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Keystone Figure 221/222 Butterfly Valves
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.
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Keystone Figure 221/222 Butterfly Valves
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Specifications
| Material | : 304 Stainless Steel, 316 Stainless Steel, Buna-N, Cast Iron, Epdm Rubber |
| Operating Temperature | : Up to 250 F (120 C) |
| rocess Connection Type | : 150RF |
| Seat/Seal Type | : Resilient |
| 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 |
Feature:
– 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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