Heavy -duty, high performance applications
require RPDA Actuators
Page 2
2
Page 3
Becker RPDA Rotary Piston Double Acting
Actuators from GE Oil & Gas are ideally
suited for operations that demand a lock
last failure mode, including below ground
regulation and bleed-to-pressure
applications. These long-lasting, compact,
durable, and maintenance free actuators
can be retrofitted onto almost all pipeline
valves. RPDA Actuators are built to accept
high pressure power gas and can
incorporate options that eliminate
emissions and economically reduce
below-ground noise.
Features
Bleed to Pressure System* can
eliminate bleed gas emissions
Retrofits to almost any pipeline valve
High pressure RPDA actuator accepts
high pressure natural gas up to 500
psig (3447 kPa).
Upright actuator design saves space
and promotes longer actuator piston
seal life
Designed to be maintenance free
Comes equipped with a precision linear
scale that indicates valve position in ten
degree increments.
Crank-arm design actuators are
specifically suited for control valve
applications
May be mounted in any installation
orientation
3
Page 4
Technical Specifications
Actuator Mechanism Type
Rotation (Output)
Actuator Stops
Installation
Coating
Power Gas Requirements
Pneumatic crank arm
90° (standard)
Integral
Vertical (recommended),
Horizontal
Epoxy (standard)
Sweet natural gas
500 psig (3447 kPa) Models
Maximum Power Gas
10L and smaller 4
50 psig (3103 kPa) Models 12L
and larger
Minimum Power Gas
50 psig(345 kPa)
recommended
-20°F to +160°F (-29°C to
Operating Temperature
Range
+71°C) standard, -30°F to
+160°F (-34°C to +71°C)
(Optional low temp. spec.)
Torque Output
Dimensions
See Table 7
See Tables 3, 4, and 5
Filtered to 100μ nominal. Free
Sweet Natural Gas
Specification
of excessive moisture (< 7 lbs.
entrained H2O per 1.0 mmscf)
and liquid hydrocarbons.
If excessive moisture or hydrocarbon content is present, a
Filter-Dryer may be necessary. For adequate filtration and
elimination of moisture, a Becker Model FD-1500 Filter-Dryer
should be installed. Refer to Becker FD-1500 literature to
determine if a Model FD-1500 Filter-Dryer is necessary.
Figure 2 - Becker RPDA Actuated Control Valves
A pressure control regulator station is shown here with Becker RPDA
actuators and T-Ball Control Valves. The RPDA actuators are equipped
with Becker VRP-CH Valve Regulator Pilots (VRP). The VRP is capable
of providing extremely accurate pressure control with fast response
necessary for power plant type applications. Additionally, note that
the VRP-CH pressure control pilots are equipped with Model VB-250
Volume Boosters to increase stroking speed. The primary regulator is equipped with a QTCV-T2 Quiet Trim Control Valve to provide
decreased noise during operation. The monitor regulator is equipped
with a FPCV-T0 Full Port Control Valve that ensures bubble tight shutoff with class VI shutoff.
Figure 5.1
Mount #1 - Left Hand (Standard)
with clean sweep feature
Actuator located on left hand
side of valve when looking in
directionof flow (actuator
vertical/valve stem horizontal).
Figure 5.2
Mount #2 - Right Hand
Actuator located on right hand
side of valve when looking in
direction of flow (actuator
verticle/valve stem horizontal).
FLOW
Figure 5.3
Mount #3 - Vertical Stem
(Actuator Downstream)
Actuator located on downstreamside of valve when looking in direction of flow (actuator
horizontal/valve stem vertical).
FLOW
Figure 5.4
Mount #4 - Vertical Stem
(Actuator Upstream)
Actuator located on up-stream
side of valve when looking in
direction of flow (actuator
horizontal/valve stem vertical).
6
Page 7
RPDA high pressure actuator built
solid for all your control valve needs
Bleed to Pressure System* Can Eliminate
Bleed Gas Emissions
GE’s Becker RPDA Actuators feature the unique ability
to incorporate the Bleed to Pressure System feature.
GE’s Becker RPDA Actuators and control instrumentation can accept high pressure power gas and discharge
bleed gas to lower pressure systems.Bleed to Pressure
Systemeliminates all atmospheric emissions!
Maintenance Free
The RPDA actuator is designed to be maintenance free,
no regular lubrication is required for the piston cylinder
or the actuator mechanism.
High Pressure Capability
The RPDA actuator is specifically
constructed to accept high
pressure natural gas up to
500 psig (3448 kPa). Higher
pressure power gas allows use
of smaller actuators and
implementation of Becker
products’ unique Bleed to
Pressure System.
Below Ground Actuator Option Reduces Noise
Attenuation up to 37 dBA
Becker RPDA actuators are available with a unique
below ground option that provides superior noise
attenuation in regulator stations at minimal cost.
Additionally, below ground stations minimize ambient
heat loss by maintaining piping systems below ground.
We can retrofit to almost any valve in
your pipeline
We can provide high quality actuators to mate to almost any quarter turn valve, regardless of manufacturer
or age. We have years of experience successfully adapting our actuators to fit a multitude of valves.
U-Cup Seals
U-cup Piston Seals are designed to provide superior
sealing capabilities with minimal friction. This design
allows accurate positioning of the control valve actuator
with very slight pressure differential to the piston.
Vertical Advantage
Upright actuator promotes
longer actuator piston seal life,
saves space, and requires less
maintenance than other actuators.
Easy to Read Travel Indicator
All RPDA actuators come equipped
with a precision linear scale that
indicates valve position in ten
percent increments.
Crank Arm Designed
for Control Valves
Crank arm design actuators are specifically
suited for control applications. The crank arm provides
an increasing torque curve that develops high torque
output where it counts. Additionally, the crank arm
design minimizes friction and lost motion.
Torque Arm Bearings
RPDA Actuators feature two large Torque Arm
Bearings to eliminate side load to control valve stem.
Both inboard and outboard torque arm bearings are
manufactured from non-metallic Duralon™ material to
ensure maximum load bearing capacity.
Duralon is a registered trademark of Rexnord, Inc.
Figure 6 - Cutaway view of RPDA Actuator and Cylinder.
Custom Coatings Available
Standard preparation of Becker RPDA actuators includes sandblast per SP-10 and epoxy coating for above
ground actuators and coal tar epoxy for below ground
actuator portions. RPDA actuators are available with
custom coatings to suit application needs
7
Page 8
E
A
C
B
D
G
F
I
Figure 7 - RPDA Single Cylinder Actuator up to 12 inch stroke
Table 3 - RPDA Single Cylinder Actuator Dimensions up to 12 inch stroke
H
Dimensions in inches (mm)WeightVolume
ModelABCDEFGHI
4D
5D
6D
6F
8F
8H
8L
10F
10H
10L
12L
14L
9.25
(235)
9.56
(243)
10.19
(259)
12.19
(310)
11.69
(297)
13.06
(332)
17.69
(449)
13.06
(332)
15.06
(383)
19.06
(484)
19.06
(484)
20.94
(532)
14.13
(359)
14.13
(359)
14.63
(371)
18.19
(462)
18.81
(478)
19.81
(503)
25.06
(637)
19.25
(489)
20.25
(514)
25.50
(648)
25.50
(648)
25.75
(654)
28.63
(727)
28.94
(735)
30.06
(764)
34.81
(884)
36.50
(927)
36.75
(933)
51.50
(1308)
38.56
(979)
42.44
(1078
53.31
(1354)
53.81
(1367)
55.56
(1411)
2.38
(60)
2.38
(60)
2.38
(60)
3.63
(92)
3.63
(92)
4.75
(121)
7.25
(184)
3.63
(92)
4.75
(121)
7.25
(184)
7.25
(184)
7.25
(184)
6.25
(159)
7.63
(194)
8.63
(219)
6.50
(165)
8.50
(216)
8.50
(216)
8.50
(216)
10.63
(270)
10.63
(270)
10.63
(270)
12.75
(324)
14.75
(375)
4.50
(114)
5.50
(140)
6.50
(165)
6.50
(165)
8.50
(216)
8.50
(216)
8.50
(216)
10.63
(270)
10.63
(270)
10.63
(270)
14.75
(375)
14.75
(375)
0.38
(10)
0.38
(10)
0.38
(10)
1.38
(35)
1.38
(35)
1.50
(38)
4.00
(102)
1.38
(35)
1.50
(38)
4.00
(102)
4.00
(102)
4.00
(102)
5.38
(137)
5.38
(137)
5.38
(137)
7.00
(178)
7.00
(178)
7.00
(178)
8.50
(216)
7.00
(178)
7.00
(178)
8.50
(216)
8.63
(219)
8.63
(219)
NOTE: Dimensions “B” and “C” will change for below ground units according to depth of burial
2.13
(54)
2.13
(54)
2.13
(54)
2.75
(70)
2.75
(70)
2.75
(70)
3.50
(89)
2.75
(70)
2.75
(70)
3.50
(89)
3.63
(92)
3.63
(92)
lbs
(kg)
120.00
(54)
125.00
(57)
150.00
(68)
210.00
(95)
245.00
(111)
295.00
(134)
440.00
(200)
345.00
(157)
390.0
(177)
545.00
(247)
655.00
(297)
850.00
(386)
3
in
(cm3)
50.2
(823)
78.5
(1,286)
113.0
(1,852)
169.6
(2,779)
301.4
(4,940)
401.9
(6,576)
602.9
(9,879)
471.0
(7,718)
628.0
(10,291)
942.0
(15,437)
1846.3
930,256)
1846.3
(30,256)
8
Page 9
E
A
C
C
B
K
G
D
F
J
I
Figure 8 - RPDA Single Cylinder Actuator greater than 12 inch stroke
Table 4 - RPDA Single Cylinder Actuator Dimensions greater than 12 inch stroke
H
Dimensions in inches (mm)WeightVolume
ModelABCDEFGHIJKL
12T
12X
12Z
14T
14X
14Z
29.56
(751)
33.56
(852)
35.56
(903)
30.94
(786)
34.94
(887)
36.94
(938)
41.00
(1041)
47.63
(1210)
48.63
(1235)
41.63
91057)
48.00
(1219)
49.00
(1245)
86.56
(2199)
100.38
(2550)
103.38
(2626)
88.31
(2243)
101.94
(2589)
104.94
(2665)
12.00
(305)
14.50
(368)
15.75
(400)
12.00
(305)
14.50
(368)
15.75
(400)
12.75
(324)
12.75
(324)
12.75
(324)
14.75
(375)
14.75
(375)
14.75
(375)
12.75
(324)
12.75
(324)
12.75
(324)
14.75
(375)
14.75
(375)
14.75
(375)
3.63
(92)
3.63
(92)
3.63
(92)
3.63
(92)
3.63
(92)
3.63
(92)
12.00
(3050
12.00
(305)
12.00
(305)
12.00
(305)
12.00
(305)
12.00
(305)
5.00
(127)
5.00
(127)
5.00
(127)
5.00
(127)
5.00
(127)
5.00
(127)
3.75
(95)
3.75
(95)
3.75
(95)
3.75
(95)
3.75
(95)
3.75
(95)
20.00
(508)
20.00
(508)
20.00
(508)
20.00
(508)
20.00
(508)
20.00
(508)
NOTE: Dimensions “B” and “C” and K” will change for below ground units according to depth of burial
9.56
(243)
9.56
(243)
9.56
(243)
9.56
(243)
9.56
(243)
9.56
(243)
lbs
(kg)
985
(447)
1135
(515)
1295
(588)
1165
(529)
1335
(606)
1425
(647)
3
in
(cm3)
2262.0
(37,068)
2715.0
(44,491)
2941.0
(48.194)
3079.0
(50,456)
3695.0
(60,550)
4003.0
(65,597)
9
Page 10
EF
A
L
C
K
G
D
Figure 9 - RPDA Double Cylinder Actuator Dimensions greater than 12 inch stroke
Table 5 - RPDA Double Cylinder Actuator Dimensions greater than 12 inch stroke
B
J
I
H
Dimensions in inches (mm)WeightVolume
ModelABCDEFGHIJKL
D12T
D12X
D12Z
D14T
D14X
D14Z
29.56
(751)
33.56
(852)
35.56
(903)
30.94
(786)
34.94
(887)
36.94
(938)
41.00
(1041)
47.63
(1210)
48.63
(1235)
41.63
91057)
48.00
(1219)
49.00
(1245)
86.56
(2199)
102.19
(2550)
106.19
(2697)
91.31
(2319)
103.94
(2589)
107.94
(2742)
12.00
(305)
14.50
(368)
15.75
(400)
12.00
(305)
14.50
(368)
15.75
(400)
12.75
(324)
12.75
(324)
12.75
(324)
14.75
(375)
14.75
(375)
14.75
(375)
12.75
(324)
12.75
(324)
12.75
(324)
14.75
(375)
14.75
(375)
14.75
(375)
3.63
(92)
3.63
(92)
3.63
(92)
3.63
(92)
3.63
(92)
3.63
(92)
12.00
(3050
12.00
(305)
12.00
(305)
12.00
(305)
12.00
(305)
12.00
(305)
5.00
(127)
5.00
(127)
5.00
(127)
5.00
(127)
5.00
(127)
5.00
(127)
3.75
(95)
3.75
(95)
3.75
(95)
3.75
(95)
3.75
(95)
3.75
(95)
20.00
(508)
20.00
(508)
20.00
(508)
20.00
(508)
20.00
(508)
20.00
(508)
NOTE: Dimensions “B” and “C” and K” will change for below ground units according to depth of burial
The Becker Below Ground Ball Valve Regulator option
is unique to GE and provides a multitude of benefits by
direct burial of the control valve. The valve actuator,
lubrication lines,and drain lines are extended above
ground while the ball valve remains below ground. The
primary advantage of Becker Below Ground Regulators
is inexpensive noise attenuation in excess of 25 dBA.
More than 25 dBA noise attenuation
Less ambient heat loss
May use smaller adjacent piping diameter
Smaller station footprint
Most economical noise attenuation
May eliminate need for buildings/enclosures by
utilizing the fiberglass cabinet
35 dBa
37 dBa
30
30 dBa
25 dBa
20
10
3 ft Depth
4 ft Depth
5 ft Depth
6 ft Depth
0
Figure 10 - Below Ground Noise Attenuation Compared to Depth.
Typical below ground depths range from 3 feet to 6 feet burial.
The below ground depth is measured from centerline of pipe to
ground. Below ground usually provides from 25 dBA to 37 dBA noise
attenuation
Figure 12 - Installation of Becker Below Ground Regulators
(After Backfill)
The customer was able to achieve up to 25 dBA noise attenua-
tion over conventional above ground control valves with minimal
costs. The RPDA actuator utilizes an extended linkage to throttle the
control valve below ground. Many GE customers have utilized the
below ground concept for many years with great success and minimal maintenance. The topworks of the control valve actuators are
enclosed with Becker CAB Series Fiberglass Cabinets (green) after
backfill of regulator station. 16” Below Ground Ball Valve Regulators
are located at left, while 30” Below Ground Ball Valve Regulators
are located at right. A masonry wall has been installed at the
perimeter of the station. Upstream station isolation valves are
located in the foreground of the picture.
Figure 11 - Installation of Becker Below Ground Regulators
(Prior to Backfill) A large natural gas transmission/distribution
company based in Southern California installed Becker Below
Ground Ball Valve Regulators to achieve maximum noise attenuation, minimal maintenance, and optimum cost effectiveness. The
Below Ground Regulator can provide up to 37 dBA additional noise
attenuation with minimal additional cost. Two different size Below
Ground Ball Valve Regulators are show here. 16” Bore Below Ground
Regulators are shown in background, while 30” bore Below Ground
Ball Valve Regulators are shown in foreground. The Below Ground
Ball Valve Regulators are shown during installation, prior to backfill
of the regulator station.
13
Page 14
Accessories
GE’s Becker Control Valve Actuators provide reliability and accuracy for all of your
control valve applications
Limit Switches
Limit switches provide an indication of valve status and are commonly utilized on both on-off
and control valves. A limit switch assembly will close a contact at both the full-open and at
the full-closed position of valve travel. The switches provide a remote indication to gas control,
RTU or a flow computer as to the status of a valve. Limit switch assemblies are available with a
variety of configurations.
Housing NEMA 4, 4X, 7, Class I, Groups C & D,
Division 1 & 2
Switches 2 or 4
Option 2 or 4 Hermetically Seales Switches
Position Transmitter
The Valve Position Feedback assembly provides a quantitative indication of the exact position
of a control valve. The Valve Position Feedback assembly provides 4-20 mA analog remote position feedback proportional to the control valve position. The feedback signal may be utilized
as an integral portion of the control loop or merely as an additional feedback signal to gas
control for monitoring valve status. Valve Position Feedback is typically utilized on flow control
valves
Transmitter 4-20 mA Output
Housing NEMA 4, 4X, 7, Class I, Groups C & D,
Division 1 & 2
Switches 2 or 4
Option 2 or 4 Hermetically Seales Switches
SPDT Single Pole, Double Throw
DPDT Double Pole, Double Throw
up to 125 V D.C. at .5 amps
up to 250 V A.C. at 15 amps
SPDT Single Pole, Double Throw
DPDT Double Pole, Double Throw
up to 125 V D.C. at .5 amps
up to 250 V A.C. at 15 amps
Trip Valve
The Trip Valve protects double-acting actuators from loss of supply gas pressure. In the event
that the supply gas pressure falls below a minimum level, the trip valve can be configured to do
one of the following: lock the valve in last position, stroke the valve to the full-open position*,
Stroke the valve to the full-closed position*
*These applications require an additional volume tank to perform the operation
Max Allowable 150 psig 91034 kPa)
Weight 4.5 lbs (2.0 kg)
Body Connections 1/4” FNPT
Temp. Limits -40°F to + 180 F
(-40°C to +82°C)
Hydraulic Operator override
The Hydraulic pump override is utilized for manual operation of large control valves when
pneumatic power is not available. The Hydraulic pump override utilizes a hydraulic pump and
reservoir to develop necessary torque to close/open the control valve. Hydraulic pump overrides are typically utilized on ball control valves larger than 16” bore.
Trip PointAdjustable from 40 psig (276 kPa) to 70% of supply pressure
Volume Tank Required for fail-open or fail closed modes. DOT approval
LP Tank (240 psig (1655 kPa) Max
with DOT Stamp). Size based on
application
14
Page 15
Let GE help select the perfect rotary control valve actuator
Table 8- Selection table for Becker Control Valves and Actuators
RPDA (Small Models)
RPDA (Large Models)
SYDA (Small Models)
SYDA (Large Models)
RPSR
SYSR
LPDA (Small Models)
LPDA (Large Models
LPSR
LD
Actuator Instrumentation
VRP-CH-Pilot
VRP-B-CH Pilot
VRP-SB-CH-Pilot
VRP-SB-PID Pilot
HPP-4 Positioner
HPP-5 Positioner
HPP-SB Positioner
DNGP Positioner
VRP-SB-GAP
FPCV-T0
QTCV-T1
QTCV-T2
QTCV-T4
Globe Series
Bleed to Pressure System BPS
AB Series Atmospheric Bleed
Control
NBV Series No-Bleed Valve
DPS-2 Series Non-Bleed Sensor
PS-2 Series Non-Bleed Sensor
SP Series Setpoint Pump
RSM Series Remote Setpoint Module
Panel Mounting
Stainless Steel Option
VB Series Volume Booster
QEV Series Quick Exhaust Valve
I/P Transducer
SLV Series Signal Lock Valve
™
••••••
••
••••
••••
••••••
•••
••••
••••••••••
••••••••••
Compatible Valves
••••••
••••••
••••••
••••••
•••
Actuator Options
•••••••
•••••••
••••
••••
••
•••••
•••••
••••••
••••••••
•••••
••
•••
•••
GE has a wide variety of control valve
actuators with a variety of features that
ensure the optimum solution for your
application needs. Refer to the figures
to the left to assist you in selecting the
proper control valve actuator and
accessories.
The Becker RPDA Actuator is a rugged, quarter-turn
actuator design for the rigors of aggressive throttling
service. The RPDA features a high pressure crank-arm
design specifically geared for control valve service.
The high pressure capability of the RPDA allow power
gas pressures up to 500 psig. This extended power
gas range permits the implementation of GE’s unique
“bleed to pressure system” that eliminates all atmospheric emissions. Additionally, the RPDA is available
with a Below Ground Option to substantially reduce
noise with minimal additional expense.
1. RPSR, SYDA, and LPDA Small Models are defined as actuator size <2000 in³ (0.333m³).
2. RPSR, SYDA, and LPDA Large Models are defined as actuator size >2000 in³ (0.333m³).
3. LD Series Actuators are limited to Becker Series Globe Valves
TM
is limited to discharge pressure systems below 300 psig (2068 kPa). Consult Becker for
4. BPS
application assistance.
*CAUTION: This information is intended as a guideline for application
of Becker Control Valve products. GE strongly recommends consulting
Becker product Engineering prior to application of any product.
15
Page 16
GE Oil & Gas
16250 Port Northwest
Houston TX 77041
+1 866 754 3562