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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High Performance Metal Seated Spherical Disc Butterfly Valve

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High Performance Metal Seated Spherical Disc Butterfly Valve

"AIRA" proudly introduces its premium butterfly valve, engineered with a special no-deposit disc design to ensure optimum performance and extended service life. Fitted with a PTFE seat, it promotes uninterrupted flow and superior process integrity. This customized butterfly valve is ideal for powder handling applications, making it the preferred choice for pharmaceutical and chemical operations.
Choose reliability. Choose performance. Choose AIRA.

Specifications & Standards
  • Design & Manufacturer: API 609 Category A / BS-EN-593
  • Valve Face to Face Dimension: API 609 Category A
  • Inspection & Testing: API 598 / BS EN 12266 Part-1
  • Leakage Class: Class VI
  • End Connection: Lug Type
  • Valve Rating: Flanged 150#
  • Spark Test: 15 KV DC to 40 KV DC
  • Body Type: Lug Type
  • Fugitive Emissions: Yes
  • Size Range: 2'' to 24'' (50 MM to 600 MM)
  • Temperature Range: -50°C to 300°C for Soft Seated Valves (Contact for Special Requirements)
  • Pressure Class: PN-6
  • Body Material: Cast Iron (CI), Ductile Iron (DI), S.G. Iron (SGI), WCB, CF8, CF8M, CF3M, SS 304L, Duplex, Hastelloy, Monel
  • Disc Material: CF8, CF8M, WCB + ENP, Hastelloy, Duplex, Monel, CF3M
  • Sleeve Material: PTFE, RPTFE, CFT, GFT, TFM-1600, AIRA-250, Nylon, Devlon, PEEK, FEP
  • Flanged Drilling: ISO 5211 II
  • Shut Off Rating: VI Class
  • Stem Material: CF8, CF8M, WCB + ENP, Hastelloy, Duplex, Monel, CF3M
Features & Benefits
1 – Upper Stem Bushing: Stainless steel ring-retained bushing absorbs actuator side thrusts; available in acetal (standard) or PTFE (optional).
2 – Upper Stem Seal: Prevents entry of environmental contaminants into the stem bore.
3 – Body: Two-piece lug or wafer style body, epoxy coated; conforms to ASME Class 150 / DIN 3840 (24" is double flanged).
4 – Bearings: PTFE-impregnated steel bearings for precise stem alignment.
5 – Blowout Proof Stem: Machined shoulder creates a secure stem-to-disc connection during assembly.
6 – Primary Seal: Achieved via interference fit between wide disc hubs and contoured seat.
7 – Seat Design: Unique seat geometry minimizes seating/unseating torque and wear on contact surfaces.
Direct Mounting As Per ISO 5211

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