
User Instructions
Part Number IOM – 87376-7 July 2016, Rev 1.
1
Section 1: Introduction
NOTE:
Also refer to the operating manual for Bettis RTS FQ Fail-Safe Quarter-Turn Series electric actua-
tors.
Bettis RTS FQ Fail-Safe Quarter-Turn electric actuators are designed to operate appropriate
fittings when a fail-safe functionality is required.
Appropriate fittings are all kinds of fittings that require a 90
o
movement to operate (butterfly
valves, ball valves, taps in general, etc.).
In the event of a power failure or if the fail-safe function is triggered deliberately, the actuator
shifts the fitting to the fail-safe position, using the built-in energy storage device to do so.
Figure 1
Bettis RTS FQ Fail-Safe Quarter-Turn Actuator
Summary of Contents for RTS FQ
Page 2: ...User Instructions Part Number IOM 87376 7 July 2016 Rev 1 0 ii ...
Page 6: ...User Instructions Part Number IOM 87376 7 July 2016 Rev 1 0 iv ...
Page 7: ...User Instructions Part Number IOM 87376 7 July 2016 Rev 1 v ...
Page 89: ...User Instructions Part Number IOM 87376 7 July 2016 Rev 1 0 82 ...