Connection
5.3 Restrictors
SIPART PS2 with and without HART
Operating Instructions, 10/2013, A5E00074631-11
99
● Reduce the air output to achieve actuating times of T > 1.5 s for small actuators. Use
restrictors Y1
① and Y2 ② for this purpose.
● 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
setting.
Restrictor Y2, only in the version for double-acting actuators
Hexagon socket-head screw 2.5 mm
Figure 5-27 Restrictors
Pneumatic connection in the flameproof enclosure (Page 95)
Sequence of automatic initialization (Page 117)