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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

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