This document provides technical specifications for the Shoogang 0421TCV804 pneumatic actuator. The device is designed with a 1/2" NPT air supply connection and includes specific instrumentation items for damper control.
The actuator features two operational modes: a Main Damper Control and a By-Pass Damper Control. The Main Damper Control operates with a 20 mA signal for stem retraction and 4 mA for stem extension, while the By-Pass Damper Control reverses these signals. Both modes indicate a stem extended position upon loss of signal.
| Air Supply Connection | 1/2" NPT |
|---|---|
| Main Damper Control Signal (Retract) | 20 mA |
| Main Damper Control Signal (Extend) | 4 mA |
| Main Damper Control Loss of Signal | STEM EXTENDED |
| By-Pass Damper Control Signal (Retract) | 4 mA |
| By-Pass Damper Control Signal (Extend) | 20 mA |
| By-Pass Damper Control Loss of Signal | STEM RETRACTED |
| Mass (Main) | St kg |
| Mass (By-Pass) | 51 kg |
The air supply connection is 1/2" NPT.
A 4 mA signal indicates the stem is extended.
The stem extends upon loss of signal.
The mass of the by-pass damper control unit is 51 kg.