Back To Top
Keystone Figure 9 Butterfly Valve
Figure 9 Butterfly Valve
A resilient seated Butterfly valve for general purpose applications
Keystone Figure 9 Butterfly Valve

Specs

End Connection
Wafer
Application
Air Circulation, Facilities & Process Utilities
Material
316 Stainless Steel, Cast Iron
Operating Temperature
Up to 250 F (120 C)
Pressure Class
ASME
Process Connection Type
150RF
Seat/Seal Type
Resilient
Shutoff Class
Zero Leakage
Valve Size Standard
NPS
Valve Type
Butterfly
Media
Air, Liquids, Water
Stem
O-ring

Features

  • Bubble-tight shut-off at full pressure rating (PTFE lined configuration is drop tight).
  • The seat and the disc are the only two valve parts in contact with the medium.
  • Superior design for abrasive and erosive media.
  • Famous Keystone dovetail seat design.
  • Very low pressure drop.
  • Large number of material combinations available.
  • Standardized actuator flange for easy operator interchangeability.
  • Top bushing absorbs side thrust loads.
  • Hub seal provided by preloaded contact between flatted seat surface and disc hub area for positive sealing at all disc positions.
  • One-piece wafer thin disc stem gives the very minimum obstruction to flow.
  • Field replaceable seat isolates the body and stem from the flow.
  • Molded-in O-rings provides flange sealing and eliminates need for gaskets.