Parker hydraulic directional control valve. Spool Action: Spring Return, Closed Center. Mullett Industrial Sales contact info. Get Supersized Images & Free Image Hosting. Attention Sellers - Get Templates Image Hosting, Scheduling at Auctiva.The item "Parker VDP12DD10 Hydraulic Directional Control Valve 2 Spool Spring Return" is in sale since Wednesday, March 18, 2020. This item is in the category "Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Valves & Manifolds\Directional Control Valves\Spool Valves". The seller is "mullettindustrialsales" and is located in Clare, Michigan. This item can be shipped worldwide.