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Keystone Series 221/222 Butterfly Valves
An economical bonded resilient seated Butterfly valve for bi-directional and end-of-line service• F221 Wafer style valve• F222 Lugged style valve
Keystone Series 221/222 Butterfly Valves

Specs

Certifications
American Bureau of Shipping Shipboard, CRN, ABS
End Connection
Wafer, Lugged
Application
Pumps, Plant Air, Facilities & Process Utilities, Facilities, Evaporators & Dryers , Dust Collector Systems, Dryers, Cooling Water , Air Circulation, Balance of Plant, Blowers, Compressors , Chillers
Material
304 Stainless Steel, 316 Stainless Steel, Cast Iron, Buna-N, 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
ASME B16.34, API 609
Valve Size
NPS 8 / DN 200, 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, NPS 6 / DN 150
Valve Size Standard
NPS
Valve Type
Butterfly
Media
Hot Water, Air, Inert Gas, Air, Light Oil, Liquid, Vacuum, Water, Water Glycol
Stem
O-ring

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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