Avannto Flow Controls Manufacturing Co.,Ltd China
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PTFE-lined butterfly valve
PTFE-lined shut-off and control valves are designed for use in chemically aggressive leaches and acids. The minimum 3 mm thick lining comprising virgin PTFE ensures optimal permeation protection. In conjunction with the double shaft seal, this series offers maximum operational safety, even with corrosive and toxic media.
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: Ductile Iron, Carbon Steel,Stainless Steel Disk Materials: Stainless Steel, PTFE/SS, PFA/SS, Hastelloy, Titanium Stem Materials: Stainless Steel Seat Materials: PTFE Applications: Highly Corrosive, Toxic Media 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 – DN600 Face-to-face: EN 558 Series 20 ISO 5752 Series 20 API 609 Table 2 Flange accommodation: EN 1092 PN 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) Working standard: EN 593 Temperature range: -30 °C to + 180°C (depending on pressure, medium and material) Max. Operating pressure: max. 16 bar
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