{"id":1041,"date":"2024-03-19T05:26:04","date_gmt":"2024-03-19T05:26:04","guid":{"rendered":"https:\/\/stvvalve.com\/?p=1041"},"modified":"2024-03-19T05:26:04","modified_gmt":"2024-03-19T05:26:04","slug":"iso-5211-for-industrial-valves","status":"publish","type":"post","link":"https:\/\/stvvalve.com\/es\/iso-5211-for-industrial-valves\/","title":{"rendered":"ISO 5211 For Industrial Valves"},"content":{"rendered":"

ISO 5211 is an international standard that specifies the flange dimensions, driving component dimensions, and torque reference values for part-turn actuators that connect to industrial valves like butterfly and ball valves. The standard also defines the different types of drive inserts used for these actuators. This article concentrates primarily on ISO 5211 standard and the other relevant ISO standards used for ball valves and butterfly valves.<\/p>\n

ISO 5211 standard<\/h2>\n

Modern valve designs are compliant with an ISO mounting interface. The actuator can be mounted directly to the valve without a bracket and drive log, thus saving time, hassle, and money. The highlight of following a standard like ISO 5211 is that the user can buy the parts from any manufacturer and then mix and match the valve and actuator and replace a single part if needed.<\/p>\n

ISO 5211 is an international standard that specifies requirements for the attachment of part-turn actuators (with or without gearboxes) to industrial valves. ISO 5211 specifies the following parameters:<\/p>\n

    \n
  1. The flange dimensions necessary for attaching part-turn actuators to industrial valves or intermediate supports.<\/li>\n
  2. The driving component dimensions of part-turn actuators necessary to attach them to the driven components.<\/li>\n
  3. The reference values of torques for interfaces and couplings.<\/li>\n<\/ol>\n

    Flange dimensions<\/h2>\n

    Flanges for part-turn actuators (Figure 2 labeled 1) comply with the dimensions shown in Figure 2 and Table 1. The flanges can be attached by screws, studs, or bolts. Holes for the studs, screws, or bolts are equally spaced apart and positioned off-center (see Figure 3 and Table 3), and conform to the requirements of\u00a0ISO 273<\/a>. ISO 273 specifies the clearance hole diameters for general purpose applications. These values are from bearing area calculations connected to ISO bolt and nut product standards.<\/p>\n

    \"FlangeFigure 2: Flange dimensions of a part-turn actuator<\/p>\n<\/div>\n

    Table 1: Flange dimensions (in mm)<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Flange type<\/td>\nd1<\/td>\nd2<\/td>\nd3<\/td>\nd4<\/td>\nh1max<\/td>\nh2min<\/td>\nNo. of bolts\/studs<\/td>\n<\/tr>\n
    F03<\/td>\n46<\/td>\n25<\/td>\n36<\/td>\nM5<\/td>\n3<\/td>\n8<\/td>\n4<\/td>\n<\/tr>\n
    F04<\/td>\n54<\/td>\n30<\/td>\n42<\/td>\nM5<\/td>\n3<\/td>\n8<\/td>\n4<\/td>\n<\/tr>\n
    F05<\/td>\n65<\/td>\n35<\/td>\n50<\/td>\nM6<\/td>\n3<\/td>\n9<\/td>\n4<\/td>\n<\/tr>\n
    F07<\/td>\n90<\/td>\n55<\/td>\n70<\/td>\nM8<\/td>\n3<\/td>\n12<\/td>\n4<\/td>\n<\/tr>\n
    F10<\/td>\n125<\/td>\n70<\/td>\n102<\/td>\nM10<\/td>\n3<\/td>\n15<\/td>\n4<\/td>\n<\/tr>\n
    F12<\/td>\n150<\/td>\n85<\/td>\n125<\/td>\nM12<\/td>\n3<\/td>\n18<\/td>\n4<\/td>\n<\/tr>\n
    F14<\/td>\n175<\/td>\n100<\/td>\n140<\/td>\nM16<\/td>\n4<\/td>\n24<\/td>\n4<\/td>\n<\/tr>\n
    F16<\/td>\n210<\/td>\n130<\/td>\n165<\/td>\nM20<\/td>\n5<\/td>\n30<\/td>\n4<\/td>\n<\/tr>\n
    F25<\/td>\n300<\/td>\n200<\/td>\n254<\/td>\nM16<\/td>\n5<\/td>\n24<\/td>\n8<\/td>\n<\/tr>\n
    F30<\/td>\n350<\/td>\n230<\/td>\n298<\/td>\nM20<\/td>\n5<\/td>\n30<\/td>\n8<\/td>\n<\/tr>\n
    F35<\/td>\n415<\/td>\n260<\/td>\n356<\/td>\nM30<\/td>\n5<\/td>\n45<\/td>\n8<\/td>\n<\/tr>\n
    F40<\/td>\n475<\/td>\n300<\/td>\n406<\/td>\nM36<\/td>\n8<\/td>\n54<\/td>\n8<\/td>\n<\/tr>\n
    F48<\/td>\n560<\/td>\n370<\/td>\n483<\/td>\nM36<\/td>\n8<\/td>\n54<\/td>\n12<\/td>\n<\/tr>\n
    F60<\/td>\n686<\/td>\n470<\/td>\n603<\/td>\nM36<\/td>\n8<\/td>\n54<\/td>\n20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \"PositionsFigure 3: Positions of holes<\/p>\n<\/div>\n

    Table 2: Position of holes<\/p>\n\n\n\n\n\n\n\n
    Flange type<\/strong><\/td>\n\u237a\/2<\/strong><\/td>\n<\/tr>\n
    F03 to F16<\/strong><\/td>\n45\u00b0<\/strong><\/td>\n<\/tr>\n
    F25 to F40<\/strong><\/td>\n22.5\u00b0<\/strong><\/td>\n<\/tr>\n
    F48<\/strong><\/td>\n15\u00b0<\/strong><\/td>\n<\/tr>\n
    F60<\/strong><\/td>\n9\u00b0<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Drive inserts<\/h2>\n

    Drive inserts allow the actuators to directly mount to the valve in accordance with ISO 5211. Direct mounting eliminates the need for a coupling-type mounting kit and significantly cuts the valve\/actuator assembly cost. ISO 5211 covers parallel and diagonal square drives, flat head drives, and single and two key drives. These drive inserts are on factory-built actuators or come as separate units. Also, these inserts are easily replaceable at the distributor or end-user level.<\/p>\n

    \"DriveFigure 4: Drive inserts for connecting ISO 5211 actuator to butterfly valves: actuator (A), drive insert (B), butterfly valve (C)<\/p>\n<\/div>\n

    ISO 5211 torque chart<\/h2>\n

    As per the ISO 5211 standard, the maximum torque transmitted through the mounting flange of a butterfly or ball valve should comply with the values listed in Table 3. The values specified in Table 3 are based on bolts in tension at a stress of 290 MPa and a coefficient of friction between the mounting interface of 0.2. Any variation in these defined parameters can lead to variations in the values of torque transmitted. Hence, while selecting a flange type for a particular application, the additional torque that inertia or other factors may generate should be considered.<\/p>\n

    Table 3: Maximum flange torque values as per ISO 5211 standard<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Flange type<\/strong><\/td>\nMaximum flange torque (in Nm)<\/strong><\/td>\n<\/tr>\n
    F03<\/strong><\/td>\n32<\/strong><\/td>\n<\/tr>\n
    F04<\/strong><\/td>\n63<\/strong><\/td>\n<\/tr>\n
    F05<\/strong><\/td>\n125<\/strong><\/td>\n<\/tr>\n
    F07<\/strong><\/td>\n250<\/strong><\/td>\n<\/tr>\n
    F10<\/strong><\/td>\n500<\/strong><\/td>\n<\/tr>\n
    F12<\/strong><\/td>\n1000<\/strong><\/td>\n<\/tr>\n
    F14<\/strong><\/td>\n2000<\/strong><\/td>\n<\/tr>\n
    F16<\/strong><\/td>\n4000<\/strong><\/td>\n<\/tr>\n
    F25<\/strong><\/td>\n8000<\/strong><\/td>\n<\/tr>\n
    F30<\/strong><\/td>\n16000<\/strong><\/td>\n<\/tr>\n
    F35<\/strong><\/td>\n32000<\/strong><\/td>\n<\/tr>\n
    F40<\/strong><\/td>\n63000<\/strong><\/td>\n<\/tr>\n
    F48<\/strong><\/td>\n125000<\/strong><\/td>\n<\/tr>\n
    F60<\/strong><\/td>\n250000<\/strong><\/td>\n<\/tr>\n
    F80<\/strong><\/td>\n500000<\/strong><\/td>\n<\/tr>\n
    F100<\/strong><\/td>\n1000000<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Designation<\/h2>\n

    Part-turn valve actuators that comply with ISO 5211 standard<\/a> can be designated as shown in Table 4.<\/p>\n

    Table 4: ISO 5211 valve designation<\/p>\n\n\n\n\n
    Flange designation<\/strong><\/td>\nSpigot identification<\/strong><\/td>\nDrive identification<\/strong><\/td>\nDrive dimensions (in mm)<\/strong><\/td>\n<\/tr>\n
    Flange types given in Table 1<\/td>\nY:<\/strong>\u00a0with spigot <\/p>\n

    N:<\/strong>\u00a0without spigot<\/td>\n

    		V:<\/strong>\u00a0Single key drive <\/p>\n

    W:<\/strong>\u00a0Two key drive<\/p>\n

    L:<\/strong>\u00a0Parallel square drive<\/p>\n

    D:<\/strong>\u00a0Diagonal square drive<\/p>\n

    H:<\/strong>\u00a0Flat head drive<\/td>\n

    		The actual dimensions of the drive in mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Example<\/h4>\n

    Consider a part-turn actuator with the following designation:<\/p>\n

    EN 150 5211 – F07 – Y – V – 22<\/p>\n

    The designation can be decoded as follows:<\/p>\n