GA(S) Series Globe Valve Actuators

GA(S) Series Globe Valve Actuators
GA(S) Series
COMMERCIAL
Globe Valve Actuators
• Non-Spring Return - GA24-562
• Spring Return - GASRE24-450
• Spring Return - GASEX24-450
The GA(S) Series is a direct mount line of linear motor
actuators to be used primarily on globe valves. The
patented drive-valve coupling allows the drive to be
connected to the valve automatically as soon as the
power is applied to the actuator. An external crank
handle enables the desired position to be set manually
as well. Microprocessor technology enables the actuator
to identify the functions required and to adapt itself
automatically to the control valve properties.
These actuators operate on 24V AC or DC, and all input
signals- 0-10V or 4-20mA modulating output, or On/
Off (2-point) or Floating (3-point) control. The actuator
automatically detects the control signal applied via a 2
LED display.
These actuators operate both 2 and 3-way valves and are
available in non-spring return and spring return versions.
The GA(S) series is bi-directional, selectable via screw
terminals.
Features and Benefits
• Easy Assembly with Valve
Stem connection takes place automatically after application of control voltage
• Works with Most Globe Valve Brands
Multiple adaptors allow assembly on third-party valves
Spring return versions allow for fail-open or fail-closed configurations
• Automatic Adaptation to Valve Stroke
Built-in intelligence matches the actuator to the valve stroke.
• Easy Configurability
Meets the requirements of virtually any heat exchanger control application.
• Spring Return Models
Available "fail up/retracted" and "fail down/extended"
06/26/15
COMMERCIAL
www.braycommercialdivision.com
GA-1
GA(S) Series - Actuator Specifications
Technical Specifications
Non-Spring Return
GA24-562
On/Off, Floating and Modulating
Spring Return
GASRE24-450
On/Off, Floating and Modulating, Shaft Normally Retracted
GASEX24-450
On/Off, Floating and Modulating, Shaft Normally Extended
Power
Requirements
On/Off, Floating and 24 VAC (±20%) at 50/60 Hz
Modulating
or 24 VDC (±15%)
Positioner1
Control Signal 1
0 to 10 V, Ri> 100 kΩ
Control Signal 2
4 to 20 mA, Ri = 50Ω
Position Feedback
Signal
0 to 10 V, Load 2.5 kΩ
Action
Direct or Reverse Acting
Switching Range
300 mv
Power
Consumption2
Non-Spring Return
Spring Return
10W, 18VA
7.5W, 20VA
Force
Non-Spring Return
Spring Return
562 lbs. (2,500 N)
450 lbs. (2,000 N) Power stroke and spring stroke
Stroke
Max. Temperature
of Medium3
Ambient
Conditions
0.31" to 1.57" (8 mm to 40 mm)
266˚F (130˚C)
Temperature
14˚F to 131˚F (-10˚ to 55˚C)
Humidity
0 to 95% RH without condensation
Level of Protection
Equivalent to NEMA 4 (IP 66)
Protection Class
III to IEC 60730
Enclosure
Self-extinguishing plastic sealing equivalent to NEMA 4
Electrical
Connection
13 AWG (2.5 mm²) with screw terminals.
Three knock-out cable entries for M20×1.5 (2×) and M16×1.5
Motor Run Time
sec. per in. (mm)
51 (2), 102 (4), 153 (6), Dip Switch Adjustable
Spring Run Time4
15… 30 seconds
Number of Spring
Returns
> 40,000
Response Time 3-Point
200 ms
Weight
UL Listed
Spring Return
Non-Spring Return
12.3 lbs. (5.6 kg)
9.1 lbs. (4.1 kg)
Temperature-Indicating and Regulating Equipment, XAPX, XAPX7. File E366456
Also for On/Off (2-point) or Floating (3 point) depending on the connection for 24V~
Design the transformers for this value, otherwise functional faults may occur.
3
An intermediate piece is required for medium temperatures between 266˚F (130˚C) and 464˚F (240˚C)
4
The return time corresponds to a stroke of 0.55 in. (14 mm) to 1.58 in. (40 mm) and does not depend on the set run time.
1
2
Disclaimer - The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond
these specifications, consult the local Bray office. Bray, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.
COMMERCIAL
GA-2
www.braycommercialdivision.com
GA(S) Series - Curve Characteristic Switch Settings
Desired
Character.
Curve
Characteristic
Curve for Valve
Switch Coding
Equal
percentage
4
On
=%
Off
Stroke
1 2 3
v
4
On
x2
Off
Signal
Stroke
Linear
1 2 3
4
On
lin
Off
Signal
Stroke
v
Equal
percentage
Signal
v
Stroke
v
1 2 3
Signal
v
Stroke
4
=%
On
Off
Signal
Stroke
Stroke
v
Linear
Signal
Signal
Stroke
v
Quadratic
v
Stroke
v
1 2 3
Characteristic
Effective on Valve
Curve for Drive
1 2 3
Signal
v
4
On
lin
Off
Stroke
Signal
Signal
= factory setting
GA(S) Series - Run Time Switch Settings
Run Time
per
in.(mm)
Switch coding
1 2 3
Run time for
0.79 in.(20 mm)
stroke
Run time for
1.58 in.(40 mm)
stroke
28s ± 1
40s ± 1
80s ± 2
56s ± 2
80s ± 2
160s ± 4
84s ± 4
120s ± 4
240s ± 8
4
51 (2)
Seconds
102 (4)
Seconds
Run time for
0.55 in.(14 mm)
stroke
On
Off
1 2 3
4
On
Off
1 2 3
4
On
153 (6)
Seconds
Off
On
Off
= factory setting
COMMERCIAL
www.braycommercialdivision.com
GA-3
GA(S) Series - LED Display
LED Display
The display consists of two dual-color LEDs (red/green).
Both LEDs flashing red: calibration procedure
Upper LED lit red: upper limit stop or shaft is fully retracted
Lower LED lit red: lower limit stop or shaft is fully extended
Upper LED flashing green: drive running, moving towards shaft retracted
Upper LED lit green: drive stationary, last direction of running was shaft was retracting.
Lower LED flashing green: drive running, moving towards shaft extended.
Lower LED lit green: drive stationary, last direction of running shaft extending
Both LEDs lit green: waiting time after switching on or after spring return- Spring Return Only.
No LED lit: no power supply (GAS Spring Return models, terminal 21
(GA Non-Spring return moldels, terminals 2a or 2b)
Both LEDs are flashing red and green: drive is in manual mode
GA(S) Series - Convenience Features
This Bray series of actuators is the most convenient retrofit actuator you can buy.
This actuator calibrates itself automatically. As soon as voltage is applied
to the drive for the first time, it moves to the lower limit stop on the valve, thus
enabling automatic connection with the valve stem. Then it moves to the
upper limit stop and the value is recorded and saved with the help of a path
measurement system. The control signal and feedback signal are adjusted to
this effective stroke. There is no re-calibration if the voltage is interrupted or
the voltage supply is removed. The values remain saved.
The patented drive-valve coupling automatically attaches to valve spindle and
easily detaches when you simply grasp the coupling and push up. There are
adapters available for assembly to most globe valve manufacturers.
Furthermore, these actuators can be replaced while keeping the valve in-line
for non-spring return and spring return version for both fail open and failed
closed configurations.
COMMERCIAL
GA-4
www.braycommercialdivision.com
GA(S) Series - Dimensions
2.36 in.
Non-Spring Return
(60mm)
2.24 in.
(57mm)
2.87 in.
Spring Return
(73mm)
9.06 in.(230mm)
B
0.73 in.
(18.5mm)
C
3.54 in.(90mm)
A
Description
GA(S) Series
A
2.52 in.
(64mm)
B
11.38 in.
(289mm)
C
1.73 in.
(44mm)
B
A
Adaptor for media temperatures between
266˚F (130˚C) and 464˚F (240˚C)
Part Number
A
4.31 in.
0372336 240
(109.4mm)
B
3.94 in.
(100mm)
COMMERCIAL
www.braycommercialdivision.com
GA-5
GA(S) Series - Wiring
Non-Spring Return
Modulating
_
+
1
2a
2b
_
_
+
y=0…10V
+
3u
24 V~/=
24 V~/=
y=4…20mA
3i
On/Off (2 Point)
yo=0…10V
44
1 2a 2b 3u 3i 44
µC
Floating (3 Point)
24 V~/=
M
S1 S2 S3 S4
On
100%
2a
Off
S1; S2 = Runtime
S3; S4 = Characteristic
0
2b 3u 3i 44
1 2a
2b
0
10V
Y = modulating signal
3u = 0 .. 10 V, in case of control by voltage
3i = 4 .. 20 mA, in case of control by current
44 = 0 .. 10 V Feedback, independent from the use of 3u or 3i
= Extra Low Voltage
Spring Return
Modulating
_
_
_
+
+
y=0…10V
+
y=4…20mA
3u
21 1 2a 2b
3i
24 V~/=
On/Off (2 Point)
24 V~/=
yo=0…10V
44
21 1 2a 2b 3u 3i 44
µC
0%
S1 S2 S3 S4
2a
On
2b
Off
S1; S2 = Runtime
S3; S4 = Characteristic
21
3u
3i
44
0V
4mA
0V
100% 10V 20mA 10V
0% 10V 20mA 0V
100% 0V
4mA 10V
GASRE GASEX
0%
Floating (3 Point)
M
24 V~/=
Shaft
0%
100%
100%
0372333 001
0372333 002
(Auxillary Switches)
4 5 6 7 8 9
COMMERCIAL
GA-6
2b 3u 3i 44
2pt, 3pt, Cont.
Y = modulating signal
3u = 0 .. 10 V, in case of control by voltage
3i = 4 .. 20 mA, in case of control by current
44 = 0 .. 10 V Feedback, independent from the use of 3u or 3i
Options
21 1 2a
www.braycommercialdivision.com
= Extra Low Voltage
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