DFG085-DA-M-P Pneumatic Butterfly Valve Structural Features

ISO5211 top flange with square shaft suitable for direct actuator mounting

Anti-blowout stem design ensures safety during field use

Dust ring prevents moisture infiltration into the valve shaft area

Multi-standard positioning holes compatible with EN1092 PN10, PN16, ASME B16.5 CLASS150, JIS B2239 10K, 16K, BS 10 Table D, Table E

Back-seated seat design allows full pressure and full vacuum service

Disc-to-shaft connection without pins or bolts

No flange gasket required

No risk of valve damage when installed in closed position

Bubble-tight shut-off at full pressure rating

Streamlined disc design provides high flow capacity with sufficient strength

O-ring sealed drain plug prevents leakage at bottom stem

DFG085-DA-M-P Pneumatic Butterfly Valve Connection Standards

Nominal diameter DN50-DN2000

Working pressure 16bar for DN50-DN300, 10bar for DN350-DN2000

Flange standards DN50-DN300: EN1092 PN10/16, ASME B16.5 Class150, JIS B2239 10K/16K, BS10 Table D/E

DN350-DN2000: EN1092 PN10/16, ASME B16.5 Class150, BS10 Table D/E

Face-to-face dimensions EN558 Series 20, API 609 Table 1

Top flange ISO 5211

Seal test ISO 5208 Category 3, API 598 Table 5

Temperature range -40°C to +180°C (depending on pressure, medium and material)

Actuation options Handwheel, gearbox, pneumatic actuator, electric actuator