8211834 FESTO | Alldatasheet
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Part number: 8211834 General operating condition Data sheet Feature Value Size of valve actuator 3500 Flange hole pattern F16 Swivel angle 90 deg End-position adjusting range at 0° -5 deg ... 5 deg End-position adjusting range at nominal swivel angle -5 deg ... 5 deg Depth shaft connection 50 mm Standard connection for valve ISO 5211 Mounting position Any Mode of operation Double-acting Structural design Gear rack/pinion Closing direction Clockwise closing Symbol 00991265 Valve connection conforms to standard VDI/VDE 3845 (NAMUR) Connection point for positioner and position sensor conforms to standard VDI/VDE 3845 size AA 3 Safety function The safety function consists of the actuator switching to the defined safety switching position. This switching movement is achieved by pressurizing the corresponding pressure chamber with compressed air. The value of the torque generated depends on the p Safety integrity level (SIL) Up to SIL 2 low demand mode up to SIL 3 in a redundant architecture Certified for safety function to ISO 13849 and IEC 61508 (SIL) Product can be used in safety-related parts of control systems up to SIL 2, low demand up to SIL 3 in a redundant architecture Burst pressure 20.43 bar Operating pressure 2 bar ... 6.8 bar Operating pressure 29 psi ... 98.6 psi Nominal operating pressure 0.55 MPa Nominal operating pressure 5.5 bar Nominal operating pressure 79.75 psi CE marking (see declaration of conformity) as per EU explosion protection directive (ATEX) UKCA marking (see declaration of conformity) acc. to UK EX instructions Explosion protection certification outside the EU EPL Db (GB) EPL Gb (GB) 12/29/25 - Subject to change - Festo SE & Co. KG 1/2
Explosion prevention and protection Zone 1 (ATEX) Zone 1 (UKEX) Zone 2 (ATEX) Zone 21 (ATEX) Zone 21 (UKEX) Zone 22 (ATEX) Certificate issuing authority German Technical Control Board (TÜV) Rheinland 968/V 2959.00/2025 ATEX category gas II 2G ATEX category for dust II 2D Type of ignition protection for gas Ex h IIC T6 Gb Type of (ignition) protection for dust Ex h IIIC T85°C Db Explosive ambient temperature -20°C <= Ta <= +80°C Operating medium Compressed air as per ISO 8573-1:2010 [7:3:4] Information on operating and pilot media Dew point min. 10 °C below the ambient temperature and temperature of medium Operation with oil lubrication possible (required for further use) LABS (PWIS) conformity VDMA24364 zone III Storage temperature -20 °C ... 60 °C Ambient temperature -20 °C ... 80 °C Torque at nominal operating pressure and 0° swivel angle 3229 Nm Torque at nominal operating pressure and 90° swivel angle 3229 Nm Note about the torque The actuator's operating torque must not be higher than the maximum permissible torque listed in ISO 5211, based on the size of the mounting flange and the coupling. Air consumption at 6 bar per cycle 0°-nominal swivel angle-0° 314.37 l Product weight 75500 g Shaft connection T46 Pneumatic connection G1/2 Note on materials RoHS-compliant Material of sub-base Wrought aluminum alloy, anodized Cover material Die cast aluminum, painted Seals material NBR Housing material Aluminum, anodized Material number of housing EN AW-6005 Material of piston Die-cast aluminum Material of bearing POM Material of screws High-alloy stainless steel Shaft material Steel, nickel-plated 12/29/25 - Subject to change - Festo SE & Co. KG 2/2