This manual describes the installation, operation and maintenance of the 3374 type electric actuator.
This document provides detailed instructions for installing and operating the Samson 3374 electric actuator used in industrial, HVAC and process applications. It includes safety guidance, design principles, technical specifications, wiring diagrams, and procedures for manual and digital valve positioning.
The guide also describes how to attach optional accessories such as valve‑position switches and potentiometers, and outlines calibration steps, troubleshooting tips, and required torque values for mounting hardware. This manual is written in Chinese.
| Rated stroke | 30 mm |
|---|---|
| Power consumption (no valve positioner) | 7.57 W |
| Weight | ≈3.2 kg |
No, the actuator must not be installed upside down.
The mounting bolts should be tightened to a minimum torque of 150 Nm.