Please see screenshots of the description page from the original listing. We will be happy to provide additional information as well as new photos upon request. Please feel free to contact us with any questions. The Proportional Solenoid op Flow Control valves are designed to control the flow very accurately and they can also be used for dynamic applications to control Proportional Sol Op Pressure Relief and Proportional So Op Pressure Reducing functions with High accuracy 3-way flow control valve Flansch- und Sandwichbauart ? Q max = 22 l/min ? Q N max = 20 l/min ? p max = 250 bar = 250 bar max ? p = 20 l / min N max ? Q = 22 l / min max ? Q Flange-and sandwich construction