Aira Pneumatics
Aira Pneumatics

Welcome to Aira Pneumatics, your trusted partner in pneumatic solutions and valve systems in India. As an authorized dealer for renowned brands such as Airmax Pneumatics, Aira Valves, Cair, SuzhiK, 4MA, Yukon, and Hydint, we are committed to delivering innovative and high-quality products tailored t... Read more

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Double Offset Metal With Grafoil Laminated Seated Double Flanged Butterfly Valve

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Double Offset Metal With Grafoil Laminated Seated Double Flanged Butterfly Valve

“aira” Offers Pneumatic Actuator Operated Butterfly/Wafer Damper — a versatile solution primarily used as a stack damper where tight shut-off isn’t critical. Perfect for flue-gas scrubbers, it’s lightweight, quickly actuated, and cost-effective. With a simple 90° operation, it adapts well to oval duct shapes and may also be seen as a double-disc butterfly, resembling a two-bladed louver damper. Torque requirements may vary with time due to corrosion and thermal effects.

Specification & Standard
  • Design & Manufacturer: API 609 Category A, IS: 13095, BSEN 593
  • Valve Face To Face Dimension: ASME B 16.10 (Other F to F available on request)
  • Inspection & Testing: API 598, BSEN 12266-1
  • Seat Leakage Class: 5% Leakage of Full Flow (Class 1 available on request)
  • End Connection: Wafer Type
  • Top Flange Drilling: ASME B16.5 / 16.47 Series A Class 150
  • Certification: Design CE Approved, SIL3 Approved, POD
  • Size Range: 1½" to 20" (40 MM to 500 MM)
  • Temperature Range: -50°C to 300°C for soft seated valves (Contact works for special requirement)
  • Pressure Class: 150#
  • Leakage Class: 5% Leakage of Full Flow
  • Body Material: Cast Iron, S.G. Iron, M.S.
  • Disc Material: SS 304, SS 316, M.S.
  • Seat Material: SS 304, SS 316, Metal to Metal
Features & Benefits
  • Damper Functionality: Allows for effective regulation of airflow, enhancing control over ventilation and exhaust systems.
  • Robust Construction: Made from high-quality materials to ensure durability and reliability under challenging conditions.
  • Smooth Operation: Designed for easy adjustment and minimal resistance, promoting efficient airflow management.
  • Compact Design: Space-saving design makes it suitable for installations in tight or constrained spaces.
  • Versatile Applications: Ideal for use in HVAC systems, industrial processes, and other applications requiring precise airflow control.
Direct Mounting As Per ISO 5211

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