Allis Chalmers Butterfly Valve

Allis Chalmers Butterfly Valve (Streamseal) 

​​Sizes: 2 - 166" 

Aftermarket service and parts are available for the Allis Chalmers or the streamseal butterfly valve. We can provide parts, maintenance and refurbishment services. Please contact The Valve Agency with your inquiry service@thevalveagency.com or sales@thevalveagency.com. 


​​Product Features and Benefits:

  • Rugged and corrosion resistant
  • Domed disc design for low headloss
  • Resilient to stainless steel lock-in seating
  • Two-way, field adjustable thrust bearing
  • AWWA C504 and C516 compliant
  • Flow-through and low-profile disc designs available
  • Full rubber coating available for corrosive applications
  • Available in sizes 24”-168”
  • Manual, electric, or hydraulic actuation


  • Body, Cover: Cast Iron, ASTM A126 Class B
  • Disc: Ductile Iron, ASTM A536, Grade 65-45-12
  • Shaft: Stainless Steel
  • Seat: NBR, EPDM, Viton
  • Seat Ring: Stainless Steel
  • Shaft Seal: Bronze with Teflon Packing
  • O-Ring: Buna-N​