USER INSTRUCTIONS

Automax CENTURA CE Series

Electric Rotary Valve Actuator
FCD AXENIM0037-01 10/05 (Replaces AUTO-37)

Experience In Motion

Installation
Operation
Maintenance

Automax CENTURA CE Series FCD AXENIM0037-01 12/05

Introduction
The Centura electric actuator is a rotary valve actuator with output
torques from 250 to 1,500 in-lbs. It has been designed for NEMA 4, 4X,
7, 9 and can come with a 4-20 mA card for modulating service.

Storage
For short and long term storage refer to short and long term storage
conditions CE Actuator.

Maintenance
Centura Series actuators contain a permanently lubricated, precision
cut, heat treated gear train for long, reliable cycle life. There is no need
to change gear train grease; however, should it become necessary to
refill, use a multi-purpose grease such as DuBois MPG-2.
Permanent split capacitor gearmotors have been equipped with thermal
protectors. After many operations, especially in warm environments,
the motor will heat up. To guard the motor against overheating, the
thermal cut-out blocks power to the motor and maintains this state
until the motors temperature drops to a satisfactory level. This thermal
protection means that the actuator will not move when overheated.
Consideration must be given to the duty cycle requirements of the
actuator.
When replacing the cover, the machined joints must be clean and clear
of any obstructions. The integrity of the explosion-proof rating depends
on the care of these joints.

Installation
1. This section of the instruction sheet applies to the on-off units. For
instructions on Modulating units, please see the ESP3 Electronic
Servo Positioner Instructions.
2. Manually open and close valve to ensure freeness of operation.

a Caution: To prevent ignition of hazardous atmospheres,

keep unit tight while circuits are alive. Disconnect supply
circuit before opening.

3. Be sure valve and Automax actuator rotate in the same direction

and are in the same position (i.e., valve closed, actuator closed). If
not sure, electrically operate the actuator to determine its operating
range, taking note of any explosion safety requirement. The electric
actuators are factory set for 90 degree operation.

a Caution: Use heavy duty brake option K for rubber lined

butterfly valves & dampers or applications that may back
drive the unit.
4. Mount Automax actuator to valve with Automax provided mounting
hardware to ensure proper alignment. Use mounting hardware
that has 11/2 times bolt length engagement. (Do not use the manual
override to align actuator shaft to valve shaft, as this could drive the
actuator out of its operating range).
NOTE: Some valves have manual stops; remove if appropriate or
set actuator to operate within those travel stops).
5. Care should be taken to align valve stem properly with Automax
actuator output shaft (misalignment will cause premature failure of
assembly).
6. To connect power to terminal strip of actuator, remove the cover
and locate the terminal wiring schematic inside the cover.
7. Connect power to terminal strip according to schematic diagram
(power should be fused with a 5 amp slow-blow fuse). The actuator
should be wired and grounded in accordance with Local and
National Electrical Codes.

a Caution: Consult factory when wiring multiple actuators

in series or parallel. Serious damage may result. User must
isolate unused winding.
8. Before replacing cover, actuate valve and check to see if it opens
and closes to preferred positions. If valve does not perform
correctly, adjust cams to set actuator travel properly.
9. Drive actuator to desired open position. The cams are adjusted in
two ways. Simply depress the splined Quick-Set cam against the
spring and rotate to desired location. Or, for very precise applications, turn the screw inside the cam to move the tip into the leaf of
the micro switch.
10. To adjust closed position, repeat step 9 with actuator in desired
closed position.
11. Operate the unit several times and recheck position. If unit is still
out of adjustment, reset the cams by following steps 9 and 10.
12. Installation in hazardous areas requires that the electrical leads be
sealed within 18 inches of the enclosure in accordance with Local
and National Electrical Codes.
13. Open conduit entries must be closed up after installation is
complete using a close-up plug engaging at least five full threads
and approved for use in hazardous locations.

Automax CENTURA CE Series FCD AXENIM0037-01 12/05

14. 60Hz actuator motors may be run on 50 Hz supply. However, the

cycle time increases by 1.2 times and the duty cycle decreases by a
factor of approximately 25%. The rated torque does not change.

Manual Override
The principle of the design is such that when the manual override shaft
is in the up position, the shaft is disconnected from the drive train.
When the shaft is in the down position it does two things. One, the shaft
trips a switch to disconnect the power to the motor and two, it releases
the brake. By releasing the brake the motor can back drive along with
the output. For 90 degree operation, the 250 in-lbs unit requires 1.6; the
700 in-lbs unit requires 3.1; the 1000 in-lbs unit requires 4.2; and 1500
in-lbs unit requires 6.3.

a Caution: Turn manual override shaft slowly. DO NOT jerk.

Manual Operation
1. The actuator cover should be securely attached.
2. Depress hub toward actuator cover.
3. Rotate the manual override shaft slowly; do not force.
4. The motor is now electrically disconnected.
5. Turn the manual override shaft clockwise for clockwise output.
6. Do not rotate actuator past full clockwise or counter-clockwise
position.

Automatic Operation
1. Pull hub away from the actuator cover.
2. The motor is now electrically connected and ready for automatic
operation.
3. The manual override shaft will freewheel.

Position Indication Stickers

Attached to the inside of the cover is a set of stickers with the words
CLOSED and OPEN. These stickers are to be attached to the outside
of the actuator near the base between the mounting feet. The stickers
have an orange triangle on them, such that when properly attached
to the actuator, they will line up with the triangle on the output shaft.
A sticker can be placed on either side of the unit to produce a visual
indication of the opened and closed position of the actuator.

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Automax CENTURA CE Series FCD AXENIM0037-01 12/05

Common Parts Related to All Actuators

No.

Item

Material

P/N

Painted Cover

Cast Aluminum

106100

516-24UNF HHCS/Shank

Stainless Steel

103233

16 Type A Washer

Stainless Steel

103715

1/2" Sleeve Bearing

Sintered Bronze

105590

Molded Oil Seal

Nitrile

105585

Manual Override Hub

Black 141 Lexan

105567

7/16 I.D. Klipring

Stainless Steel

106174

Handwheel (Optional)

Black Plastic

105974

Manual Override Shaft

Steel/Plated

105591

10

Brake Trip Washer

Aluminum

107065

11

Manual Override Coupler

Steel/Plated

106129

Manual Override Spring

Spring Steel

105593

16 Dia. Roll Pin

Spring Steel

103621

12

O-Ring, Base

N674-70 Nitrile

105584

13

CE1/CE2 Machined Base

Cast Aluminum

106098

CE4/CE7 Machined Base

Cast Aluminum

106099

CE5 Machined Base

Cast Aluminum

107503

8" Needle Bearing

Steel/Plated

105582

14

15

8" Sleeve Bearing

Sintered Bronze

105581

16

O-Ring, Output Shaft

N674-70 Nitrile

105583

17

11/2" Sleeve Bearing

Sintered Bronze

409944

18

CE1/CE2 Motor Plate

Cast Aluminum

106080

CE4/CE7 Motor Plate

Cast Aluminum

106081

CE5 Motor Plate

Cast Aluminum

107504

19

8" Sleeve Bearing

Sintered Bronze

105694

20

8-32 UNC Ground Screw

Steel/Plated

103627

21

#8 Cup Washer

Brass

105626

22

8-32 UNC x 8" Hex Screw

Steel/Plated

105577

23

8-32 UNC x 58" Phillips Hd.

Steel/Plated

105576

24

Actuator Bracket

Steel/Plated

108099

27

M.O. Cut-off Switch

Plastic/Steel

105769

28

Switch Insulator Gasket

Vulcanized Fiber

103675

29

4-40 UNC x 8" Phillips Hd.S

Steel/Plated

106146

30

4-40 UNC x 11/4" Phillips Hd.

Steel/Plated

100159

31

16" Higher Spacer

Nylon

105679

32

15 Amp Switch

Plastic/Steel

107765

33

16" Pop-in Bearing

Plastic

105851

34

Camshaft

Steel/Plated

107005

35

Large 4-Deg. Spline Shaft

Plastic

103571

16" Dia. Roll Pin

Spring Steel

103621

Small 4-Deg. Spline Shaft

Plastic

103572

16" Dia. Roll Pin

Spring Steel

103621

37

Switch Spring

Spring Steel

103714

38

Hi-Ramp Cam

Plastic

107322

36

Qty

Continued on Page 

Automax CENTURA CE Series FCD AXENIM0037-01 12/05

Common Parts Related to All Actuators (continued from Page )

No.

Item

Material

P/N

39

CE2/CE4 Output Shaft Assy

Steel

106096

CE5 Ouput Shaft Assy

Steel

107700

CE1/CE7 Output Shaft Assy

Steel

106097

CE1/2/5/& 7 Offset Shaft

Steel 86L20

104864

8 x 18 x 1.19" Long Key

Steel

105589

CE1 Offset Pinion

Steel -Heat Treated

104893

CE2 Offset Pinion

Steel -Heat Treated

104887

CE4 Offset Pinion

Steel -Heat Treated

104889

CE7 Offset Pinion

Steel -Heat Treated

104891

CE5 Offset Pinion

Steel -Heat Treated

107169

CE1/CE7 Offset Gear

Steel -Heat Treated

104890

CE2 Offset Gear

Steel -Heat Treated

104885

CE4 Offset Gear

Steel -Heat Treated

104884

CE5 Offset Gear

Steel -Heat Treated

107168

43

1.00 O.D.x 0.031 Spacer

Steel

105587

44

16" I.D. Snap Ring

Spring Steel

100678

58

Nameplate

Stainless Steel

105578

Ty-Rap Cable Tie

Plastic

101066

32" Dia. Drive Pins

Stainless Steel

105454

Cam Adjustment Sticker

Mylar

105757

Manual Override Sticker

Mylar

105756

Automax Logo Sticker

Mylar

105862

Position Indication Sticker

Mylar

106187

3/4" NPT Conduit Plug

Plastic

103685

Open/Close Stickers

Mylar

106186

59

Press Fit Washer

Steel

107178

60

Plug

Steel/Plated

107126

40
41

42

Qty

Additional Parts Specific To 115 VAC Actuators CE2, CE4, CE7, CE1, CE5
No.

Item

Material

P/N

49

115 VAC PSC Motor Int.

Steel/Copper

105675

16 Fin Impeller Fan

Plastic

105703

10-32 UNC x 316" SHCS

Steel/Plated

105599

54

Capacitor

Plastic Encapsulated

106619

55

Wire Tie

Plastic

106243

56

Quick Connect

Plastic/Steel

106761

25

6 Position Terminal Strip

Plastic/Steel

103997

2 Screw Marker Strip

Plastic

103996

3-48 UNC x 1/2" Pan Head

Steel/Plated

104837

115 VAC Wire Harness

Copper/Plastic

106111

115 VAC Schematic Sticker

Gloss Paper

815169

26

Qty

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Automax CENTURA CE Series FCD AXENIM0037-01 12/05

Automax CENTURA CE Series FCD AXENIM0037-01 12/05

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Automax CENTURA CE Series FCD AXENIM0037-01 12/05

Additional Parts Specific To 115 VAC With ESP Servo Positioner

Actuators Ce2ata, Ce4ata, Ce7ata, Ce1ata, Ce5ata
No.

Item

Material

P/N

Qty

No.

Item

Material

P/N

49

115 VAC PSC Motor Ext.

Steel/Copper

105676

49

12 VDC Gearmotor

Steel/Copper

106088

Fan Hub

Pressed Metal

107939

Motor Bracket Spacer

Aluminum

106193

Fan

Plastic

107940

6 Piston Terminal Strip

Plastic/Steel

103997

Compression Spring

Steel

108431

2 Screw Marker Strip

Plastic

103996

Brake Hinge Assy

Steel/Plastic

108600

3-48 UNC x 1/2" Pan Head

Steel/Plated

104837

Brake Solenoid

Coil

108022

12 VDC Wiring Harness

Copper/Plastic

106196

Switch Spring

Steel

103714

Wave Spring

Steel

108198

12 VDC Schematic
Sticker

Gloss Paper

815176

10-32UNF Set Screw

Stainless Steel

103486

.75 x .459 x .042 Washer

Brass

108361

Klip Ring

Stainless Steel

106174

No.

Item

Material

P/N

6-32 x 1/2 Phil. Screw

Steel

106061

49

24 VDC Gearmotor

Steel/Copper

106088

.350 x .118 Lg. Spacer

Bronze

108296

Motor Bracket Spacer

Aluminum

106193

6-32 Hex. Nut

Nylon/Steel

105864

10-32UNF SHCS

Steel

105599

6 Position Terminal
Strip

Plastic/Steel

103997

#6 Type A Plain Washer

Steel

100986

2 Screw Marker Strip

Plastic

103996

Brake Shim

Steel

108199

Steel/Plated

104837

8-32 x 58 Phil. Screw

Steel

105576

3-48 UNC x 1/2" Pan

Head

55

Wire Tie

Plastic

106243

24 VDC Wiring Harness

Copper/Plastic

106197

56

Quick Connect

Plastic/Steel

106761

24 VDC Schematic
Sticker

Gloss Paper

815176

54

Capacitor

Plastic
Encapsulated

106618

#6 x 0.19 lg. Spacer

Aluminum

100839

6-32 UNC x 8"

Phillips Hd.

Steel/Plated

100881

1/4 Turn Standoff

Plastic

105168

ESP3 Servo Positoner

Fiberglass

105005

Potentiometer

Plastic

106195

85- Tooth Gear

Aluminum

107312

85- Tooth Gear

Aluminum

105853

115 VAC ESP3 Wire

Harness

Copper/Plastic

106194

ESP3 Schematic Sticker

Glass Paper

815224

52

26

Additional Parts Specific To 12 VDC Actuators Ce2b, Ce4b, Ce7b,

Ce1b, Ce5b

25
26

Qty

Additional Parts Specific To 24 VDC Actuators Ce2c, Ce4c, Ce7c,

Ce1c, Ce5c

25

26

Qty

Automax CENTURA CE Series FCD AXENIM0037-01 12/05

Wiring Diagrams

Reversible DC Actuator

a Caution: To prevent ignition of hazardous atmospheres, keep

unit tight while circuits are alive. Disconnect supply circuit
before opening.

a CAUTION: Consult factory when wiring multiple actuators in

series or parallel. Serious damage may result.
NOTE: Wiring diagrams show internal wire connections and suggested
customer connection for proper use. Switches shown in customer
wiring are for illustration only and are not supplied with the actuator.

Reversible AC Actuator

Reversible AC Actuator with 2 Extra Switches

Reversible Modulating AC Actuator

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Automax CENTURA CE Series FCD AXENIM0037-01 12/05

Typical Actuator Specifications

Action

Reversible

Range of Adjustability
Supply Voltages

0 -270
AC:

115 VAC

+/-10%

230 VAC

50/60 Hz

24 VAC

DC:

12 VDC
24 VDC

Temperature Rating

-40F (-40C) to 160F (70C)

Enclosure Ratings

Nema 4, 4X, 7, 9 Watertight and Explosion-proof

Class I Groups C&D, Div. 1&2
Class II Groups E, F&G, Div. 1&2

Motor Types

AC:

Permanent Split Capacitor, Class B Insulation

DC:

Brush

AC Motor Thermal Protection

Automatically resetting

Travel and Aux. Switches

SPDT, Form C
15 amp 125 VAC 1/2 HP, 10 amp 250 VAC, 1/2 amp 125 VDC

Conduit Connections

3/4-14 NPT

Manual Override

300 In-lbs max input

Corrosion Protection

Chromate conversion undercoat with polyester electrostatic powder top coat

Terminal Strip Hookup

300V, 30 amp, 12-26 AWG

Lubrication

Permanently lubricated

Gear Train

Heat treated alloy steel able to withstand stall torque

Note: The above ratings may change depending on model configurations and options provided. Products may
differ as the result of the Company policy of continuous product improvement.
Motor
Option

Motor
Voltage

Duty
Cycle (1,3)

Std.
115 AC
25
A
115 AC
Extended: 75
B
12 DC
100
C
24 DC
100
D
230 AC
25
F
230 AC
Extended: 75
J
24 AC
100
Torque and Weights
Torque (In-Lbs)
Torque (N-M)
Weight (Lbs)
Weight (Kg)
Notes:

Run
Current
(Amps)

Locked
Rotor
(Amps)

1.1
0.5
1.6
0.9
0.7
0.3
0.5

1.3
0.6
3.0 (2)
2.0 (2)
0.8
0.4
0.8

Cycle Times in Seconds per 90 Degrees

Actuator Model
CE2
CE4
CE7
CE1
CE5
3
5
6
11
18
6
10
17
24
36
6
9
16
21
32
6
8
15
20
30
3
5
6
11
18
6
10
17
24
36
3
5
6
11
18
250
28
18
8

400
45
18
8

700
79
18
8

1000
113
18
8

1500
169
20
9

1. Duty cycle is the limit of on time as percentage of total cycle time. For example, the CE2 with standard motor
runs 3 seconds to open or close the valve. The motor must remain off for 9 seconds prior to starting the close
cycle. DC motors may be operated continuously.
2. Do not lock up DC motors.

10

3. CE5 duty cycles for AC motors are 20% for standard duty and 70% for extended duty.
4. For 180 degree applications, simply multiply the above cycle times by 2.

Automax CENTURA CE Series FCD AXENIM0037-01 12/05

Troubleshooting
Problem
There is power to the unit, but it does not respond.

Solution
Check the nameplate to see that the correct voltage has been applied.
Check the wiring to see that it is per the wiring schematic.
Check the limit switches to see if they are in the normal operating
range.
Check the manual override. If it is in the down position, the motor is
electrically disconnected.

Problem
Power is getting to the motor, but it merely hums.

Solution
Check to see that the proper voltage is applied. Make sure all the
connections are tight.
Check to see that the brake coil is pulling the brake pad and hinge away
from the fan.
Check to see that CW and CCW power connections are not powered at
the same time.

Problem
The actuator performs erratically.

Solution
Check to see that the actuator is not stalling.
Check the ambient temperature rating. The permanent split capacitor
units are equipped with thermal cut-outs. Excessive temperatures and
cycle frequencies may heat the motor up and the thermal cut-out turns
it off.

11

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United States
Flowserve Corporation
Flowserve Flow Control
1978 Foreman Drive
Cookeville, TN 38501
Tel 931 432 4021
Fax 931 432 5518

FCD AXENIM0037-01 Printed in USA. (Replaces AUTO-37)

To find your local Flowserve representative:

For more information about Flowserve Corporation, visit
www.flowserve.com or call USA 1 800 225 6989

Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended
function safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous applications under a wide
variety of industrial service conditions. Although Flowserve can (and often does) provide general guidelines, it cannot provide specific data and warnings for all possible applications. The purchaser/user must therefore assume the ultimate responsibility for the proper sizing and selection, installation, operation, and maintenance of Flowserve products. The purchaser/user should
read and understand the Installation Operation Maintenance (IOM) instructions included with the product, and train its employees and contractors in the safe use of Flowserve products in
connection with the specific application.
While the information and specifications contained in this literature are believed to be accurate, they are supplied for informative purposes only and should not be considered certified or as
a guarantee of satisfactory results by reliance thereon. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding any matter with respect to this
product. Because Flowserve is continually improving and upgrading its product design, the specifications, dimensions and information contained herein are subject to change without notice.
Should any question arise concerning these provisions, the purchaser/user should contact Flowserve Corporation at any one of its worldwide operations or offices.
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