๐Ÿ’ช EXTREME DUTY DESIGN

Type-55 Butterfly Valve

Quarter-turn butterfly valves with epoxy powder coated ductile cast iron body and PTFE disc and liner. Designed for extreme applications where conventional rubber liners and thermoplastic discs would fail.

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Type-55 Butterfly Valve

Extreme Duty Construction

Engineered for the harshest environments

๐Ÿ›ก๏ธ Built for Extreme Conditions

Type-55 features an epoxy powder coated ductile cast iron body with PTFE disc and liner - purpose-built for applications where conventional rubber liners and thermoplastic discs would fail. Perfect for corrosive atmospheres and demanding chemical processing environments.

Premium Features

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PTFE Disc & Seat

Highly corrosion resistant PTFE disc and seat provide exceptional chemical resistance and durability.

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Epoxy Coated Body

Epoxy powder coated ductile iron body designed for corrosive atmospheres and harsh environments.

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High Cv Value

Strong but thin disc design provides high Cv value for excellent flow characteristics.

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Non-Wetted Stem

Stainless steel 304 stem with full disc engagement is completely isolated from the media.

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Minimal Wetted Parts

Only PTFE disc and PTFE seat contact the media for maximum chemical resistance.

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Bubble-Tight Shut-Off

Precision engineered sealing surfaces ensure bubble-tight shut-off for critical applications.

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Full Vacuum Rated

Rated for full vacuum service for demanding low-pressure applications.

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Locking Device

Integrated locking device for secure positioning and safety compliance.

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21-Position Throttle

21 position throttle plate for lever handle style enables precise flow control.

Key Advantages

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Extreme Chemical Resistance

PTFE construction provides unmatched chemical resistance for the most aggressive media.

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Robust Construction

Ductile cast iron body with epoxy coating ensures long-term durability in harsh environments.

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Dual Service

Equal percentage flow characteristics suitable for both on/off and modulating service.

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Superior Flow

High Cv value and thin disc design maximize flow capacity while maintaining strength.

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Corrosive Atmosphere Ready

Specifically designed for corrosive atmospheres where plastic valves may fail.

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Actuation Ready

Compatible with pneumatic and electric actuators for automated control.

Technical Specifications

Sizes Available

  • 2" (50.8mm)
  • 3" (76.2mm)
  • 4" (101.6mm)
  • 5" (127mm)
  • 6" (152.4mm)
  • 8" (203.2mm)
  • 10" (254mm)

Body Material

  • Ductile Cast Iron
  • Epoxy powder coated
  • Corrosion resistant
  • Robust construction

Seat Material

  • PTFE (Polytetrafluoroethylene)
  • Backed with Neopreneยฎ
  • Chemical resistant
  • Temperature resistant

Disc Material

  • PTFE (Polytetrafluoroethylene)
  • Highly corrosion resistant
  • Strong but thin design
  • High Cv value

Stem Material

  • Stainless Steel 304
  • Full disc engagement
  • Non-wetted design
  • Corrosion resistant

Models & Operators

  • Wafer Style body
  • Lever: 2" โ€“ 5"
  • Gear: 2" โ€“ 10"
  • 21-position throttle plate

Actuation Options

Professional automation solutions

โšก Electric Actuation

  • Series 19 On/Off
  • Series 19 Failsafe
  • Series 19 Modulating
  • Series 19 Modulating Failsafe
  • Series 10
  • Series 92
  • Series 94

๐Ÿ’จ Pneumatic Actuation

  • Standard pneumatic actuators
  • Failsafe options available
  • Compatible mounting
  • Reliable operation

๐Ÿ”ง Manual Operation

  • Lever handle (2" โ€“ 5")
  • Gear operator (2" โ€“ 10")
  • 21-position throttle plate
  • Locking device included

Ideal Applications

Isolation Valves
Control Valves
Chemical Processing
Mining Operations
Corrosive Atmospheres
Extreme Environments
Heavy Industry

Extreme Duty Performance

Download datasheets and dimensional guides for complete specifications

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