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Butterfly Valves, KEYSTONEKeystone Figure 221/222 Butterfly Valve
The Keystone Figure 221/222 is an economical bonded resilient seated butterfly valve for bi-directional and
end-of-line service available in both wafer (Figure 221) and lugged (Figure 222) style.
- Material
- 304 Stainless Steel, 316 Stainless Steel, Buna-N, Cast Iron, Epdm Rubber
- Operating Temperature
- Up to 250 F (120 C)
- Pressure Class
- ASME
- Process Connection Type
- 150RF
- Seat/Seal Type
- Resilient
- Shutoff Class
- Zero Leakage
- Standards
- API 609, ASME B16.34
- Valve Size
- 5 inch, NPS 10 / DN 250, NPS 12 / DN 300, NPS 2 / DN 50, NPS 2-1/2 / DN 65, NPS 3 / DN 80, NPS 4 / DN 100, NPS 6 / DN 150, NPS 8 / DN 200
- Valve Size Standard
- NPS
- Valve Type
- Butterfly
- Shutoff Class
- Zero Leakage
- Standards
- API 609, ASME B16.34
- Valve Size
- NPS 8 / DN 200, NPS 6 / DN 150, NPS 4 / DN 100, NPS 3 / DN 80, NPS 2-1/2 / DN 65, NPS 2 / DN 50, NPS 12 / DN 300, NPS 10 / DN 250, 5 inch
- Valve Size Standard
- NPS
- Valve Type
- Butterfly
Features
- Bubble tight shut-off at full rated pressure in both directions.
- The F222 lugged version is suitable for bi-directional end-of-line service at full pressure rating.
- Top and bottom bearings absorbs side thrust loads.
- A moulded-in O-ring in the seat for flange sealing eliminates the need for flange gaskets.
- Body locating holes for easy installation and centering between flanges.
- Extended neck allows adequate clearance for flange and insulation.
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