Flowserve MX FOUNDATION Fieldbus Field Unit - Manual (Page 10)

MX/QX FOUNdaTION Fieldbus Field Unit FCd LMENIM2330-01 – 08/11
10
Figure 2.2 - QX-05 Actuator
2.2.1 MX/QX Electric Actuators
The MX/QX actuators control the opening and closing of valves. The MX is a multi-turn valve while
the QX is a quarter-turn valve actuator. Both actuators are actuator designed for operation of ON-OFF
and modulating valve applications.
The MX/QX features include the following:
• Non-intrusive setup
• Separately sealed terminal compartment
• Unique absolute encoder for valve position sensing (no battery required)
• 32-character LCD for indication and calibration
• Sophisticated electronic control, monitoring, and diagnostic capabilities with LimiGard™
technology.
NOTE: Recommended storage procedures for the MX are detailed in Bulletin LMENIM2306, MX
Maintenance and Spare Parts Manual. QX procedures are detailed in Bulletin LMENIM3306, QX
Maintenance and Spare Parts Manual. Failure to comply with recommended procedures will void the
warranty. For longer-term storage, contact Limitorque for procedure and recommendations.
13
12
3
1
4
6
10
2
7
5
9
9
8
15
9
OPTIONAL
3
14
11
3
Piece Description
1 Handwheel
2 Declutch Lever (QX-05)
3 Oil Fill
4 Controls Cover
5 LCD
6 Control Knob
7 Ground Lug
8 Baseplate
9 Conduit Entry
10 Terminal Compartment
11 Motor
12 Certification Nameplate
13 Tag Nameplate
14 Oil Plug
15 Stem Nut Stops
Table 2.2 – QX Actuator Components