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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

    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)


    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

  • 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

    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.

  • 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.



Sales Inquiries & Customer Support

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