Equipment/ functions - Process Valve Solutions
Equipment/ functions - Process Valve Solutions
Equipment/ functions - Process Valve Solutions
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Explosion protection<br />
Lifetime<br />
Part-turn actuators for<br />
open-close duty SG/ SGExC<br />
One cycle is an operation from end<br />
position CLOSED to end position<br />
OPEN and vice versa for a swing<br />
angle of 90°.<br />
Type Cycles<br />
SG/ SGExC 05.1 20 000<br />
SG/ SGExC 07.1 20 000<br />
SG/ SGExC 10.1 15 000<br />
SG/ SGExC 12.1 10 000<br />
Mounting positions<br />
AUMA actuators (with or without integral<br />
controls) can be operated without<br />
restriction in any mounting position.<br />
For the installation of actuators in<br />
potentially hazardous or explosive<br />
areas, special protective measures<br />
are required. These are stipulated in<br />
the European Standards EN 50 014,<br />
50 018 and 50 019. The PTB<br />
(Physikalisch Technische Bundesanstalt,<br />
the German national<br />
test authority) as European<br />
test authority<br />
certifies the conformity<br />
of the equipment<br />
with the mentioned<br />
standards.<br />
The explosion-proof<br />
versions of the AUMA SGExC correspond<br />
to protection class II2G<br />
EEx de IIC T4.<br />
Part-turn actuators for modulating duty SGR<br />
The lifetime in operation hours (h)<br />
depends on the load and the number<br />
of starts. A high starting frequency<br />
will rarely improve the modulating<br />
accuracy. To reach the longest possible<br />
maintenance and fault-free<br />
Type Starts in<br />
million.<br />
min.<br />
Ambient conditions<br />
Certificates of conformity from<br />
national test authorities in other<br />
countries, e.g. CIS are also available.<br />
For the current versions of the<br />
certificates refer to the Internet<br />
under:<br />
www.auma.com (download section).<br />
operation time, the number of starts<br />
per hour chosen should be as low as<br />
permissible for the process. This can<br />
be achieved by setting the modulating<br />
parameters accordingly.<br />
Number of starts per hour for an<br />
expected lifetime based on min.<br />
operation hours 1)<br />
5.000 h 10 000 h 20 000 h<br />
Number of<br />
cycles<br />
max/h<br />
SGR 05.1 2,5 600 300 150 600<br />
SGR 07.1 2,5 600 300 150 600<br />
SGR 10.1 2,5 600 300 150 600<br />
SGR 12.1 2,5 600 300 150 600<br />
1) Based on the permissible torque for modulating duty according to ‘Technical Data SGR’<br />
and the type of duty S4 - 25 %<br />
25