90F60904DA075, DynaFly Series – Butterfly Valve with Pneumatic Actuator – 900/922 Series

Additional information

Valve Size

4"

Valve Type

Butterfly

Connection Type

Wafer

Pneumatic Actuator Type

Double Acting

Weight

14.7

Body Material

Ductile Iron

Disc Material

Nickel Plated Ductile Iron

Seat Material

Buna

Stem Material

Stainless Steel

Temperature Range - Media

10° F to 180° F

Temperature Range - Ambient

-40° F to 176° F

Max Pressure

200psi

Series

900/922

Description

The DynaFly 90 Wafer and 92 Lug Series are the work horses of industrial butterfly valves. Pre-sized and preassembled with our HP series pneumatic actuators, these valves come standard with ductile iron body and disc and abrasion-resistant Buna-N Phenolic Backed Seat for stretch resistant, tight shut-off during actuation and quick and easy field repairs. Pilot solenoids, positioners, other pneumatic accessories or other valve body and seat materials are available on request.

See our 900/922 Series for detailed butterfly valve information.
See our HP Series for detailed pneumatic actuator information

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90/92 Series Specifications and Options:

  • Wafer Style (900) or Lug Style (922) Bodies
  • Standard Body Material: ASTM A536 Ductile Iron
  • Standard Disc Material: Ni-Coated Ductile Iron Also Available: 316 Stainless Steel
  • Standard Seat Material: Buna-N Also Available: EPDM, TFE, Viton®
  • 200 PSI CWP 2-12″ direct mount, 175 PSI CWP 14-24″ bracket mount
  • Temperature range: -40 deg F to 350 deg F (Dependent on seat material)
  • Operator: HP Series Pneumatic Actuator (DynaFly Series)

Key Actuator Specifications and Benefits

  • Operation: Available in Double Acting, Spring Return Fail Close and Spring Return Fail Open
  • Body: Extruded Aluminum Alloy
  • Piston: Aluminum Alloy, ASTM B179
  • End Cap: Aluminum Alloy, ASTM B179, Epoxy Coated
  • Drive Shaft: Forged Steel, ASTM A105 Nickel Plated
  • Seal, O-Rings: Buna N
  • Bearings: Delrin 500
  • Fasteners: SS ASTM A193-B8
  • Nuts: SS ASTM A194-GR8
  • Loaded Springs: Steel, Zinc Phosphate Coated
  • Operating Temperature -40° F to 176°F;

Optional Actuator Accessories such as Pilot Solenoid Valves, Valve Position Limit Switches, Electro-Pneumatic Positioners and others can be found in Pneumatic Actuator Accessories

Key Valve Specifications and Benefits

  • Support Shaft Seal: A bonding of elastomer to phenolic backing ring protects against distortion, a common cause of shaft leakage
  • Wide flange-face sealing area provides a tight flange-to-valve seal and negates the need for flange gaskets
  • Once-piece 416 Stainless Steel stem shaft ensured dependability and positive disc positioning
  • Locating holes at bottom and top of Wafer Valve Ease Installation. Lug style valve has drilled and tapped lugs meeting ANSI 125/150 flange standards
  • Precision Profile Disc provides bubble-tight shut-off and assures minimum torque and longer seat life
  • Set Screw stabilizes the seat to prevent movement. Suitable for dead-end service to full rated pressure in preferred flow direction
  • Precision Taper Pin Ensures a positive vibration proof shaft to disc connection
  • Once-piece 416 Stainless Steel stem shaft ensured dependability and positive disc positioning
  • Four Bushings furnish shaft support for positive shaft alignment and actuator support