VSI Waterworks’ Series BFI Butterfly Valves

The VSI Waterworks’ BFI Butterfly Valve is an AWWA butterfly valve, designed to be an economical flow control solution for line sizes of 2” through 30”.

The body is fully lined with resilient material to match the line media’s properties, allowing no media-to-body contact. The concentric design features a one piece shaft, which is available in a variety of materials and pinned to a standard ductile iron or stainless steel disc. The streamlined disc guarantees low cavitation and high valve coefficients.

Valves in this line are designed and constructed to meet and exceed AWWA C504.

For more information on our Series BFI butterfly valves, please click the Documentation tab on the left or send us an email. If you prefer to speak with one of our engineers, please call 770-740-0800.

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  • Size Range: 2-30” (50-750mm)
  • Temperature Range: to 325F
  • Pressure Ratings: 150psi, 250psi CWP
  • Velocity Ratings: 16 ft/sec per AWWA C504 Class 150B or 250B
  • Body Material: Ductile iron, cast iron
  • Disc Material: Ductile iron, cast iron, bronze, stainless steel
  • Connection: Flanged or Mechanical Joint
  • Operator: Lever, hand wheel, chainwheel, nut, pneumatic, hydraulic, electric
  • Available Options: Special materials, AWWA long body lay length, custom bolt patterns, higher velocity
    *Many other options are available upon request.


Size Description Document
All Sizes Product Brochure DOC-00000656
All Sizes Valve Specifications DOC-00000661
2"-30" Material Cross Section List BFI-1021R3
3"-30" AWWA C504 Proof of Design Certification Additional Individual Size Certifications Available Upon Request
24" AWWA C504 Proof of Design Certification C504-06-24 Molded
All Sizes Installation, Operation, and Maintenance Manual DOC-00000659
All Sizes BFI Gear Orientation Sheet BFI Gear Orientation Sheet
All Sizes 1 Year Warranty Warranty 1 Year From Acceptance
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