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).
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.
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).
"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
