Genebre Building. Av. de Joan Carles I, 46-48
08908 L'Hospitalet de Llobregat. Barcelona (Spain)
genebre@genebre.es - www.genebre.es
GENEBRE S.A.
UPDATE DATE: 07/07/2020 UPDATE NUMBER: 1
10
8.5 Air throttle in pilot valve
In case of low air capacity actuators, there could be oscillation in the equipment,
rendering it inoperative. In such a case, use air throttles in outputs OUT1 and OUT2 of
the pilot valve. There are two available measures that come with the equipment:
Actuator Volume
Output Orifice Diameter
Smaller than 90 cm
3
Ø 0,7
Between 90 ~ 180 cm
3
Ø 1,0
Bigger than 180 cm
3
None
•
Remove the pilot valve.
•
Remove the o-ring, place the throttle and insert the o-ring again. Be careful not to
leave any foreign bodies in the orifice of the throttle.
•
Perform the same operation on both air outputs (OUT 1 and OUT 2).
•
Replace the pilot valve.
If the oscillation persists after performing this operation, please contact Genebre S.A.
9. Maintenance
Even though this equipment requires no maintenance, it is recommended to carry out
regular inspections, which must include:
•
Verifying the mounting / alignment of the actuator and the positioner.
•
Verifying the electrical connection of the signal.
•
Making sure all bolts are present and tightened.
•
Verifying the state of the filters of the air installation to ensure that good quality air
reaches the equipment.
