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BUTTERFLY VALVES
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GATE VALVES
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ACTUATORS
High performance（triple eccentric)butterfly valve-AOBV31
High operating pressures and extreme temperatures - wherever other valves reach their physical limits, this series is the ideal solution. The double eccentric design of the valve disc, high-quality materials and outstanding workmanship ensure safety even in extreme conditions of use. Different sealing systems enable an optimal solution for the respective field of application.
Highlight:
·All AVANNTO valves are pressure tested to 110% of rated pressure to assure bubble tight shutoff.
·All AVANNTO butterfly valves are pin-less design
·Chemical resistant, weather resistant, abrasion and impact resistant coating
·Internal disc-to-stem connection
·ISO 5211 international compatibility
·Direct mount all AVANNTO actuators including handles, gear operators, pneumatic and electric actuators
Specifications:
Body Materials: Stainless Steel
Disk Materials: Stainless Steel
Stem Materials: Stainless Steel
Seat Materials: Inconel® 718
Applications: Metallurgy, Power Generation, Chemical Process, Oil & Gas, Pulp & Paper, Bulk Solids, Mining, High Pressure, High Temperature, Critical Service
Material availability depends on valve size & series. Other materials are available. Please consult to us or your local AVANNTO representative for your specific condition.
Nominal diameter:
DN 50 - DN 300
Face-to-face:
EN 558 Series 20
ISO 5752 Series 20
API 609 Table 1
Flange accommodation:
EN 1092 PN 10/16/25/40 (up to DN 150)
EN 1092 PN 10/16/25 (DN 200 - DN 300)
ASME Class 150 /300
Flange Surface Design:
EN 1092 Form A /B
ASME RF, FF
Top flange:
EN ISO 5211
Tightness check:
EN 12266 (Leakage rate A)
ISO 5208, Category 3
Working standard:
EN 593
Temperature range:
-40 °C to + 450°C (depending on pressure, medium and material)
Max. Operating pressure:
max. 40 bar
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