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Figure 9 Butterfly Valve
Brand: KeystoneA resilient seated butterfly valve for general-purpose applications.
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.
Specifications
Brand
Applications
- Air Circulation, Facilities & Process Utilities
End Connection
- Wafer
Material
- 316 Stainless Steel, Cast Iron
Media
- Air, Liquids, Water
Operating Temperature
- Up to 250° F (120° C)
Pressure Class
- ASME
Process Connection Type
- 150 RF
Seat / Seal Type
- Resilient
Shutoff Class
- Zero Leakage
Stem
- O-Ring
Valve Size Standard
- NPS
Valve Type
- Butterfly
- Dry Bulk Conveying
- Food And Beverage Processing
- Corrosive Slurries
- Paperstock