Butterfly Valve Description

ASC custom designs and engineers butterfly valves for pressure and temperature regulation of pneumatic systems. Butterfly valves are the most common type of valve used in the aerospace industry due to their relatively low pressure-drop characteristics and short installation length. ASC has flight-proven straight axis and canted axis butterfly valve designs in all types of pneumatic aerospace applications with flow temperatures from ambient up to 1200°F.

1420-4 Render Starboard lite

Butterfly Valve Specs

Options Include:

  • Aluminum, Stainless Steel, and Inconel
  • Pressure Regulation with Integral or Remote Downstream Sense
  • Canted Axis or Straight Axis
  • Servo Controlled (Modulating) (Analog or PWM Inputs)
  • Solenoid Controlled (13 to 32 VDC)
  • 1” to 4” Line Sizes, Larger Sizes Possible
  • Maximum Operating Conditions up to 350 PSIG; 1200°F
  • Ambient temperature up to 300°F
  • Position Feedback
  • Manual Operation
  • Manual Override

Butterfly Valve Applications

Butterfly valve applications are vast as they make excellent shutoff, regulating and modulating valves due to their low operating friction.  ASC butterfly valves are used for high pressure engine bleed regulation and shutoff (including bi-level), environment control system flow control (including bi-level regulation and modulation control), temperature control via a modulating three-way mixing valve, temperature control via heat exchanger flow modulation, wing anti-ice flow control/shutoff (including pressure regulation and modulation options), APU load control (via regulation and modulation), low pressure air shutoff and modulation (utilizing service air or electric motor actuation), etc.  These valves are qualified and used in military applications, helicopter applications, and almost all zones on turboprop and turbofan aircraft ranging from engine compartment to tailcone.

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