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STAINLESS STEEL ACTUATOR  Simple acting

Simple acting

GS15-GS240

Simple acting

GS360-GS1920

FAIL TO CLOSE: SAFETY FIRST.

The canted Scotch Yoke Spring Return Actuator sealing torque increase ensures a positive valve closing with its final push.Simple acting (spring return) actuators are available also in fail to open version.

  • GS_INOX_FUNZIONAMENTO

    Simple acting operation cycle: 1. open position valve 2. closed position valve

TYPICAL AIR CONNECTION SCHEMA

The pistons of standard GS actuators are mounted as shown above. Although spring force is diminished, the geometry of the mechanism provides a grater torque at the end of the spring stroke. When the actuator is in the valve open position, and the springs are fully compressed, the end of travel stops can be fine adjusted. Spring Return Fail to Open actuators are required when in case of the pressurised air or electrical power supply are off the valve should be automatically opened.In the fail to open actuators the pistons are inserted into the cylinder like the Double acting version, and due to the spring force the actuator is Normally Open.Attention. Normal torque and torque performances in Spring Return Fail to Open version, due to its construction, are different from the Spring Return Fail to Close standard version.Caution. In order to avoid suction of dust or dirt inside of the actuator chamebrs during the spring action, install a filter on the port 2. The port 4 is in connection with the intermediate chamber and when pressurised the drive shaft rotate counter clockwise to open. In accordance with the international standard ISO 5599-2 the actuator air ports connection position, location, orientation and form shall be clearly identified and market with the numerate 2 and 4.

  • GS_CONNECTION
Type Dn Iso Flange Square H11 Shaft Depth Datasheet
GS15 DN40 F03 9 10,2
GS30 DN50 F03/F05 11 12,1
GS60 DN63 F05/F07 14 16,3
GS120 DN80 F05/F07 17 19,3
GS240 DN100 F07/F10 22 24,3
GS360* DN115 F10/F12 27 29,5
GS480* DN125 F12/F16 36 38,5
F14
GS720* DN145 F12 36 38,5
F14
GS960* DN160 F12/F16 46 48,5
GS1920* DN208 F14 46 49,5
F16

*Sizes available also in carbon steel, coating on demand.

Actuatech S.p.a.2019-05-25
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