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

contact us

Wafer Type Damper Valve

Wafer-Type-Damper-Valve.webp

Wafer Type Damper Valve

AIRA offers FEP / PFA lined valves designed for consistent performance in highly corrosive applications such as Chlorine, Benzene, Sulphuric Acid, Nitric Acid, Phosphoric Acid, Hydrochloric Acid, and Sea Water. Made from virgin-grade resin with thick fluoropolymer linings, they offer superior resistance to chemical effects, absorption, and swelling.

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'' (100MM to 600MM)
  • 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
  • Fugitive Emission: Yes
  • 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; made from Acetal (standard) or PTFE (optional).
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 ensure precise alignment of upper and lower stems.
5 – Blowout Proof Stem: Machined shoulder ensures secure stem-to-disc connection via press-fit.
6 – Primary Seal: Interference fit between extra-wide disc hubs and contoured seat ensures a tight seal.
7 – Seat Design: Optimized seat geometry reduces seating/unseating torque and wear on contact surfaces.

Direct Mounting As Per ISO 5211

Our Coverage

You may also like