Double Off-Set Disc Wafer Type Butterfly Valve
Double Off-Set Disc Wafer Type Butterfly Valve - Image 2
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Double Off-Set Disc Wafer Type Butterfly Valve

aira Euro automation is a Manufacturing company of Pneumatic Actuator Operated Double Eccentric off set disc wafer type butterfly valve in India.

Specification Details
Size Range 2.1/2″ To 48″ (65 MM To 1200 MM)
Temperature Range -25°C To 220°C
Working Pressure 150# / PN 10 / PN 16 / PN 25 / PN 40

“Aira” Offers a Double-offset wafer type butterfly valve ( resilient-seated ), available with long or short face–to–face lengths for use in most common flow control applications. Long service life, as the media does not come into contact with the bearing, and due to the wear-resistant, corrosion, and infiltration-proof seat with weld overlay. Suitable for use in water distribution, water treatment, pre-treated wastewater, dams, power plants, industry, and pressure management.
<h3>Specification & Standard</h3>

Specification Details
Design & Manufacturer API 609 CATEGORY “B” / MSS SP – 68 BS EN – 593
Valve Face To Face Dimension API 609 CATEGORY “B”/ ISO 5752 MSS SP – 68 / BS EN – 558
Flange Standard Conformity ASME / ANSI B 16.5 Class 150, ASME / ANSI B 16.47 Series “A” & “B” Class 150 / DIN 1092 – 1
Inspection & Testing API 598 / BS EN 12266 – 1 / AWWA C 504 / AWWA C 516 / IS 13095
Pressure Temperature Rating ASME B 16.34
Top Flange Drilling Bolt Hole ISO 5211
Stem Dimension Square Drive To ISO 5211
Seat Leakage Class Class VI As Per ANSI B 16.104 / FCI-70-2, ISO – 5208
End Connection Wafer Type – D/F- AWWA C 504, D/F – IS 13095 – 150#, 300#, 600#, PN-10, PN-16, PN-20, PN-25
Certification Design CE Approved, SIL3 Approved, Fire Safe Design Approved
Size Range 2.1/2″ To 48″ ( 65 MM To 1200 MM )
Temperature Range NBR: -10°C To +90°C, EPDM: -20°C To +120°C, VITON: 0°C To +220°C, PTFE: -25°C To +180°C
Pressure Class 150#, 300#, 600#, PN-10, PN-16, PN-20, PN-25
Media Water, Oil, Steam, Air, Gas, Chemical & Vacuum
Leakage Class Class VI As Per ANSI B16.104
Body Material CAST IRON, DUCTILE IRON, S.G IRON, WCB, CF8, CF8M, CA 15, WCC, LCB, WC6, WC9, WC12, HAST ALLOY C, NICKEL ALUMINIUM BRONZE, DUPLEX 4A, 5A, 6D, SUPER DUPLEX, ALLOY 20
Disc Material CAST IRON, DUCTILE IRON, S.G IRON, WCB, CF8, CF8M, CA 15, WCC, LCB, WC6, WC9, WC12, HAST ALLOY C, NICKEL ALUMINIUM BRONZE, DUPLEX 4A, 5A, 6D, SUPER DUPLEX, ALLOY 20
Seat Material EPDM / NBR / VITON
Design Standard API 609 / IS : 13095 / BSEN 593 / AWWA C 504 / AWWA C 516
Flange Drilling ASME B16.5 / 16.47 Class 150
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Features & Benefits

The Aira Double Offset Disc Wafer Type Butterfly Valve is designed for precision and reliability in various industrial applications.

1 – Double Offset Design: Provides enhanced sealing performance and reduced wear, ensuring a tight shut-off and long service life.

2 – Disc Configuration: Features a unique disc design that minimizes friction and torque requirements, improving operational efficiency.

3 – Wafer Style: Compact and lightweight design for easy installation between flanges and space-saving in piping systems.

4 – Durable Construction: Constructed from high-quality materials to withstand harsh conditions and high pressures.

5 – Versatile Use: Suitable for applications in water treatment, chemical processing, HVAC systems, and more.

Dimension Table

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