Progressive Power & Control sells Yuken Japanese hydraulic piston pumps, vane pumps, directional valves, hydraulic stack modules and hydraulic power units from Yuken.Proportional pumps with onboard electronics (electro-hydraulic pumps), standard power units, compact power units, piston pumps, vane pumps, flow control valves, variable displacement pumps, high pressure hydraulic pumps, directional control valves and other Yuken hydraulics.