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PTFE Sleeve-Wafer Type butterfly valve -AOBV11
PTFE sleeve consists of PTFE liner and silicone rubber or FKM frame. PTFE sleeve hardness is higher than EPDM or NBR in order to make entire sleeve more resilient, PTFE sleeve be reinforced by silicone rubber or FKM frame. PTFE sleeve resists chemically aggressive leaches and acids,silicone rubber or FKM frame offer good resilience for sealing disk.
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Product description
PTFE sleeve butterfly valves are designed for use in chemically aggressive leaches and acids. PTFE sleeve reinforced by silicone rubber or FKM, which offer good elastic deformation for sealing.
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
·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: Cast Iron, Ductile Iron, Stainless Steel
Disk Materials: Aluminum Bronze, Stainless Steel, Hastelloy,
Stem Materials: Stainless Steel, Monel
Seat Materials: PTFE
Applications: Metallurgy, Power Generation, Chemical Process, Marine, Oil & Gas, Pulp & Paper, Bulk Solids, Mining, Food & Beverage
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 600
Face-to-face:
EN 558 Series 20
ISO 5752 Series 20
API 609 Table 1
Flange accommodation:
EN 1092 PN 6/10/16
ASME Class 150
AS 4087 PN 16
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:
-10 °C to + 180°C (depending on pressure, medium and material)
Max. Operating pressure:
max. 16 bar
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