Control valves

Pneumatic actuators

Fast speed version

Fast speed versions are available for PN92xx and PN93xx. The fast speed version is a modified version of the existing PN but it also

need to have the right pipe diameter of the air inlet as an example: DN65 PTSUSS + PN9320 air inlet= " without

Same with 1⁄4” air inlet.

With a positioner, the fastest time to close/open will be limited by itself.

Same with 1⁄4” air inlet SP500.

For fail safe fast speed function, the below lay at could be used to shortcut the positioner.

Time to close

Time to open

Standard

2.5s

5.1s

Fast

1.4s

2.9s

Fast 0.8s 1.5s

Fast 1.4s 2.9s

Actuator

Electric command 1D

+

-

2

1

Pneumatic command

3

Air inlet

TI-P357-30 CH Issue 10

PN9000 Series Pneumatic Actuators for use with Spira-trol

TM

Control Valves

Page 25 of 26

4.2.26