Parker F600S In-Line Flow Control Valve, 3/8" FPTParker’s F Series in-line flow control valves have either fine or standard metering needles for flow control and a fully guided poppet for free flow in the reverse direction. Our superior, fully guided poppet design eliminates wobble and erratic travel that can commonly occur with less durable ball check type construction. The standard soft seat poppet on these check valves provide near-zero leakage and come standard in sizes up to 1/2”. Options include oil and air metering valves for hydraulic and pneumatic applications.MarketsFactory AutomationMachine ToolsMarineMaterial HandlingMiningMiscellaneous IndustrialMiscellaneous ManufacturingMoldingOil &GasPower GenerationVehicle Assembly FacilitiesFeatures/BenefitsPort options include ISO 6149, NPT, BSPP, BSPT and SAEMaterial offerings are brass, steel and stainless steelTamperproof option availableThe exclusive “Colorflow” color-band provide an accurate visual indication of settingSet screw locks the valve on the desired settingApplicationsSuitable for general hydraulic applications