Our products advantages

MANUAL OVERRIDE ACTUATOR  Simple acting

Simple acting

GSV30-GSV960

Simple acting

GSV1920

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.

  • Manual override - Simple acting schema

    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.

  • elettrovalvola_GSV
Type DN (mm) Iso 5211 Flange Square H11 (mm) Shaft Depth (mm) Datasheet
GSV30 DN50 F04 14 16,5
GSV30 DN50 F05/F07 14 16,5
GSV53 DN60 F05/F07 17 19,3
GSV60 DN63 F05/F07 17 19,3
GSV90 DN72 F07/F10 22 24,8
GSV120 DN80 F07/F10 22 24,8
GSV180 DN90 F07/F10 22 24,3
GSV240 DN100 F10/F12 27 29,5
GSV360 DN115 F10/F12 27 29,5
GSV480 DN125 F10/F12 36 38,5
GSV480 F14
GSV720 DN145 F12 36 38,5
GSV720 F14
GSV960 DN160 F12/F16 46 48,5
GSV960 F14
GSV1920 DN208 F16 46 48,5
Actuatech S.p.a.2019-03-25
  1. Home
  2. PRODUCTS
  3. MANUAL OVERRIDE ACTUATOR
  4. Simple acting