Discover Walvoil. Discover the world's largest offering of mobile hydraulic direction controls and much more. As a member of Interpump Group, Walvoil is a leading global manufacturer of hydraulic valves, pumps, motors and mechatronic systems. We serve a variety of applications in mobile lifting equipment, construction & earth moving, agricultural, forestry, refuse and other vocational vehicles. Our integrated designs of hydraulic and electronic products are purpose tailored for satisfaction. Bring your system challenges to our professional team and discover why our solutions are used by major OEMs worldwide.