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    Butterfly Valves

    VFF2 Resilient Seated 2-Way Butterfly Valve

    VFF2 resilient seated 2-way butterfly valves provide control for HVAC systems, including chilled water, hot water, cooling tower water, and thermal storage systems.

    Overview

    VFF2 2-way resilient seated, flanged butterfly valves provide compact, 2-position, and modulating control of hot water and chilled water-glycol solutions in HVAC systems. Valve sizes range from 2 to 20 inches. Valves with full-cut disks provide up to 175 psi close-off. These valve assemblies are shipped with factory-mounted electric or pneumatic actuators with a variety of control signal inputs. They are also available as non-actuated models with either lever or gear manual operators for use as shut-off and balancing valves. Spring return actuators are available in normally closed 2-way configurations.

    Features & Benefits:
    • Bi-directional flow
    • Modified equal percentages flow characteristic
    • Extended neck for 2 inches of pipe insulation
    • Nylon 11-coated, cast iron disks for corrosion resistance, reduced friction, and use of lower-torque actuators with larger valve body sizes
    • Cast iron valve body polyester-coated for weather, chemical, ultraviolet, abrasion, and impact protection
    • Stainless steel valve stem with close-tolerance internal double-D disk connection with no points for corrosion access
    • Peroxide-cured EPDM resilient valve seat doubles as flange gasket
    • Bubble-tight seat leakage at rated close-off
    • Anti-condensate heaters standard with NEMA 4X and NEMA 4 actuators
    • Declutchable override handwheel standard with NEMA 4X actuators, non-declutchable override handwheel standard with NEMA 4 actuators
    Specifications

    Others

    • Torque For Maximum Delta P
      • 564 lb-in
      • 64 Nm
    • Media Temperature Range
      • -40 - 121 degree Celsius
      • -40 - 250 degree Fahrenheit

    Others

    • Torque For Maximum Delta P
      • 564 lb-in
      • 64 Nm
    • Media Temperature Range
      • -40 - 121 degree Celsius
      • -40 - 250 degree Fahrenheit
    • Torque For Maximum Delta P : 564 lb-in|64 Nm
    • Media Temperature Range : -40 - 121 degree Celsius|-40 - 250 degree Fahrenheit
    Reference Guides
    Name
    Description
    File Size
    Date
    Size
    Resilient Seat Butterfly Valves
    application/pdf 1.1 MB
    10/3/2024
    1.1 MB
    Butterfly Valves Quick Selection Guide (Spanish)
    application/pdf 932.97 KB
    10/3/2024
    932.97 KB
    Brochure
    Name
    Description
    File Size
    Date
    Size
    Chilled Water Controls
    application/pdf 238.75 KB
    6/21/2023
    238.75 KB
    Data Sheet
    Name
    Description
    File Size
    Date
    Size
    Product Data
    application/pdf 1.52 MB
    1/1/2013
    1.52 MB
    Name
    Description
    File Size
    Date
    Size
    Resilient Seat Butterfly Valves
    application/pdf 1.1 MB
    10/3/2024
    1.1 MB
    Product Data
    application/pdf 1.52 MB
    1/1/2013
    1.52 MB
    Butterfly Valves Quick Selection Guide (Spanish)
    application/pdf 932.97 KB
    10/3/2024
    932.97 KB
    Chilled Water Controls
    application/pdf 238.75 KB
    6/21/2023
    238.75 KB
    Name
    Description
    File Size
    Date
    Size
    Resilient Seat Butterfly Valves
    1.1 MB
    10/3/2024
    Butterfly Valves Quick Selection Guide (Spanish)
    932.97 KB
    10/3/2024
    Chilled Water Controls
    238.75 KB
    6/21/2023
    Product Data
    1.52 MB
    1/1/2013
    Part Number
    Description
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