Flowserve Apex 5000 Positioner - Manual

© 2011, Flowserve Corporation, Provo, UT
B00062a4 (AC-53 MFG) 03/11
Apex 5000 Positioner
Installation, Operation and Maintenance Instructions
CONTROLS
Accord Controls 765 South 100 East Phone: 801 373 4576
A Unit of Flowserve Corporation Provo, Utah 84606-6160 Facsimile: 801 489 2591
www.accord-controls.com
Page 1 of 8
Principles of Operation:
The Apex 5000 positioner causes rotation (or linear
movement) of valve actuator in proportion to an input
signal. This signal may take the form of pneumatic
pressure (Model 5000) or electric current (Models
5100, 5200, 5300, 5400 and 5600). Supply pressure is
directed to the actuator through a precision spool
valve. As input pressure is varied, the balance beam
shifts away from its neutral position. The spool also
shifts and a differential pressure is created across the
actuator causing rotation (of linear movement).
Rotation is fed back through the positioner shaft and
cam. Cam rotation causes rotation of both follower arm
and feedback arm about their respective pivot pins.
Rotation of feedback arm changes compression in the
spring which forces the balance beam and spool back
to their neutral positions. This shuts off the flow of air
to the actuator and rotation stops.
Installation:
The Apex 5000 positioner can be installed on rotary
and linear actuators. Actuators can be either double
acting or spring return. Positioners can be set up for
rotation in either direction (direct or reverse acting).
Supply Air Requirements:
Air pressure must be
limited to 120 psi for supply and 50 psi for instrument
signal to avoid damage to the positioner. Supply air
must be clean, dry, and oil free instrument quality air in
accordance with ISA S7.3 specifications (dew point
>18 degrees below ambient temperature, particle size
<5 microns, oil content <1ppm).
Mounting:
The following instructions apply to rotary actuators
only. Linear applications require special mounting and coupling.
1. Mount bracket to actuator. Tighten bolts finger tight only at
this time.
2. Install coupler (if required) on actuator shaft making sure
it is centered.
3. Verify that orientation of actuator and coupler flats matches
positioner shaft flats. If necessary, rotate the cam before
installing positioner (see “Cam Installation”).
4. Install positioner onto bracket. Make sure positioner shaft
and coupler are engaged and centered. Tighten bolts finger
tight only at this time.
Pneumatic Connections:
The supply and both output ports
are female 1/4" NPT. The instrument port is female 1/8"
NPT. All positioners are supplied with either gauges or pipe
plugs in the gauge ports. All connections require user-
supplied tubing fittings. Caution: Do not use Teflon tape as
a pipe thread sealant. Use only a liquid or paste non-
hardening pipe sealant on the threads.
5. Connect positioner ports 1 and 2 to actuator. Port 2 is
always
connected to the actuator port used to drive
actuator away from its start or fail position (the factory cam
setting is full clockwise at minimum input). Port 1 is
connected to the opposite port or may be plugged for
spring return actuators. Note: For fail counterclockwise
applications, the cam must be flipped over so the “R” side
is up (see “Cam Installation”).
6. Connect supply air to the port marked “S”.
7. Connect instrument signal air to the port marked “I” for
model 5000. For models 5100, 5200 or 5400, connect 4-20
mA and(-). For intrinsically safe applications (Model 5400
only), see Figure 1 for barrier requirements and
schematics. The “I/P” is factory calibrated and should not
require adjustment . See “I/P Module Calibration” if
adjustments are necessary.
8. Stroke actuator/valve two or three times to align positioner,
coupler and actuator. With 50% input (actuator/valve at 45
degrees), tighten all mounting bolts. Stroke actuator/valve
again to verify there is no misalignment throughout stroke.
Apex 5000 Positioner