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 Spherical Disc Butterfly Valve

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High Performance Spherical Disc Butterfly Valve

AIRA introduces its premium butterfly valve, engineered with a no-deposit disc design to ensure optimal performance and long-lasting reliability. Fitted with a PTFE seat, it enables seamless flow while preserving process integrity. Specifically crafted for powder applications, this valve ensures unmatched efficiency.
Invest in reliability. Invest in performance. Choose AIRA. The perfect solution for pharmaceutical and chemical operations.

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: Double Flanged
  • Valve Rating: Flanged 150#
  • Spark Test: 15 Kv DC to 40 Kv DC
  • Body Type: Double Flanged
  • Shut Off Rating: VI Class
  • Size Range: 4" to 24" (50MM to 600MM)
  • Temperature Range: -50°C to 300°C for Soft Seated Valves (Contact for special requirement)
  • 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
  • Fugitive Emission: Yes
  • Stem Material: CF8, CF8M, WCB + ENP, Hastelloy, Duplex, Monel, CF3M
Features & Benefits
1 – Upper Stem Bushing: Stainless steel ring-retained acetal (or PTFE optional) bushing absorbs actuator side thrusts.
2 – Upper Stem Seal: Prevents environmental contaminants from entering the stem bore.
3 – Body: Two-piece wafer or lug style, epoxy coated, meets ASME Class 150 / DIN 3840 flange drilling standards; 24” body is double flanged.
4 – Bearings: PTFE-impregnated steel bearings provide precision alignment of upper and lower stem.
5 – Blowout Proof Stem: Machined upper stem shoulder and press-fit disc connection ensure secure, blowout-proof assembly.
6 – Primary Seal: Interference fit between extra wide disc hubs and contoured seat for optimal sealing.
7 – Seat Design: Low-torque unique seat geometry reduces wear on contacting parts and enhances longevity.
Direct Mounting As Per ISO 5211

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