V-Notch Ball Valves

V-Notch Ball Valves Series 310

The V–Notch Ball Valve gives non-clogging, high capacity, straight through flow control of fluids containing pulp and paper stock or slurries and fluids containing suspended solids or fibrous materials.

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Specification Document

Design Features

  • Shearing effect between the ball and seal ensures tight shut-off, even on fibrous slurries.
  • The unrestricted, straight through flow design provides high capacity and wide rangeability.
  • Precise contouring of the V-notch balls provides a nearly equal percentage characteristic.
  • Replaceable ball seal and back up ring for added rigidity.
  • Ball machined to a super smooth finish, hard-chrome plated and polished to increase ball seal life.
  • High CV to body size ratio.

About V-Notch Ball Valves

The V–Notch Ball Valve gives non-clogging, high capacity, straight through flow control of fluids containing pulp and paper stock or slurries and fluids containing suspended solids or fibrous materials.

The V- Notch Ball Valves are offered squared and clamped driven shaft plus ball shaft with splined connection designed for zero lost motion for highly accurate positioning and precise control.

    Product Specifications

    Design CodeBS 5351
    Valve Size25 to 200 mm (1” to 8”)
    RatingANSI 150 and 300
    End ConnectionFlanged
    F/F DimensionsANSI B-16.10
    Flow CharacteristicApprox. Equal Percentage, Linear, On-Off
    Body MaterialCarbon Steel, Stainless Steel
    Ball MaterialStainless Steel
    Seat RingPTFE, Carbon Filled Teflon
    Ball RingCF8M, Alloy Steels
    GasketPTFE, Graphite Laminate
    Gland PackingPTFE Chevrons, Graphite, Low Emission
    Actuator FormDiaphragm, Piston, Electric
    Actuator TypeRotary
    DiaphragmNitrile / Neoprene (nylon reinforced)
    Spring Range3 – 15 Psig (0.2 – 1.0 Kg/cm2) 6 – 30 Psig (0.4 – 2.0 Kg/cm2)
    Air Supply20 – 35 Psig (1.4 – 2.5 Kg/cm2)
    Air Connection1/ 4” or 1/ 2” NPT
    AccessoriesValve Positioners (Pneumatic, Electro-Pneumatic, Smart), Instruments (Airset, Solenoid Valve, Volume Booster, Airlock, Limit Switches)
    FeaturesTop Mounted Hand Wheel, Side Mounted Hand Wheel, Limit Stops Removable Blind Head, Steam Jacketing

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