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Proper selection, application and uses of today's smart positioners, controllers, and valve actuators.

BY Series Butterfly Valves

Product Announcement from Hayward Flow Control

BY Series Butterfly Valves-Image


A Better Butterfly Valve: Hayward Butterfly Valves up to 12" are rated at a full 150 PSI. Unlike other plastic butterfly valves, Hayward valves are constructed from a one piece body that incorporates fully supported flange bolt holes (the valve has the same number of bolt holes as the matching 150# ANSI flange). This prevents stressing of the mating pipe flanges. The heavy duty construction of the valve stands up to the most demanding applications. The rock solid integral mounting pad ensures that the valve operator will function reliably, regardless of the operator used; lever handle, gear operator or actuator.

Extra Features, No Extra Cost: Hayward Butterfly Valves feature a blowout proof stainless steel stem and a unique full body liner that has a V-notch retention design. This assures positive sealing of the liner to the valve body. An integrally molded face seal provides positive sealing against the mating flange without the need for additional gaskets. And the lever handle has a built in lockout feature.

Better Sealing: Other plastic butterfly valves have only a thin o-ring on the disc to seal the valve, but Hayward valves feature a full body liner seal. This means that the process media never contacts the valve body. And you can count on the full liner seal to perform reliably, year after year.

Easy Retrofit: Hayward Butterfly Valves can be easily fitted into a metal piping system. All valve sizes meet ANSI B16.10 face-to-face dimension standards, allowing simple retrofit.

No Metal, No Corrosion: These valves have no metal in contact with the process media. They cannot corrode or rust, nor will they contaminate sensitive fluids flowing through them.


  • Rated at 150 PSI
  • Full Body V-Notched Liner
  • Fully Supported Flange Bolt Holes
  • Stainless Steel, Blowout Proof Shaft
  • FPM, EPDM or Nitrile Liners
  • Wafer Body Design
  • Two-Year Warranty


  • Stem Extensions
  • Gear Operators
  • Electric or Pneumatic Actuators
  • PVDF Discs
  • 2" Square Operating Nut
  • Titanium Shaft
  • Lug Body Design
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