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  • Hoke 1300 Series Primary Image

    Features & Benefits

    • Metering accuracy - 18 turn displacement of stem provides unparalleled preformance and repeatability
    • 1° and 3° stems provide a wide flow range with ultra fine metering control
    • Precision orifice and close thread tolerances minimize hysteresis
    • Micrometer vernier handle provides visual control and repeatable stem settings

    Typical Applications

    • Fine metering in medical and biochemical gas or vapor analysis
    • Sampling and analyzing water and air pollution
    • Chromatographs, mass spectrometers and other instruments where fine metering is required

  • Hoke 1600 Series Primary Image

    Features & Benefits

    • 18 turn non-rotating stem
    • Low internal volume provides low flow control
    • Unique thread design allows tapered needle portion of the stem to be withdrawn into the outer stem
    • O-ring seals below the stem threads provide smooth operation and eliminate backlash
    • Dial indicator provides repeatable positioning of stem in full turns and tenths of a turn from closed to full open

    Typical Applications

    • Chromatography
    • Mass Spectroscopy
    • Sampling and fine metering
    • Pollution analyzing instrumentation

  • Hoke 2300 Series Primary Image

    Features & Benefits

    • 20 turn stem deplacement for fine metering
    • Optional micrometer vernier handle provides visual control and repeatable stem settings.
    • 2 orifice sizes 0.062" (1.59mm) and 0.125 (3.17mm) are available with standard 8° stem.
    • Spring loaded stem in all 316 stainless steel valves prevents galling and enlargement of orifice.
    • For ultra fine metering, a 1° spring loaded stem design is available.

    Typical Applications

    • Metering liquids and gases on analytical equipment 
    • Laboratory sampling
    • Gas chromatography, analyzers
    • Flow meters and gauges



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1533 Gehman Road | Harleysville, PA 19438 | Phone: 267-933-6300 | Fax: 267-933-6305 | Toll Free: 800-645-6733 | Email: [email protected]
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