Since the 1960’s, AVENTICS has been the leader in pneumatic directional control valves for bottom dump rail hopper cars, most often hauling coal or aggregate. The rugged, heavy-duty designs and years of proven reliability have kept them in demand. Valves with manual, air pilot or solenoid operation (single or double), with subplate or tapped body mounting are available. Several different versions of valves are available, depending on the application and customer desires, with maximum up to 15.75 Cv.The RCV1, RCV2, RCV3 and RCV5 valve versions are based on our Super Spool™ valve design. The RCV4 version is based on our TaskMaster® valve design.