172-65742MA-01 (CT20/CT20D) 7 Oct 2021
2
Contents
Introduction ....................................................................... 2
Safety Considerations ....................................................... 3
Specifications .................................................................... 5
Configuration ..................................................................... 6
Installation ......................................................................... 8
Maintenance .................................................................... 10
Disassembly/Reassembly ............................................... 11
Troubleshooting ............................................................... 20
TLV EXPRESS LIMITED WARRANTY ........................... 21
Service ............................................................................ 23
Introduction
Thank you for purchasing the TLV electro-pneumatic control valve CT20/CT20D.
This product has been thoroughly inspected before being shipped from the
factory. When the product is delivered, before doing anything else, check the
specifications and external appearance to make sure nothing is out of the
ordinary. Also be sure to read this manual carefully before use and follow the
instructions to be sure of using the product properly.
If detailed instructions for special order specifications or options not contained
in this manual are required, please contact TLV for full details.
This instruction manual is intended for use with the model(s) listed on the
front cover. It is needed not only for installation, but also for subsequent
maintenance, disassembly/reassembly and troubleshooting. Please keep it in
a safe place for future reference.
For details of the actuator and the electro-pneumatic digital positioner, refer to
the respective instruction manuals issued by the manufacturer.