2
Bettis Q-Series
Installation Guide
February 2017 DOC.IG.BQC44.1 Rev. 1
2
1
Control Module Type Label =
QC44..P1.. = Intrinsically Safe
Actuator Type Label =
QS xxxx = Single acting (Spring Return)
QD xxxx = Double acting
Fig. 2.2 Identification
1 Applicable Control modules:
QC44 - I.S. - Intrinsically Safe
Note:
This QC44 control module can be equipped with
one or two pilot valves:
* One pilot valve is default and suitable for normal
operation of double acting or spring return
actuators.
* Two pilot valves are required for Fail in Last
Position function on double acting actuators.
The enclosures of both Weather Proof and Explosion
Proof / Flame proof modules, have a IP66 or NEMA
4X, ingress protected rating.
Fig. 2.1 Check proper mounting before connecting air
supply and electrical wiring.
2 Before starting
* Actuator must be isolated both pneumatically
and electrically before any (dis)assembly is
begun.
* Installation, adjustment, putting into service,
use, assembly, disassembly and maintenance of
the control module must be done by qualified
personnel.
* Be sure that the actuator is correctly mounted
before connecting air supply and electrical
wiring (see Installation & Operation Manual
Bettis Q-Series Valve Actuator, DOC.IOM.Q.E)
* Check the module label for the right execution
(see figure 2.2)
* Check the type of actuator: single or double
acting (see figure 2.2).
* For mechanical installation of the module see
installation instruction leaflet DOC.BQC4.MTI.1,
as shipped with the module.
2.1 Intended use
The Bettis Q-Series actuator is an integrated
concept for the automation of quarter turn valves,
dampers or other quarter turn applications. It
consists of two basic parts (see figure 2.1):
1. Pneumatic actuator
2. Control Module
The control module allows operation of the
actuator and supplies position feedback signals.
