ATOS Solenoid directional valves type DHU ATOS Solenoid directional valves type DHO ATOS Solenoid directional valves type DHI ATOS Solenoid directional valves type DHE DHU and DHO are spool type, three or four way, two or three position direct operated solenoid valves designed to operate in oil hydraulic systems. They are operated by wet and pressure sealed solenoid atos dhe atos dhi atos dha atos dhi-0610 atos dhi-0713 atos dhi-0714 23 atos dhi-0631/2 atos dh-0831/2 atos dh-0143 atos dh-0113 atos dh 0231 atos dh-0151 atos dh-0913 atos dh20-a atos valve dhi atos dhi-0639/0 atos dhi 0631 2 atos dhi- 0713 p 23 atos dhi-0713-x24dc