Description

Butterfly valves are the workhorse in a hydronic system needed to isolate flow with bubble-tight shutoff. Available in 2- to 24-inch sizes (60 – 610 mm) with Cv ranging from 144 to 33,154. Siemens butterfly valves control hot and chilled water with up to 50% glycol over a temperature range of -40° F to 250° F. Used with A-Series industrial actuators and OpenAir™ damper actuators.

  • 2″ – 24″ sizes (50 – 610 mm) – Full cut / Under cut discs – 2-Way / 3-Way assemblies
  • ASTM A126 Class A cast iron body – 316 Stainless steel disc (2″ – 12″)
  • Electronless nickel plated ductile iron disc (14″ – 24″)
  • 416 Stainless steel stem – Heavy duty acetal stem bearing
  • High purity, peroxide cured, high temperature EPDM seat
  • -40° F to continuous 250° F (-40 to 121° C) temperature range
  • Nitrile butadine rubber packing – Fit ANSI 125 flange
  • Molded-in resilient seat provides bubble-tight shutoff up to 175 Psi
  • On/off, floating and modulating control signals
  • Fail-in-place industrial actuators – Fail-safe operation with OpenAir actuators