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

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