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High performance（triple eccentric)butterfly valve-AOBV31
Features Double offset shaft position Shaft in PTFE lines bearings Easy replaceable seat Standardized actuation flange PTFE seat Benefits Easy actuator automation Low operating torques High reliabililty Excellent sealing properties Suitable for vacuum conditions Easy installation
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Product description
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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