Flow Restric)On Func)On Of The Solenoid Valve - Pentair F783E Operating Manual

Procedure
The control head can be posi)oned in two orienta)ons with respect to the actuator, as set by the two moun)ng bolts that
retain the control head onto the actuator or adaptor.
In the case of the F257 rotary actuator, only one posi)on will allow the use of the internal por)ng facility. The other
⇒
posi)on will blank the internal ports.
In the case of a linear actuator choose the orienta)on that is most convenient for the rou)ng of the airlines from the
⇒
control head to the actuator control ports.
The exhaust is fiVed with a silencer on leaving the factory. If required this can be replaced with an exhaust airline by
removing the exhaust silencer from the one-touch fiBng and installing an airline of the correct size. The default size for the
F783E 2.0 is 6mm air tube, see the Product Selec)on Guide on page 9 for op)ons.
NOTE!
Use only airlines of the correct size for the fiBngs installed. If in doubt, the size of the airline is imprinted on the air
⇒
fiBng collet.
Always use a hose cuVer designed for the air tube. Scissors, saws and knives are not suitable hose cuVers.
⇒
Allow sufficient length on airlines to avoid kinking of the tube, or tension on the fiBng. Either will lead to premature
⇒
failure of the airline, and possible injury or product loss.
Always use an airline of the required quality to suit the environment.
⇒
If using an exhaust airline, ensure the length and bore of the airline do not restrict the flow from the actuator to
⇒
exhaust.
10.3. Flow restric on func on of the solenoid valve
Set the flow restric)on func)on of the solenoid valve only when required and aFer comple)on of all necessary
⇒
installa)on.
The flow restric)on screws on the solenoid valve are used to control the rate of flow from the exhaust of the two sides of the
cylinder.
Once the desired flow rate has been set )ghten the locking nuts to prevent the screws moving during opera)on
Fig 10: Se;ng the exhaust flow restrictors
Once the flow screws are set, close the housing in accordance with the instruc)ons in Chapter 8 "Opening and closing the
control head"
Pg 30
F783E / F783E 2.0
00-ISN-191_Rev C
20/01/2018