5
MOUNTING TO A VALVE
RIFT® 200 Electric Actuators have mounng opons that conform to ISO:5211 which enables them, where
applicable, to be direct mounted to similarly compliant valves, thus eliminang the cost and addional height
of a tradional box secon (or similar) ‘mounng kit’. ISO:5211 introduced a system to ensure the actuator
drive is concentric and in vercal alignment with the stem or sha of the valve to be driven, and the actuator
is solidly mounted to the valve. All aspects of valve and actuator mounng are crical to the correct
performance of the assembled valve and actuator.
The RIFT® 200 has a base ange, giving an ISO:5211 mounng opon as follows;
The female metric threads in the base anges are zinc plated steel; these are specialist xings designed for
use in plasc injected molded components and are inserted into the ange during the injecon molding
process.
The anges are changed by removing the 4 x M4 socket countersunk screws, removing the exisng ange
and drive adapter, inserng the other ange and correct drive adapter in the correct orientaon and
replacing the 4 socket countersunk screws. If required, an appropriate bolt can be ed to one of the xings
and used to assist in levering the mounng ange from the base.
Ensure that the height of the stem or sha to be driven, from the valve’s ISO:5211 plaorm to the
top of the stem or sha, does not exceed the maximum depth of the female drive output to be used
as this will push the actuator’s internal components upwards which will cause irreparable damage.
Care must be taken when selecng the bolts to secure the valve to the actuator ange to ensure that
the bolts do not reach the solid boom of the threaded insert before the bolt is ght against the valve
ange.
Ensure that the valve is in the same posion as the actuator when assembling the valve to the actuator;
otherwise the opposite posion in the valve to the signal sent to the actuator will result. To assist with
this, the closed symbol is molded into the actuator lid to ensure that the closed posion/orientaon is
known, and the local visual indicator LEDs will indicate the current posion of the actuator.
Where the valve is supplied with a lock washer on the stem nut (the nut that compresses either the
Belville washers, or the stem packing), ensure this lock washer is sll ed when
assembling the valve to the actuator, and use washers if necessary to ensure that the lock washer
cannot slide up when assembled and thus become ineecve. This lock washer prevents the stem nut
slackening o during operaon.
ISO:5211 Large Flange: F07, F10
Dimensions ‘F’ | PCD | No of holes | Metric female thread size? Max
thread depth
F07: 70 | 4 | M8 | 12
F10: 102 | 4 | M10 |
14
Female square drive (mm) Standard | Opon 17 | 22
Maximum depth of female drive output 17mm drive, max
19mm deep
22mmdrive,max
24mm deep
?