Youli is a manufacturer of monoblock and sectional valves based in Taiwan. Youli-America valves are rated up to 4600 PSI and flows to 63 GPM. Monoblocks are available with up to seven spools in the MB-3, or six spools in all other monoblocks. Sectionals can use up to 12 spools in an assembly. All Youli-America spool valves are power beyond or closed center capable and can be manual, pneumatic, hydraulic or electrically operated. Pressure compensated proportional valves available.