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Series GRF Double Flanged Butterfly Valve

Brand: Keystone

A heavy duty double flanged concentric design resilient seated butterfly valve.
Features
  • Double flanged body design with face-to-face dimensions, according to EN 558 Series 20, API 609 and AWWA C504 short.
  • Designed according to EN 593 and API 609.
  • The seat is field replaceable and fully isolates the body and shaft from the flow.
  • Primary shaft sealing exceeds the pressure rating of the valve and prevents leakage through shaft area to atmosphere.
  • A secondary shaft sealing provides back-up safety.
  • A molded-in O-ring in the seat for flange sealing eliminates the need for gaskets.
  • Shaft seals prevent moisture penetrating into the shaft area.
  • Rounded polished disc edge gives full concentric sealing, lower torques, longer seat life and drop-tight shut-off.
  • Extended body neck allows for pipe insulation.
  • Top and bottom shaft bearings for optimized support and minimum friction and decreased torque.
  • Top bushing absorbs actuator side thrust loads.
  • All valves comply to Pressure Equipment Directive (97/23/EU) Module B1 + D, CE Marking.
  • Available approvals: ABS, NSF/ANSI STD 61.

Specifications

Brand

Enclosure, Body Material

  • 316 Stainless Steel
  • Carbon Steel ASTM A216
  • Ductile Iron

Flange Size - 24” (DN 600)

  • 24” (DN 600) - AS2129 Table D/E
  • 24” (DN 600) - ASME Class 125#
  • 24” (DN 600) - ASME Class 150#
  • 24” (DN 600) - AWWA C207 Table B/D/E
  • 24” (DN 600) - DIN PN 10
  • 24” (DN 600) - JIS 10K

Flange Size - 28” (DN 700)

  • 28” (DN 700) - AS2129 Table D/E
  • 28” (DN 700) - ASME Class 125#
  • 28” (DN 700) - ASME Class 150#
  • 28” (DN 700) - AWWA C207 Table B/D/E
  • 28” (DN 700) - DIN PN 10
  • 28” (DN 700) - JIK 10K

Flange Size - 30” (DN 750)

  • 30” (DN 750) - AS2129 Table D/E
  • 30” (DN 750) - ASME Class 125#
  • 30” (DN 750) - ASME Class 150#
  • 30” (DN 750) - AWWA C207 Table B/D/E
  • 30” (DN 750) - DIN PN 10
  • 30” (DN 750) - JIS 10K

Flange Size - 32” (DN 800)

  • 32” (DN 800) - AS2129 Table D/E
  • 32” (DN 800) - ASME Class 125#
  • 32” (DN 800) - ASME Class 150#
  • 32” (DN 800) - AWWA C207 Table B/D/E
  • 32” (DN 800) - DIN PN 10
  • 32” (DN 800) - JIS 10K

Flange Size - 36” (DN 900)

  • 36” (DN 900) - AS2129 Table D/E
  • 36” (DN 900) - ASME Class 125#
  • 36” (DN 900) - ASME Class 150#
  • 36” (DN 900) - AWWA C207 Table B/D/E
  • 36” (DN 900) - DIN PN 10
  • 36” (DN 900) - JIS 10K

Flange Size - 40” (DN 1000)

  • 40” (DN 1000) - AS2129 Table D/E
  • 40” (DN 1000) - ASME Class 125#
  • 40” (DN 1000) - ASME Class 150#
  • 40” (DN 1000) - AWWA C207 Table B/D/E
  • 40” (DN 1000) - DIN PN 10
  • 40” (DN 1000) - JIS 10K

Flange Size - 42” (DN 1050)

  • 42” (DN 1050) - AS2129 Table D/E
  • 42” (DN 1050) - ASME Class 125#
  • 42” (DN 1050) - ASME Class 150#
  • 42” (DN 1050) - AWWA C207 Table B/D/E
  • 42” (DN 1050) - DIN PN 10
  • 42” (DN 1050) - JIS 10K

Flange Size - 44” (DN 1100)

  • 44” (DN 1100) - AS2129 Table D/E
  • 44” (DN 1100) - ASME Class 125#
  • 44” (DN 1100) - ASME Class 150#
  • 44” (DN 1100) - AWWA C207 Table B/D/E
  • 44” (DN 1100) - DIN PN 10
  • 44” (DN 1100) - JIS 10K

Flange Size - 48” (DN 1200)

  • 48” (DN 1200) - AS2129 Table D/E
  • 48” (DN 1200) - ASME Class 125#
  • 48” (DN 1200) - ASME Class 150#
  • 48” (DN 1200) - AWWA C207 Table B/D/E
  • 48” (DN 1200) - DIN PN 10
  • 48” (DN 1200) - JIS 10K

Flange Size - 54” (DN 1350)

  • 54” (DN 1350) - AS2129 Table D/E
  • 54” (DN 1350) - ASME Class 125#
  • 54” (DN 1350) - ASME Class 150#
  • 54” (DN 1350) - AWWA C207 Table B/D/E
  • 54” (DN 1350) - DIN PN 10
  • 54” (DN 1350) - JIS 10K

Flange Size - 56” (DN 1400)

  • 56” (DN 1400) - AS2129 Table D/E
  • 56” (DN 1400) - ASME Class 125#
  • 56” (DN 1400) - ASME Class 150#
  • 56” (DN 1400) - AWWA C207 Table B/D/E
  • 56” (DN 1400) - DIN PN 10
  • 56” (DN 1400) - JIS 10K

Flange Size - 60” (DN 1500)

  • 60” (DN 1500) - AS2129 Table D/E
  • 60” (DN 1500) - ASME Class 125#
  • 60” (DN 1500) - ASME Class 150#
  • 60” (DN 1500) - AWWA C207 Table B/D/E
  • 60” (DN 1500) - DIN PN 10
  • 60” (DN 1500) - JIS 10K

Flange Size - 64” (DN 1600)

  • 64” (DN 1600) - AS2129 Table D/E
  • 64” (DN 1600) - ASME Class 125#
  • 64” (DN 1600) - ASME Class 150#
  • 64” (DN 1600) - AWWA C207 Table B/D/E
  • 64” (DN 1600) - DIN PN 10
  • 64” (DN 1600) - JIS 10K

Flange Size - 66” (DN 1650)

  • 66” (DN 1650) - AS2129 Table D/E
  • 66” (DN 1650) - ASME Class 125#
  • 66” (DN 1650) - ASME Class 150#
  • 66” (DN 1650) - AWWA C207 Table B/D/E
  • 66” (DN 1650) - DIN PN 10
  • 66” (DN 1650) - JIS 10K

Flange Size - 72” (DN 1800)

  • 72” (DN 1800) - AS2129 Table D/E
  • 72” (DN 1800) - ASME Class 125#
  • 72” (DN 1800) - ASME Class 150#
  • 72” (DN 1800) - AWWA C207 Table B/D/E
  • 72” (DN 1800) - DIN PN 10
  • 72” (DN 1800) - JIS 10K

Flange Type

  • Flat Face (FF)
  • Raised Face (RF)

Operating Temperature

  • -40° to 160° C (-40° to 320° F)

Seat / Seal Material

  • EPDM
  • Fluoroelastomer
  • NBR

Supply Pressure - Maximum

  • bar: 10
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