Catalog HY15-3502/USFlow Control Valves ContentsParker Hannifin CorporationFC1Flow Control ValvesCatalog HY15-3502/USTechnical TipsParker Hannifin CorporationINTRODUCTIONThis technical tips section is designed to help familiarize you with the Parker line of Flow Control Valves. In this section we present common options available as well as a brief synopsis of the operation and applications of the various product offered in this section. The intent of this section is to help you in selecting the best products for your application.Adjustment Types: Parker offers four primary types of adjustments for most of the flow control products.Samples of these types are shown below. Please note all options may not be available for all valves. Consult the individual catalog pages for more details.Screw Adjustment - Valve can be adjusted with an allen wrench. Lock nut included to maintain desired setting after adjustment. This is the most common adjustment option available on most Parker products.Knob Adjustment - An aluminum knob is added to the standard screw adjustment. A lock knob is provided to help maintain the desired setting after adjustment. Parker offers knob conversion kits for most flow control valves. For kit numbers consult the individual valve pages.Fixed Style - In most cases, the Fixed Style product is a screwadjustable product with a steel collet threaded over the adjustment.These valves are preset at the factory. Should the valve need to adjusted, the star washer andaluminum plate can be removed from the top of the assembly exposing the adjustment.Tamper Resistant - The tamper resistant option is a screw adjustable valve with a steel cap installed to con-ceal the adjustment. The cap is designed so the internal edges clamp into the groove of the valve adapter. Once the cap is installed, it cannot be removed without damaging the cap and the valve.When a valve is ordered with the tamper resistant option, it will be preset at the factory, and the cap will be included in a separate plastic bag to allow for fine tuning at the customer site. Parker offers tamper re-sistant cap conversion kits for most flow control valves.For kit numbers consult the individual valve pages.Seals: The Winner’s Circle products feature astandard 4301 Polyurethane “D”-Ring. The “D”-Ring eliminates the need for backup rings.The majority of the products are available in Nitrile or Fluorocarbon Seals. You should match the seal compatibility to the temperature and fluid being used in your application.Fine Meter Options: Fine meter needles are offered on some needle valve series. When this option isspecified, the standard needle is replaced by a slotted needle. The slotted needle restricts substantially more flow giving you finer control in the small flow ranges.Obviously, the maximum flow capacity of the needle valve is decreased with the fine meter option.Coarse NeedleFine NeedleCOMMON OPTIONSAs you will see, Parker offers a variety of Flow Control products. As such, some of the options mentioned below may not be available on all valve models. Consult the model coding and dimensions of each valve for specifics.Here are some of the common options available.Catalog HY15-3502/USFlow Control Valves Technical TipsParker Hannifin CorporationFC2FC3Flow Control ValvesCatalog HY15-3502/USTechnical TipsParker Hannifin CorporationCatalog HY15-3502/USFlow Control Valves Technical TipsParker Hannifin CorporationFC4Needle Valve Series J02A2Catalog HY15-3502/USFC5Parker Hannifin Corporation Technical InformationCatalog HY15-3502/USNeedle Valve Series J02A2FC6Parker Hannifin Corporation Technical InformationNeedle Valve Series NVH081Catalog HY15-3502/USFC7Parker Hannifin Corporation Technical InformationHardened, precision ground parts for durability Compact size for reduced space requirements Fine adjustment needle option available for precise Polyurethane “D”-Ring eliminates backup rings and Valve meters flow in either direction, but (2 to 1) is the preferred direction for lowest leakage at shut offCatalog HY15-3502/USNeedle Valve Series NVH081FC8Parker Hannifin Corporation Technical InformationNeedle Valve Series NVH101Catalog HY15-3502/USFC9Parker Hannifin Corporation Technical InformationPerformance CurvesFlow vs. Inlet Pressure Hardened, precision ground parts for durability Compact size for reduced space requirements Fine adjustment needle option available for precise Polyurethane “D”-Ring eliminates backup rings and Valve meters flow in either direction, but (2 to 1) is the preferred direction for lowest leakage at shut offCatalog HY15-3502/USNeedle Valve Series NVH101FC10Parker Hannifin Corporation Hydraulic Cartridge SystemsTechnical InformationNeedle Valve Series J06A2Catalog HY15-3502/USFC11Parker Hannifin Corporation Hydraulic Cartridge SystemsTechnical InformationCatalog HY15-3502/USNeedle Valve Series J06A2FC12Parker Hannifin Corporation Hydraulic Cartridge SystemsTechnical InformationNeedle Valve Series J02B2Catalog HY15-3502/USFC13Parker Hannifin Corporation Hydraulic Cartridge SystemsTechnical InformationCatalog HY15-3502/USNeedle Valve Series J02B2FC14Parker Hannifin Corporation Hydraulic Cartridge SystemsTechnical InformationNeedle ValveSeries FV101 and FV102Catalog HY15-3502/USFC15Parker Hannifin Corporation Hydraulic Cartridge SystemsTechnical InformationFree FlowMetered FlowCatalog HY15-3502/USNeedle ValveSeries FV101 and FV102FC16Parker Hannifin Corporation Hydraulic Cartridge SystemsTechnical InformationP.C. Flow Control Valve Series J02E2Catalog HY15-3502/USFC17Parker Hannifin Corporation Hydraulic Cartridge SystemsTechnical InformationCatalog HY15-3502/USP.C. Flow Control Valve Series J02E2FC18Parker Hannifin Corporation Hydraulic Cartridge SystemsTechnical InformationFC19P.C. Flow Regulator Valve Series FR101Catalog HY15-3502/USParker Hannifin CorporationHydraulic Cartridge SystemsTechnical InformationAdjustable StyleSeries FR101Technical InformationAdjustable StyleSeries J04E2Technical InformationAdjustable StyleSeries J04C2Technical InformationSeries FA101Technical InformationSeries FC101Technical Information(2)Catalog HY15-3502/USP.C. Priority Flow Control Valve Series J02D3FC30Parker Hannifin Corporation Technical InformationFC31P.C. Priority Flow Regulator Valve Series FP101Catalog HY15-3502/USParker Hannifin Corporation Technical InformationFeaturesHardened, precision ground parts for durability Cartridge design(2)FC32Catalog HY15-3502/USP.C. Priority Flow Regulator ValveSeries FP101Parker Hannifin Corporation Technical InformationP.C. Priority Flow Control Valve Series J04D3Catalog HY15-3502/USFC33Parker Hannifin Corporation Technical Information(2)Catalog HY15-3502/USP.C. Priority Flow Control Valve Series J04D3FC34Parker Hannifin Corporation Technical InformationP.C. Priority Flow Control Valve Series J1A125Catalog HY15-3502/USFC35Parker Hannifin Corporation Technical Information(2)Catalog HY15-3502/USP.C. Priority Flow Control Valve Series J1A125FC36Parker Hannifin Corporation Technical InformationFC37Catalog HY15-3502/USParker Hannifin Corporation Restrictive Type Pressure Compensator Valve Series FCR101Technical Information(1)(3)FC38Catalog HY15-3502/USRestrictive Type Pressure Compensator ValveSeries FCR161Parker Hannifin Corporation Technical Information (3)FC39Catalog HY15-3502/USParker Hannifin Corporation Priority Type Pressure Compensator Valve Series FCP101Technical InformationFC40Parker Hannifin CorporationPriority Type Pressure Compensator Valve Series FCPH121Catalog HY15-3502/USFC41Parker Hannifin Corporation Technical InformationCatalog HY15-3502/USPriority Type Pressure Compensator Valve Series FCPH121FC42Parker Hannifin Corporation Technical InformationFlow Divider/Combiner Valve Series FDC101Catalog HY15-3502/USFC43Parker Hannifin Corporation Technical InformationDivider Outlets Combiner Inlets(3)Divider Inlet Combiner OutletCatalog HY15-3502/USFlow Divider/Combiner Valve Series FDC101FC44Parker Hannifin Corporation Technical InformationFlow Divider/Combiner Valve Series L04A3Catalog HY15-3502/USFC45Parker Hannifin Corporation Technical InformationDivider Outlets Combiner Inlets (3)Divider InletCatalog HY15-3502/USFlow Divider/Combiner Valve Series L04A3FC46Parker Hannifin Corporation Technical InformationFlow Divider/Combiner Valve Series L06A3Catalog HY15-3502/USFC47Parker Hannifin Corporation Technical InformationDivider Outlets Combiner Inlets (3)Divider InletCatalog HY15-3502/USFlow Divider/Combiner Valve Series L06A3FC48Parker Hannifin Corporation Technical InformationFlow Divider/Combiner Valve Series L1A300Catalog HY15-3502/USFC49Parker Hannifin Corporation Technical InformationDivider Outlets Combiner Inlets。