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Butterfly Valves

Ideal for precision throttling and on-off applications, especially in lighter-weight piping systems, the Flowserve family of butterfly valves is often specified for its versatility. Outstanding throttling accuracy for process control is achieved through low-friction, erosion resistant sealing surfaces with very low operating torques.

Featured Solutions

  • High Performance Butterfly Control Valves - Valdisk

    The Valtek Valdisk™ is a double offset butterfly valve used whenever high capacity is needed with the lowest possible pressure loss. The Valdisk High Performance Butterfly Control Valves is a Heavy-duty design engineered for high-capacity and low-pressure loss. Ideal for fibrous slurries, liquids, and gas and steam applications under extreme pressures and temperatures.

    Features & Benefits:

    • Low profile, low weight body provides a low cost solution
    • Double offset shaft lifts the seat quickly out of the seat to minimize seat wear and allow low torque for great control
    • Metal and soft seat options provide tight shutoff in both flow directions
    • High-performance throttling, even in large pressure drops close to the seat,
      enabled by high-thrust cylinder actuator coupled with eccentric-cammed disc
    • Greater throttling accuracy assured by low breakout torque provided by jam-lever
      toggle seating
    • Superior process control with bi-directional, bubble-tight shutoff at high and low
      pressure drops
    • Reduced maintenance costs made possible by double-offset disc design, which
      minimizes seat and disc wear plus reduces leakage

    Design Range

    Size Range: NPS 2, 3, 4, 6, 8, 10, 12, 14, 16, 18, 20, 24, 30, 36, 42, 48, 52

    Pressure Class Range: ASME class 150, 300, 600, 900, 1500

    Seating Material: Metal or soft seat

    SPECIFICATIONS:
    Sizes: DN 50 to 750; NPS 2 to 30
    Press: PN 10 to 400; Class 150 to 2500
    Temp: -196°C to 649°C
    (-320°F to 1200°F)

    Standards

    ASME (B16.34, B16.10, B16.25), PED, DIN, CRN, ISO, NACE, EN

    To learn more about the Valdisk High Performance Butterfly Control Valves and other Butterfly Valves offered at BBP, click here. 

  • High Performance Butterfly Control Valves - Valdisk BX

    The High Performance Butterfly Control Valves – Valdisk BX is a double offset, butterfly control valve designed to meet the most routine and rigid service requirements. Learn more about control valves and butterfly valves from BBP.

    High Performance Butterfly Control Valve – Valdisks BX FEATURES & BENEFITS:

    • Primary stem seal plus two optional secondary seals provide triple leak protection
    • The retainer is locked in the valve body by a unique lock or fasteners – depending on size
    • Adjustable, live-loaded packing options available
    • Low profile disc increases capacity and provides better flow control

    Available Materials:

    • Carbon steel
    • Stainless steel
    • Alloy 20
    • Hastelloy C
    • Inconel
    • Monel
    • Nickle

    Lug and Wafer Body Styles Available:

    • 150 through 300 lb class
    • 2″ through 30″

    Simple Solid Design:

    • Fewer parts for easy installation
    • Lightweight and compact for easy maintenance
    • Safe, reliable anti-blowout protection per ASME B16.34

    High Capacity:

    • Low profile disc for more capacity and better flow
    • Higher FL for better pressure recovery

    Fugitive Emissions Packing Options:

    • Teflon V-ring
    • SafeGuard
    • SureGuard
    • Grafoil
    • Others on request

    High Cycle Life:

    • Eccentric, Double offset disk
    • Bearing Designs
    – Triple chrome plated 316 bearings
    for harsh service, long life
    – Proven PTFE/Fiberglass (Poly Lube®)
    pressure molded bearings for long life
    – Proven PTFE/metal backed pressure
    molded bearings for long life

    Tight Shutoff:

    • Bidirectional metal class IV with TriFlex seat
    • Bidirectional soft class VI
    • Large diameter one-piece shaft
    • Self-centering seat

    DOWNLOAD BROCHURE
  • Flowserve NAF Triple Offset Butterfly Valves Torex

    High-performance, triple-offset, metal- or soft-seated butterfly valve frequently used for isolation or on-off applications, but equally suitable for control, especially on high-flow, low-pressure applications. High Performance Butterfly Valves – Torex Features & Benefits:

    • Longer service life provided by triple-offset design, which minimizes seat wear during opening and closing
    • Minimized pressure loss and low energy costs due to tight shutoff
    • Low installation costs enabled by compact wafer design and low weight
    • Improved safety assured by Safety Integrity Level (SIL) 3 and IEC 61508 certification
    • Increased uptime — even in difficult media and demanding pressures — through excellent design, materials and performance characteristics

    SPECIFICATIONS
    Sizes: DN 80 to 700; NPS 3 to 28
    Press: PN 10 to 40; Class 150 and 300
    Temp: -30°C to 350°C (-22°F to 662°F)

    The Flowserve High Performance Butterfly Valves – Torex are technically and financially strong alternative to other valve types, especially larger valves. High tightness class in combination with a short face-to-face makes it suitable for many applications within pulp and paper, chemical and petrochemical, oil and gas, power plants, and steel works.

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  • Flowserve Valtek Segmented Ball Valves ShearStream HP

    The Shearstream HP Segmented Ball Valve is a segmented, ball control valve that provides exceptional control and rangeability for the process industries.

    Industry Sectors:

    • Pulp & paper
    • Basic (organic & inorganic)
    • Water
    • Midstream Transportation
    • Conventional Steam

    Design Range:

    Size Range: NPS 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 16

    Pressure Class Range: ASME class 150, 300, 600

    Seating Material: Metal or soft seat

    Shearstream HP Features:

    • Segmented ball controls very low flow rates and can open up to large flow rates, resulting in a 300:1 turndown
    • Segmented ball provides shearing action as it moves through the seat to cut through debris and provide reliable shutoff
    • Metal, soft, and heavy duty seat options provide reliable tight shutoff for a variety of applications and process conditions

    One-piece body

    • High performance ensured regardless of flange torque loads
    • Seal tightness not altered by piping forces, as in two-piece bodies
    • One leak path eliminated

    Segmented V-notch ball

    • Clogging reduced
    • “V” shaped orifice exceeds 300:1 rangeability
    • Excellent shearing action in fibrous fluid mediums

    Tight shut-off seats

    • Metal seal provides greater than ANSI Class IV shutoff
    • Soft seals achieve ANSI Class VI shutoff

    Self-centering ball

    • Seal installation improved and simplified
    • Shutoff further improved

    No-shim seal

    • Servicing and installation problems reduced

    Thick-walled retainer

    • Valve’s normal service life extended in erosive environments

    Flangeless design standard

    • Reduced cost

    Separable flange option

    • Bolt length reduced, avoiding bolt stretch and leakage in event of fire
    • Flange bolting aligns easier
    • Reduced cost with alloys

    Integral flange option

    • Bolt length reduced, avoiding bolt stretch and leakage in event of fire

    Learn more about control valves available from BBP.

    DOWNLOAD BROCHURE

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