Siemens SIPART Series Operating Instructions Manual page 101

5.3 Restrictors
● Reduce the air output to achieve actuating times of T > 1.5 s for small actuators. Use
● When turned clockwise, they reduce the air output and finally shut it off.
● In order to set the restrictors, we recommend closing them and then opening slowly.
● In case of double-acting valves, ensure that both restrictors have approximately the same
See also
Pneumatic connection in the flameproof enclosure (Page 95)
Sequence of automatic initialization (Page 117)
SIPART PS2 with and without HART
Operating Instructions, 10/2013, A5E00074631-11
①
restrictors Y1 and Y2
setting.
①
Restrictor Y1
②
Restrictor Y2, only in the version for double-acting actuators
③
Hexagon socket-head screw 2.5 mm
Figure 5-27 Restrictors
②
for this purpose.
Connection
5.3 Restrictors
99