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 Stopper Wafer Type Butterfly Valve

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High Performance Stopper Wafer Type Butterfly Valve

AIRA offers a Pneumatic Actuator Operated Techo Model Butterfly Valve with a S.G. Iron / CF8 / CF8M Body and CF8 / CF8M Disc, featuring a 2-piece body, Teflon sleeve, mirror finish disc, and PN 10 pressure class. The valve comes with a replaceable muffler, ensuring reliable performance in demanding applications.

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: Wafer Type
  • Valve Rating: Flanged 150#
  • Spark Test: 15 KV DC to 40 KV DC
  • Body Type: Wafer Type
  • Stem Material: CF8, CF8M, WCB + ENP, HAST ALLOY, DUPLEX, MONEL, CF3M
  • Size Range: 2'' to 24'' (50 MM to 600 MM)
  • Temperature Range: -50°C to 300°C for Soft Seated Valves (Contact Works 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, HAST ALLOY, MONEL
  • Disc Material: CF8, CF8M, WCB + ENP, HAST ALLOY, DUPLEX, MONEL, CF3M
  • Sleeve Material: PTFE, RPTFE, CFT, GFT, TFM-1600, AIRA-250, NYLON, DEVLON, PEEK
  • Flanged Drilling: ISO 5211 II
  • Fugitive Emissions: Yes
  • Shut Off Rating: VI Class
Features & Benefits
1 – Upper Stem Bushing: Provided with a stainless steel retainer ring to absorb actuator side thrusts; made of acetal as standard or PTFE as an option.
2 – Upper Stem Seal: Prevents environmental contaminants from entering the stem bore.
3 – Body: Two-piece wafer or lug style body, epoxy coated, conforms to ASME Class 150 or DIN 3840 flange drilling standards (24” size is double flanged).
4 – Bearings: PTFE impregnated steel bearings ensure precision alignment of upper and lower stems.
5 – Blowout Proof Stem: Upper stem includes a machined shoulder for positive disc-stem connection during assembly.
6 – Primary Seal: Achieved via interference fit between wide disc hubs and the contoured seat.
7 – Seat Design: Unique geometry reduces seating/unseating torque and minimizes wear on contacting parts.

Direct Mounting As Per ISO 5211

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