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    Precise Flow Control with Fine Adjustment of Corrosive and High Purity Fluids

    Features:
    • Produced in two styles: Globe pattern (straight 180°) and Angle pattern (90°).
    • Needle finish, SPI/SPE No. 1. Bubble tight, low torque shutoff long term performance.
    • All injection molded, rugged design and construction
    • 24 Pitch metering thread. 20% Finer metering control. Excellent Linearity of Flow.
    • Needle Stem is PTFE sealed for excellent chemical resistance & high purity.
    • Integrally designed panel mounting, no fasteners required, mounts to panel thicknesses from 1/16" to 1/2".
    • No elastomers (O-Rings), metals or lubricants, no corrosion, no contamination.
    End connections:
    1/4", 3/8", 1/2" Female NPT, Solvent Socket "Slip". Tube Connections Available Click Here. 
     
    Max Pressure Ratings:
    PVC: 180 PSI @ 72° Fahrenheit
    CPVC: 200 PSI @ 72° Fahrenheit
    Polypropylene: 150 PSI @ 72° Fahrenheit
    PVDF: 220 PSI @ 72° Fahrenheit
     
    Materials of Construction:
    Valve Body & Components: Injection molded in PVC, Glass & Mineral Reinforced Polypropylene, CPVC, & High Purity PVDF. FDA, USDA, and USP standards are either met and/or exceeded, please contact us for further validation. 
    Stem Seal: The stem seal is machined from 100% Virgin PTFE (Polytetrafluoroethylene).
     
    PLEASE CLICK ITEM # BELOW TO VIEW ADDITIONAL SPECIFICATIONS & DOWNLOADS

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    Overview
    The ultimate in on/off product cycle life, our "Life Series" needle valves comprise a Virgin PTFE tipped needle for exceptionally low torque, long life on/off operation. In applications where the end user needs to operate a needle valve from open to closed position on a high frequency basis, the "Life Series" provides all the inherent benefits of a Needle Valve while providing a longer service life compared to rigid hard seated needle valves where galling can occur from high frequency on/off operation. 
     
    Features:

    PTFE On/Off seal is easily replaced in the field, no tools required
    Exceptional Low Torque on/off operation
    Needle finish, SPI/SPE No. 1. Bubble tight, low torque shutoff long term performance.
    All injection molded, rugged design and construction
    24 Pitch metering thread. 20% Finer metering control. Excellent Linearity of Flow.
    Needle Stem is PTFE sealed for excellent chemical resistance & high purity.
    Integrally designed panel mounting, no fasteners required, mounts to panel thicknesses from 1/16" to 1/2".
    No elastomers (O-Rings), metals or lubricants, no corrosion, no contamination.

    End connections:
    1/4", 3/8", 1/2" Female NPT, Solvent Socket "Slip". Tube Connections Available Click Here. 
     
    Max Pressure Ratings:
    PVC: 180 PSI @ 72° Fahrenheit
    CPVC: 200 PSI @ 72° Fahrenheit
    Polypropylene: 150 PSI @ 72° Fahrenheit
    PVDF: 220 PSI @ 72° Fahrenheit
     
    Materials of Construction:
    Valve Body & Components: Injection molded in PVC, Glass & Mineral Reinforced Polypropylene, CPVC, & High Purity PVDF. FDA, USDA, and USP standards are either met and/or exceeded, please contact us for further validation. 
    Stem Seal & Integral Needle Tip: The stem seal and needle tip seal are machined from 100% Virgin PTFE (Polytetrafluoroethylene).
     
     
     
    PLEASE CLICK ITEM # BELOW TO VIEW ADDITIONAL SPECIFICATIONS & DOWNLOADS

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  • TPWKL-BLUE-PVC1

    "L Series" Repair Kits for Marquest Lab Fixtures & Throttle Master Needle Valves The Ultimate in On/Off Product Cycle Life *Offers all new PTFE Sealing with Unlimited Life Warranty. PTFE on/off seal is easily replaced in the field, no tools required. Exceptional low torque on/off operation Parts List: L Series PTFE Tipped Needle, Threaded Insert, Bonnet"Cap", Handle, Color I.D. Ring

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