Standard Instrumentation Packages For ORBIT Pneumatic Actuators

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Standard Instrumentation Packages for
ORBIT Pneumatic Actuators

VALV E S & MEA S U R E M E N T

Table of Contents

STANDARD INSTRUMENTATION PACKAGES FOR
ORBIT PNEUMATIC ACTUATORS
Introduction............................................................................................................................... 4
Quality Assurance...................................................................................................................... 5
Ordering Information and Unit Reponsibility............................................................................... 6
Systems for Spring-Close Actuators
Fail Close on Loss of......................................................................... Figure No................ Page
Pneumatic Signal.............................................................................. A-12100..................... 7
Electric Signal................................................................................... A-12101..................... 8
Pneumatic Signal or Supply Pressure................................................. A-12102..................... 9 *
Electric Signal or Supply Pressure...................................................... A-12103..................... 9
Electric Signal or Supply Pressure...................................................... A-12842................... 10
Pneumatic Signal, Manual Reset to Open.......................................... A-13156................... 11 *
Electric Signal, Manual Reset to Open............................................... A-12338................... 11
Pneumatic Signal or Supply Pressure, Manual Reset to Open............. A-14741................... 12
Electric Signal or Supply Pressure, Manual Reset to Open.................. A-12291................... 13
High-Pressure Shutdown System....................................................... A-12755................... 14
Low-Pressure Shutdown System........................................................ A-13526................... 15
High-Low Pressure Shutdown System............................................... A-12385................... 15 *
Systems for Spring-Open Actuators
Fail Open on Loss of........................................................................ Figure No................ Page
Pneumatic Signal.............................................................................. A-12306................... 16 *
Electric Signal................................................................................... A-12682................... 16
Pneumatic Signal or Supply Pressure................................................. A-12309................... 17 *
Electric Signal or Supply Pressure...................................................... A-12455................... 17
Electric Signal or Supply Pressure...................................................... A-12864................... 10 *

* Refer to this page for a similar system. Exact system is not shown.

Systems for Double-acting Actuators
Fail Close on Loss of......................................................................... Figure No................ Page
Pneumatic Signal.................................................................................... A-12104................... 18
Electric Signal.......................................................................................... A-12105................... 18 *
Pneumatic Signal, Actuator with Manual Mechanism.............................. A-12106................... 19 *
Electric Signal, Actuator with Manual Mechanism................................... A-12107................... 19
Pneumatic Signal or Supply Pressure....................................................... A-12108................... 20
Pneumatic Signal or Supply Pressure, Actuator with Manual Mechanism.A-12109................... 20 *
Electric Signal or Supply Pressure............................................................. A-12276................... 21
Electric Signal or Supply Pressure, Actuator with Manual Mechanism...... A-12299................... 22
Pneumatic Signal or Supply Pressure, Manual Reset to Open................... A-13860................... 23
Electric Signal or Supply Pressure, Manual Reset to Open........................ A-12719................... 24

Systems for Double-acting Actuators
Fail Close on Loss of......................................................................... Figure No................ Page
Pneumatic Signal.................................................................................... A-12741................... 18 *
Electric Signal.......................................................................................... A-13666................... 18 *
Pneumatic Signal, Actuator with Manual Mechanism.............................. A-12978................... 19 *
Electric Signal, Actuator with Manual Mechanism................................... A-12413................... 19 *
Pneumatic Signal or Supply Pressure....................................................... A-12677................... 20 *
Pneumatic Signal or Supply Pressure, Actuator with Manual Mechanism.A-12702................... 20 *
Electric Signal or Supply Pressure............................................................. A-12345................... 25
Electric Signal or Supply Pressure, Actuator with Manual Mechanism...... A-12680................... 25 *

* Refer to this page for a similar system. Exact system is not shown.

VALV E S & MEA S U R E M E N T

Systems for Double-Acting Actuators
Fail in Last Position on Loss of........................................................ Figure No................ Page
Pneumatic Signal.................................................................................... A-12110................... 26 *
Electric Signal.......................................................................................... A-12111................... 26
Pneumatic Signal, Actuator with Manual Mechanism.............................. A-12112................... 26 *
Electric Signal, Actuator with Manual Mechanism................................... A-12113................... 26 *
Pneumatic Signal or Supply Pressure....................................................... A-12114................... 27 *
Electric Signal or Supply Pressure............................................................. A-12115................... 27
Pneumatic Signal or Supply Pressure, Actuator with Manual Mechanism.A-12116................... 29 *
Electric Signal or Supply Pressure, Actuator with Manual Mechanism...... A-12117................... 29
Electric Signal, Single-Exhaust Solenoid................................................... A-13289................... 26 *
Electric Signal, Single-Exhaust Solenoid, Actuator with Manual Mechanism.A-12814................ 26 *
Electric Signal or Supply Pressure, Single-Exhaust Solenoid...................... A-14983................... 31
Electric Signal or Supply Pressure, Single-Exhaust Solenoid,
Actuator with Manual Mechanism.......................................................... A-12946................... 31 *
Override Operation.................................................................................................................. 33
Information Required to Order Pneumatic Systems Other Than Standard Packages................... 33
Adaptation of CX Micro Switch to ORBIT Diaphragm and Pistons Actuators............................. 34
Proximity Type Limit Switches for ORBIT Valves and Actuators.................................................. 35
CAMSERV Aftermarket Services for Valves and Actuation......................................................... 36

* Refer to this page for a similar system. Exact system is not shown.

INTRODUCTION
Cameron’s ORBIT Brand can Provide you With Perfectly Matched Packages Which Include
Valve, Actuator and Instrumentation
Unique Design Makes Automation Easier
Our ORBIT valves are ideal for automation by the very nature
of their operating principle. Many automated valves remain
open or closed for extended periods of time. This and other
environmental and process conditions can cause higher
breakaway torque in valves with friction between their
sealing surfaces.
®

The mechanical camming action of an ORBIT valve retracts
the core from its seat as it opens. The core is then rotated to
the open position without scraping the seat. This reduces the
need for the high torque actuators found on many other
valves, which scrape their seating surfaces together during
opening and closing. By eliminating the opening and closing
friction, ORBIT valves can provide economical, low-pressure
operators and still be assured of sufficient thrust to open and
close the valve.

ORBIT Actuators are Specially Designed
for Use Exclusively on ORBIT Valves
ORBIT actuators provide reliable, trouble-free, on-off
operation and are especially suitable for simple or extensive
instrumentation.

ORBIT Valves Offers a Wide Variety of Piston
and Diaphragm Actuators
ORBIT valves can be equipped with perfectly matched ORBIT
linear actuators. Many capabilities can be added to the basic
double-acting actuator. Models are available with spring
return to open or close. Manual override mechanisms also
are available.

A Full Range of Instrumentation Capabilities
A variety of instrumentation capabilities can be provided to
meet your system’s needs. Many common systems are
available as economical standard packages. Pneumatically or
electrically activated systems are available. You can order our
standard systems or custom systems designed to your
specifications. Standard packages include combinations for
spring-return or double-acting actuators, with signals to open
or close and provisions for fail open, fail close, or fail in last
position on loss of signal or pneumatic supply.

Design Assistance
The ORBIT brand can provide design assistance and
recommend proven systems, or you may prefer to specify
your own design and have our factory mount and test it for
you. Most ORBIT valves can easily be automated in the field
at a later date.

VALV E S & MEA S U R E M E N T

QUALITY ASSURANCE
Cameron’s Little Rock, Ark., US, manufacturing facility has
quality programs that are ISO 9001 registered.

Specifications and Compliances
• API 6D
• ISO 9001:2008
• PED 97/23/EC
• ATEX Directive 94/9/EC
• GOST
• GOST-R Certificate and RTN Permit
• ISO 15848-1 (Fugitive Emission Type Testing)
• S hell GSI SPE 77/300 TAT Qualified and
TAMAP Two-Star Rating
• ASME B16.34
Cameron’s manufacturing philosophy and the standard
36-month warranty ensures that the design, materials and
workmanship of all ORBIT products result in years of
dependable operation.

Gas testing and certification to the latest industry standards is
performed by independent inspectors.

Certifications for hydrostatic test results and material
properties are available on request.

The Little Rock facility has undergone a new layout
reorganization and CAPEX investment in state-of-the-art
equipment.

Every ORBIT valve built is individually pressure tested to meet
or exceed industry standards.

ORDERING INFORMATION
This brochure illustrates some of the commonly requested
ORBIT instrumentation packages available from Cameron. If
you find that one or more of these packages are suitable for
your needs, they can be ordered by the assembly package
number (preceded by the letter “A”) found under the
assembly package title. We will custom design
instrumentation packages based on your specific
requirements. You may list your requirements or simply mark
your changes on the most appropriate schematic drawing
found in this brochure. If you have special needs or have
developed your own automated systems, Cameron will work
with you to produce custom packages for a wide variety of
control systems. Cameron has engineers and technicians
skilled in instrumentation and valve automation. They are
ready to work to design and build the proper system for you.
Contact a Cameron representative for more information.

UNIT RESPONSIBILITY
Purchasing the entire package from Cameron is simple,
convenient and economical. Only one purchase order needs
to be written, reducing paperwork, time and other potential
problems such as multiple shipments and customs
clearances. You are assured all components work together.
Assembly is done by full-time automation specialists, with
the unit fully tested before leaving the factory, and the
package is generally less expensive than purchasing
individual components separately.

VALV E S & MEA S U R E M E N T

Systems for Spring-Close Actuators
PNEUMATIC SIGNAL TO OPEN, FAIL CLOSE ON LOSS OF SIGNAL – A-12100*
The pneumatic signal activates the threeway, normally closed, pneumatic-operated,
spring-return valve, allowing supply pressure
to move the actuator and valve to the open
position. The opening speed is controlled by
adjusting the flow control.

Loss of the pneumatic signal returns the
three-way valve to the normally closed
position, allowing the actuator and valve to
spring close. The closing speed is controlled
by adjusting the bleed control. Set pressure
of the filter regulator is in accordance with
the operating pressure indicated on the
actuator’s nameplate.

* Fail action also will occur if the supply pressure is completely lost (drops to 0 psig).
SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

Systems for Spring-Close Actuators
ELECTRIC SIGNAL TO OPEN, FAIL CLOSE ON LOSS OF SIGNAL – A-12101*
The electric signal activates the three-way,
normally closed, solenoid-operated, springreturn valve, allowing supply pressure to
move the actuator and valve to the open
position. The opening speed is controlled by
adjusting the flow control.

Loss of the electric signal returns the
three-way valve to the normally closed
position, allowing the actuator and valve to
spring close. The closing speed is controlled
by adjusting the bleed control. Set pressure
of the filter regulator is in accordance with
the operating pressure indicated on the
actuator’s nameplate.

* Fail action will also occur if the supply pressure is completely lost (drops to 0 psig).
A-12842 is required if a small-ported solenoid valve (less than 1/8”) is used. See page 12.

SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

VALV E S & MEA S U R E M E N T

ELECTRIC SIGNAL TO OPEN, FAIL CLOSE ON LOSS OF SIGNAL OR
SUPPLY PRESSURE – A-12103*
The electric signal activates the three-way,
normally closed, solenoid-operated, springreturn valve, allowing supply pressure to move
the actuator and valve to the open position.
The opening speed is controlled by adjusting
the flow control.

Loss of the electric signal returns the three-way
valve to the normally closed position, allowing
the actuator and valve to spring close. The
closing speed is controlled by adjusting the
bleed control. Set pressure of the filter
regulator is in accordance with the operating
pressure indicated on the actuator’s nameplate.

To allow the actuator to fail close on loss of
supply pressure, a three-way switching valve is
set 10 psi (0.7 bar) below the maximum
operating pressure. When pressure at port “D”
is above the set point, ports “A” and “B” are
connected and port “C” is blocked. When
pressure at port “D” falls below the set point,
ports “A” and “C” are connected and port
“B” is blocked, exhausting pressure, allowing
the actuator and valve to spring close.

* For the pneumatic signal, order A-12102. A-12842 is required if a small-ported solenoid valve (less than 1/8”) is used. See page 12.
SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

ELECTRIC SIGNAL TO OPEN, FAIL CLOSE ON LOSS OF SIGNAL OR
SUPPLY PRESSURE – A-12842*
The electric signal activates the three-way,
normally closed, direct-acting solenoid valve,
allowing supply pressure to switch the
three-way switching valve. This action
connects ports “A” and ”B”, allowing the
supply pressure to move the actuator to the
open position. The opening speed is
controlled by adjusting the flow control.

Loss of the electric signal moves the threeway, normally closed, direct-acting solenoid
valve to the normally closed position. This
action vents the supply pressure from the
three-way switching valve and connects
ports “A” and “C”, while blocking port
“B”. The supply pressure is then vented
from the actuator, allowing it to spring
close. The closing speed is controlled by
adjusting the bleed control. Set pressure of
the filter regulator is in accordance with the
operating pressure indicated on the
actuator’s nameplate.

To allow the actuator to fail close on loss of
supply pressure, a three-way switching valve
is set 10 psi (0.7 bar) below the maximum
operating pressure. When pressure at port
“D” is above the set point, ports “A” and
“B” are connected and port “C” is blocked,
allowing the actuator and valve to open.
When pressure at port “D” falls below set
points, ports “A” and “C” are connected
and port “B” is blocked, allowing the
actuator and valve to spring close.

* For a fail-open system (same controls on the spring-open actuator), order A-12864. A-12842 (fail close) or
A-12864 (fail open) is required if a small-ported solenoid valve (less than 1/8”) is used.

SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

VALV E S & MEA S U R E M E N T

ELECTRIC SIGNAL TO OPEN, FAIL CLOSE ON LOSS OF SIGNAL,
MANUAL RESET TO OPEN – A-12338*
The ORBIT valve is opened by manually
moving the lever of the three-way solenoid
valve to the latched position. If a no voltagerelease type reset is furnished, the solenoid
must be energized before this can be done.
The opening speed is controlled by adjusting
the flow control.

The electric signal activates the three-way,
normally closed, solenoid-operated, springreturn valve, allowing supply pressure to
move the actuator and valve to the open
position. The opening speed is controlled by
adjusting the flow control.

* For a pneumatic signal, order A-12102. A-12842 is required if a small-ported solenoid valve (less than 1/8”) is used. See page 12.
SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

PNEUMATIC SIGNAL TO OPEN, FAIL CLOSE ON LOSS OF SIGNAL OR SUPPLY PRESSURE,
MANUAL RESET TO OPEN – A-14741
The ORBIT valve is opened by manually
moving the lever of the three-way pilot
valve to the latched position, and it is kept
open with a pneumatic signal. The opening
speed is controlled by adjusting the flow
control valve.

Loss of pneumatic signal returns the
three-way pilot valve to the normally closed
position, allowing the actuator to spring
close. The ORBIT valve cannot be reopened
until the three-way pilot valve is manually
reset. The closing speed is controlled by
adjusting the bleed control in the exhaust
port of the three-way valve. Set point of the
filter regulator is the operating pressure
stamped on the actuator’s nameplate.

To allow the actuator to fail close on loss of
supply pressure, a three-way switching valve
is set about 10 psi (0.7 bar) below the
maximum operating pressure. When
pressure at port “D” is above the set point,
ports “A” and “B” are connected and port
“C” is blocked. When pressure at port “D”
falls below the set point, ports “A” and “C”
are connected and port “B” is blocked,
exhausting pressure, allowing the actuator
and valve to spring close.

SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

VALV E S & MEA S U R E M E N T

ELECTRIC SIGNAL TO OPEN, FAIL CLOSE ON LOSS OF SIGNAL OR SUPPLY PRESSURE,
MANUAL RESET TO OPEN – A-12291
The ORBIT valve is opened by manually
moving the lever of the three-way solenoid
valve to the latched position. If a no voltagerelease type reset is furnished, the solenoid
must be energized before this can be done.
The opening speed is controlled by adjusting
the flow control valve.

Loss of electric signal returns the three-way
solenoid valve to the normally closed
position, allowing the actuator to spring
close. The ORBIT valve cannot be reopened
until the three-way solenoid valve is
manually reset. The closing speed is
controlled by adjusting the bleed control in
the exhaust port of the three-way pilot
valve. Set point of the filter regulator is the
operating pressure stamped on the
actuator’s nameplate.

SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

HIGH-PRESSURE SHUTDOWN SYSTEM – A-12755
When the line pressure is below the set
point of the pressure sensor, the supply
pressure is directed through the pressure
sensor to the pilot of the three-way valve.
By pulling the palm button on the three-way
valve, the supply pressure is directed to the
bottom of the actuator to open the
ORBIT valve.

When the line pressure rises above the set
point of the pressure sensor, the supply
pressure is blocked and the pressure is
vented from the pilot of the three-way valve.
The three-way valve spring returns, which
blocks supply pressure, vents the pressure
from the actuator and allows the actuator to
spring close. The closing speed is controlled
by adjusting the flow control.

The optional multi-port, shut-off valve may
be used to isolate the line pressure and
provide a means of testing or readjusting
the pressure sensor while in service or to
serve as a gauge valve. Pressure sensors and
multi-port, shut-off valves require field
installation, and lines denoted by
are to be
//
//
//
provided and piped by the customer.
Set point of the filter regulator is the
operating pressure stamped on the
actuator’s nameplate.

NORMAL LINE PRESSURE

AIR PRESSURE

HIGH LINE PRESSURE

AIR EXHAUST

VALV E S & MEA S U R E M E N T

LOW-PRESSURE SHUTDOWN SYSTEM – A-13526*
When the line pressure is above the set point
of the pressure sensor, the supply pressure is
directed through the pressure sensor to the
pilot of the three-way valve. By pulling the
palm button on the three-way valve, the
supply pressure is directed to the bottom of
the actuator to open the ORBIT valve.

When line pressure falls below the set point
of the pressure sensor, the supply pressure is
blocked and the pressure is vented from the
pilot of the three-way valve. The three-way
valve spring returns, which blocks supply
and pressure, vents the pressure from the
actuator and allows the actuator to spring
close. The closing speed is controlled by
adjusting the flow control.

The optional multi-port, shut-off valve may
be used to isolate the line pressure and
provide a means of testing or readjusting the
pressure sensor while in service or to serve as
a gauge valve. Pressure sensor and multiport, shut-off valves require field installation,
and lines denoted by
//
//
//
are to be provided and piped by the
customer. Set point of the filter regulator is
the operating pressure stamped on the
actuator’s nameplate.

* For a high-low-pressure shutdown system, order A-12385. A high-low sensor pair will be provided.
NORMAL LINE PRESSURE

AIR PRESSURE

HIGH LINE PRESSURE

AIR EXHAUST

Systems for Spring-Open Actuators
ELECTRIC SIGNAL TO CLOSE, FAIL OPEN ON LOSS OF SIGNAL – A-12682*
The electric signal activates the three-way,
normally closed, solenoid-operated, springreturn valve, allowing supply pressure to
move the actuator and valve to the closed
position. The closing speed is controlled by
adjusting the flow control.

Loss of electric signal returns the three-way
valve to the normally closed position,
allowing the actuator and valve to spring
open. The opening speed is controlled by
adjusting the bleed control. Set pressure of
the filter regulator is in accordance with the
operating pressure indicated on the
actuator’s nameplate.

* Fail action will occur if supply pressure is completely lost (drops to 0 psig). A-12864 is required if a small-ported solenoid valve (less that 1/8”) is used.
See page 12. For a pneumatic signal, order A-12306.

SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

VALV E S & MEA S U R E M E N T

ELECTRIC SIGNAL TO CLOSE, FAIL OPEN ON LOSS OF SIGNAL OR
SUPPLY PRESSURE – A-12455*
The electric signal activates the three-way,
normally closed, solenoid-operated, springreturn valve, allowing supply pressure to
move the actuator and valve to the closed
position. The closing speed is controlled by
adjusting the flow control.

To allow the actuator to fail open on loss of
supply air, a three-way switching valve is set
to 10 psi (0.7 bar) below the maximum
operating pressure. When pressure at port
“D” is above the set point, ports “A” and
“B” are connected and port “C” is blocked.
When pressure at port “D” falls below the
set point, ports “A” and “C” are connected
and port “B” is blocked, allowing the
actuator and valve to spring open.

* For a pneumatic signal, order A-12309. A-12864 is required if a small-ported solenoid valve (less than 1/8”) is used. See page 12.
SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

Systems for Double-Acting Actuators
PNEUMATIC SIGNAL TO OPEN, FAIL CLOSE ON LOSS OF SIGNAL – A-12104*
The pneumatic signal activates the four-way,
two-position, pneumatic-operated, springreturn valve, allowing supply pressure to
move the actuator and valve to the open
position. The opening speed is controlled by
adjusting the bleed control.

Loss of pneumatic signal returns the four-way
valve to the normal position, allowing the
actuator and valve to close. The closing speed
is controlled by adjusting the bleed control.
Set pressure of the filter regulator is in
accordance with the operating pressure
indicated on the actuator’s nameplate.

* For an electric signal, order A-12105. For a fail open and pneumatic signal, order A-12741. For a fail open and electric signal, order A-13666.

SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

VALV E S & MEA S U R E M E N T

ELECTRIC SIGNAL TO OPEN, FAIL CLOSE ON LOSS OF SIGNAL – A-12107*
The electric signal activates the four-way,
two-position, electric, solenoid-operated,
spring-return valve, allowing supply pressure
to move the actuator and the valve to the
open position. The opening speed is
controlled by adjusting the bleed control.

Loss of electric signal returns the four-way
valve to the normal position, allowing the
actuator and valve to close. The closing speed
is controlled by adjusting the bleed control.
Set pressure of the filter regulator is in
accordance with the operating pressure
indicated on the actuator’s nameplate.
To operate the manual mechanism, pressure
is relieved from the actuator with a threeway, manually-operated valve.
For override operation, see page 33.

* For a pneumatic signal, order A-12106. For a fail open and pneumatic signal, order A-12978. For a fail open and electric signal, order A-12413.
SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

PNEUMATIC SIGNAL TO OPEN, FAIL CLOSE ON LOSS OF SIGNAL OR
SUPPLY PRESSURE – A-12108*
The pneumatic signal activates the four-way,
two-position, pneumatic-operated, springreturn valve, allowing supply pressure to
move the actuator and valve to the open
position. The opening speed is controlled by
adjusting the bleed control.

Loss of pneumatic signal returns the
four-way valve to the normal position,
allowing supply pressure to move the
actuator and valve to the closed position.
The closing speed is controlled by adjusting
the bleed control.
Set pressure of the filter regulator is in
accordance with the operating pressure
indicated on the actuator’s nameplate.

To allow the actuator to fail close on loss of
supply air, a three-way switching valve is set
to 10 psi (0.7 bar) below the maximum
operating pressure. When pressure at port
“D” is above the set point, ports “A” and
“B” are connected, allowing the pneumatic
signal to activate the four-way valve. When
pressure at port “D” falls below the set
point, ports “A” and “C” are connected
and port “B” is blocked, preventing the
pneumatic signal from activating the
four-way valve and exhausting signal air
from the four-way valve. The accumulator
and check valves provide adequate supply
pressure to close the valve on loss of supply
pressure.

* For a fail close on an actuator with manual mechanism, order A-12109. For a fail open, order A-12677. For a fail open on an actuator with manual mechanism,
order A-12702. These assemblies require a pressure reserve tank (accumulator, volume tank), which is ordered separately.

SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

VALV E S & MEA S U R E M E N T

ELECTRIC SIGNAL TO OPEN, FAIL CLOSE ON LOSS OF SIGNAL OR
SUPPLY PRESSURE – A-12276*
The electric signal activates the three-way,
normally closed, solenoid-operated springreturn valve, allowing supply pressure to
activate the four-way, two-position,
pneumatic-operated, spring-return valve,
which allows supply pressure to move the
actuator and valve to the open position. The
opening speed is controlled by adjusting the
bleed control.

Loss of electric signal returns the three-way
valve to the normal position, relieving
pressure from the four-way valve, allowing
the actuator and valve to move to the closed
position. The closing speed is controlled by
adjusting the bleed control. Set pressure of
the the filter regulator is in accordance with
the operating pressure indicted on the
actuator’s nameplate.

To allow the actuator to fail close on loss of
supply pressure, a three-way switching valve
is set to 10 psi (0.7 bar) below the maximum
operating pressure. When pressure at port
“D” is above the set point, port “A” and
“B” are connected, allowing the pneumatic
signal to activate the four-way valve. When
pressure at port “D” falls below the set
point, ports “A” and “C” are connected
and port “B” is blocked, preventing the
supply pressure from activating the four-way
valve and exhausting signal air from the
four-way valve. The accumulator and check
valve provide adequate supply pressure to
close the valve on loss of supply pressure.

* These assemblies require a pressure reserve tank (accumulator, volume tank), which is ordered separately.
SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

ELECTRIC SIGNAL TO OPEN, FAIL CLOSE ON LOSS OF SIGNAL
OR SUPPLY PRESSURE – A-12299*
The electric signal activates the three-way,
normally closed, solenoid-operated, springreturn valve, allowing supply pressure to
activate the four-way, two-position,
pneumatic-operated, spring-return valve,
which allows supply pressure to move the
actuator and valve to the open position. The
opening speed is controlled by adjusting the
bleed control.

Loss of electric signal returns the three-way
valve to the normal position, relieving
pressure from four-way valve, returning it to
the normal position, allowing the actuator
and valve to move to the closed position.
The closing speed is controlled by adjusting
the bleed control. Set pressure of the filter
regulator is in accordance with the operating
pressure indicated on the actuator’s
nameplate. To operate the manual
mechanism, pressure is relieved from the
actuator with the three-way manually
operated valve.
For override operation, see page 33.
To allow the actuator to fail close on loss of
supply pressure, a three-way switching valve
is set to 10 psi (0.7 bar) below the maximum
operating pressure. When pressure at port
“D” is above the set point, ports “A” and
“B” are connected, allowing the supply
pressure to activate the four-way valve.
When pressure at port “D” falls below the
set point, ports “A” and “C” are connected
and port “B” is blocked, preventing the
supply pressure from activating the four-way
valve and exhausting signal air from the
four-way valve. The accumulator and check
valve provide adequate supply pressure to
close the valve on loss of supply pressure.
* These assemblies require a pressure reserve tank (accumulator, volume tank), which is ordered separately.

SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

VALV E S & MEA S U R E M E N T

PNEUMATIC SIGNAL TO OPEN, FAIL CLOSE ON LOSS OF SIGNAL
OR SUPPLY PRESSURE, MANUAL RESET TO OPEN – A-13860
The ORBIT valve is opened by manually
moving the lever of the four-way valve
to the latched position, and it is kept open
with a pneumatic signal (routed through
a three-way switching valve). The opening
speed is controlled by adjusting the
bleed control.

Loss of pneumatic signal makes the fourway valve spring return and directly supply
pressure to the top of the actuator to close
the ORBIT valve. The four-way valve must be
manually reset to re-open the ORBIT valve.
The closing speed is controlled by adjusting
the bleed control.

To allow the actuator to fail close on loss of
supply pressure a three-way switching valve is
set to 10 psi (0.7 bar) below the maximum
operating pressure. When pressure at port
“D” is above the set point, ports “A” and
“B” are connected, allowing the pneumatic
signal to activate the four-way valve. When
pressure at port “D” falls below the set
point, ports “A” and “C” are connected and
port “B” is blocked, preventing the
pneumatic signal from activating the fourway valve, and exhausting signal air from the
four-way valve. The accumulator and check
valve provide adequate supply pressure to
close the valve on loss of supply pressure.

SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

ELECTRIC SIGNAL TO OPEN, FAIL CLOSE ON LOSS OF SIGNAL
OR SUPPLY PRESSURE, MANUAL RESET TO OPEN – A-12719
The ORBIT valve is opened by manually
moving the lever on the three-way solenoid
valve to the latched position with the
solenoid energized. When shifted, the
three-way valve applies a pneumatic signal
to the pilot of the four-way valve, which
directs supply pressure to the bottom of the
actuator to open the ORBIT valve. The
opening speed is controlled by adjusting the
bleed control.

Loss of electric signal returns the three-way
solenoid valve to the normally closed
position and vents the pneumatic signal
from the pilot of the four-way valve. The
four-way valve shifts and directs supply
pressure to the top of the actuator to close
the ORBIT valve. The manual latch on the
three-way solenoid valve trips on the loss of
the signal and must be manually reset to
re-open the ORBIT valve. The closing speed
is controlled by adjusting the bleed control.

To allow the actuator to fail close on loss of
supply pressure, a three-way switching valve
is set to 10 psi (0.7 bar) below the maximum
operating pressure. When pressure at port
“D” is above the set point, ports “A” and
“B” are connected, allowing the supply
pressure to activate the four-way valve.
When pressure at port “D” falls below the
set point, ports “A” and “C” are connected
and port ”B” is blocked, preventing the
supply pressure from activating the four-way
valve and exhausting signal air from the
four-way valve. The accumulator and check
valve provide adequate supply pressure to
close the valve on loss of supply pressure.

SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

VALV E S & MEA S U R E M E N T

ELECTRIC SIGNAL TO OPEN, FAIL CLOSE ON LOSS OF SIGNAL
OR SUPPLY PRESSURE – A-12345*
The electric signal activates the three-way,
normally closed, solenoid-operated, springreturn valve, allowing supply pressure to
switch the four-way, two-position,
pneumatic-operated, spring-return valve,
which allows supply pressure to move the
actuator and valve to the closed position.
The closing speed is controlled by adjusting
the bleed control.

Loss of electric signal returns the three-way
valve spring to the normally closed position.
This action allows the four-way valve to
spring return, allowing the actuator and
valve to move to the open position. The
opening speed is controlled by adjusting the
bleed control. Set pressure of the filter
regulator is in accordance with the
operating pressure indicated on the
actuator’s nameplate.

To allow the actuator to fail open on loss of
supply pressure a three-way switching valve is
set to 10 psi (0.7 bar) below the maximum
operating pressure. When pressure at port
“D” is above the set point, ports “A” and
“B” are connected, allowing the pneumatic
signal to activate the four-way valve. When
pressure at port “D” falls below the set
point, ports “A” and “C” are connected and
port “B” is blocked, preventing the
pneumatic signal from activating the fourway valve, and exhausting signal air from the
four-way valve. The accumulator and check
valve provide adequate supply pressure to
open the valve on loss of supply pressure.

* These assemblies require a pressure reserve tank (accumulator, volume tank), which is ordered separately. For an actuator with manual mechanism,
order A-12680.
SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

ELECTRIC SIGNAL TO OPEN AND CLOSE, FAIL IN POSITION
ON LOSS OF SIGNAL – A-12111*
The electric signal to solenoid “A” activates
the four-way, two-position, dual, solenoidoperated valve, allowing supply pressure to
move the actuator to the valve open
position. On loss of signal, the four-way
valve remains in the same position. The
opening speed is controlled by adjusting the
bleed control.

The electric signal to solenoid “B” activates
the four-way valve, allowing supply pressure
to move the actuator and valve to the closed
position. On loss of signal, the four-way valve
remains in the same position. The closing
speed is controlled by adjusting the bleed
control. Set pressure of the filter regulator is
in accordance with the operating pressure
indicated on the actuator’s nameplate.

* For a pneumatic signal, order A-12110. For a pneumatic signal on an actuator with manual mechanism, order A-12112. For an electric signal using a
single-exhaust solenoid, order A-13289. For an electric signal on an actuator with manual mechanism, order A-12113. For an electric signal using exhaust
solenoid on an actuator with manual mechanism, order A-12814. Refer to A-14983 (pages 33-34) for the typical single-exhaust solenoid flow pattern.

SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

VALV E S & MEA S U R E M E N T

ELECTRIC SIGNAL TO OPEN AND CLOSE, FAIL IN POSITION
ON LOSS OF SIGNAL OR SUPPLY PRESSURE – A-12115*
The electric signal to solenoid “A” activates
the four-way valves, allowing supply
pressure to move the actuator and valve to
the open position. On loss of signal, the
four-way valve will remain in position. The
opening speed is controlled by adjusting the
bleed control.

The electric signal to solenoid “B” activates
the four-way, two-position, dual, pilotoperated valve, allowing supply pressure to
move the actuator valve to the closed
position. On loss of signal, the four-way
valve will remain in position. The closing
speed is controlled by adjusting the bleed
control. Set pressure of the filter regulator is
in accordance with the operating pressure
indicated on the actuator’s nameplate.

(Continued on next page.)

*For a pneumatic signal, order A-12114.
SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

ELECTRIC SIGNAL TO OPEN AND CLOSE, FAIL IN POSITION
ON LOSS OF SIGNAL OR SUPPLY PRESSURE – A-12115*
To allow the actuator to fail in position, a
three-way switching valve is set to 10 psi (0.7
bar) below the maximum pressure. When the
maximum operating pressure at port “D” is
above the set point, ports “A” and “B” are
connected and port “C” is blocked. When
pressure at port “D” falls below set points,
port “A” and “C” are connected and port
“B” is blocked. If the actuator is in the valve’s
open position when port “B” is blocked, the
valve will remain open. If the valve is in the
closed position when port “B” is blocked,
the valve will remain closed.

* For a pneumatic signal, order A-12114.

SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

VALV E S & MEA S U R E M E N T

ELECTRIC SIGNAL TO OPEN AND CLOSE, FAIL IN POSITION
ON LOSS OF SIGNAL OR SUPPLY PRESSURE – A-12117*
The electric signal to solenoid “A” activates
the four-way valve, allowing supply pressure
to move the actuator and valve to the open
position. On loss of signal, the four-way valve
will remain in position. The opening speed is
controlled by adjusting the bleed control.

(Continued on next page.)

* For a pneumatic signal, order A-12116.
NORMAL LINE PRESSURE

AIR PRESSURE

HIGH LINE PRESSURE

AIR EXHAUST

ELECTRIC SIGNAL TO OPEN AND CLOSE, FAIL IN POSITION
ON LOSS OF SIGNAL OR SUPPLY PRESSURE – A-12117*
To allow the actuator to fail in position
on loss of supply pressure, a three-way
switching valve is set to 10 psi (0.7 bar)
below the maximum operating pressure.
When pressure at port “D” is above set
points, ports “A” and “B” are connected
and port “C” is blocked. When operating
pressure falls below the set point, ports
“A” and “C” are connected and port
“B” is blocked. If the actuator is in the
valve’s open position when port “B” is
blocked, the valve will remain open. If
the actuator is in the valve’s closed position
when port “B” is blocked, the valve will
remain in the closed position.

* For a pneumatic signal, order A-12116.

SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

VALV E S & MEA S U R E M E N T

ELECTRIC SIGNAL OR SUPPLY PRESSURE, SINGLE-EXHAUST
SOLENOID – A-14983*
The electric signal to solenoid “A” of the
four-way valve directs supply pressure to the
top of the actuator to close the ORBIT valve.
The closing speed is controlled by adjusting
the flow control. The electric signal may be
continuous or momentary. The four-way
valve and ORBIT valve will remain in position
on loss of signal.

The electric signal to solenoid “B” of the
four-way valve directs supply pressure to the
bottom of the actuator to open the ORBIT
valve. The opening speed is controlled by
adjusting the flow control. Set point of the
filter regulator is the operating pressure
stamped on the actuator’s nameplate.

(Continued on next page.)

* For an actuator with manual mechanism, order A-12946.
SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

ELECTRIC SIGNAL OR SUPPLY PRESSURE, SINGLE-EXHAUST SOLENOID – A-14983*
To allow the actuator to fail in position on
loss of supply pressure, a three-way
switching valve is set to 10 psi (0.7 bar)
below the maximum operating pressure.
When pressure at port “D” is above set
points, ports “A” and “B” are connected
and port “C” is blocked. When operating
pressure falls below the set point, ports
“A” and “C” are connected and port “B”
is blocked. If the actuator is in the valve’s
open position when port “B” is blocked,
the valve will remain open. If the actuator
is in the valve’s closed position when port
“B” is blocked, the valve will remain in the
closed position.

* For an actuator with manual mechanism, order A-12946.

SIGNAL ON

AIR PRESSURE

SIGNAL OFF

AIR EXHAUST

VALV E S & MEA S U R E M E N T

OVERRIDE OPERATION
To operate the manual override
mechanism, on packages so equipped, you
must relieve pressure from the actuator by
use of the three-way valves. Only one
three-way valve is to be operated at any
one time. The valve to be operated is
determined by the position of the actuator.
If the valve is to be locked into an already
cycled position by using the manual
mechanism, operating the three-way
valves is not required.
AIR PRESSURE
AIR EXHAUST

Information Required to Order Pneumatic Automated Systems Other Than Standard Packages
1.

Valve Size, Rating and Trim

Full or Reduced Port

End Connection

ctuator Type: Double-acting, Spring-close
A
or Spring-open

anual Override: None Required, One-way or
M
Two-way

11. S ignal: Single or Dual
If Electric: Voltage DC or AC, Phase, Hz
If Pneumatic: Control Signal Pressure
12. Material:
Tubing – Stainless Steel, Copper, Other; Components
(i.e., Solenoid Valve, Switching Valve) – Brass,
Stainless Steel, Other

Position of Valve Stem: Vertical or Horizontal

13. Electrical Area Classification and Required Approvals
or Listings

Operating Source (Air or Gas) and Pressure

14. Other System Requirements

Speed of Operation in Seconds

15. L imit Switches: Open, Close, Other; Type CX,
Pneumatic, Proximity, Other

9. Maximum Differential Pressure Across Closed
Valve Applied from Preferred Pressure End and
From Seat End

16. N
umber of Contacts Required: In Open Position,
Closed Position, Other

10. T ype: Fail Close on Loss of Signal, Loss of Signal
and Supply or Other
T ype: Fail Open on Loss of Signal, Loss of Signal
and Supply or Other
Type: Fail in Position (Lock) on Loss of Signal, Loss
of Signal and Supply or Other
Type: Any Other Control System Information

ADAPTATION OF CX MICRO SWITCH TO ORBIT DIAPHRAGM
AND PISTON ACTUATORS
Diaphragm Actuators
Rod Bushing
Hose Clamp
Indicator Plate

Diaphragm Actuator Assembly
Mounting Bracket
Socket Set Screw

Rod Boot

Arm Clamp

Set Screw

Conduit Entry Plug

Actuating Clamp
Actuating Arm Guide

Micro Switch
Actuating Arm

Piston Actuators
Position Indicator
O-ring
Rod Bushing
Hose Clamp
Rod Boot
Indicator Plate
Set Screw
Actuating Clamp
Actuating Arm Guide

The Honeywell CX Micro Switch™ consists of a rugged
cast-aluminum housing with threaded cover and is built
especially for outdoor use in hazardous atmospheres.
CX switches are actuated by cams mounted on the shaft,
and the cams are individually adjustable to actuate each
switch element at any point in the stem travel. The CX
switch is offered standard with two or four single-pole
double-throw (SPDT) basic switches.
Only one conduit connection is required, and the switch
elements are readily replaceable without disturbing the
conduit. All the mounting screws are of generous size, so
the switch is not vulnerable to being knocked or pulled out
of position. The switches can be adjusted to operate as
near to the end of travel as desired.

Lower Cylinder Head
Mounting Bracket
Conduit Entry Plug
Socket Set Screw
Arm Clamp
Micro Switch
Actuating Arm
Conduit Entry Plug

The CX switch is weather-tight, rugged, adjustable, repairable,
and requires only one conduit connection for as many as four
circuits. It is UL listed, CSA approved, NEMA classified as
explosion-proof for hazardous locations, and is water-tight and
dust-tight for outside service.
The electrical rating is 20 amps at 125 or 250 AC and 0.5
amps at 125 DC. Hermetically sealed basic switches rated for 1
amp at 120 V AC and NEMA 4X housings also are available.
Micro-valves, proximity switches, intrinsically safe sensors and
other types of switches are available on request.

VALV E S & MEA S U R E M E N T

PROXIMITY TYPE LIMIT SWITCHES FOR ORBIT VALVES AND ACTUATORS
Diaphragm Actuators
Hose Clamp
Rod Bushing
Open Indicator Plate

Opening Proximity Switch

Indicator Bracket
Rod Boot
Position Indicator
Closed Indicator Plate

Proximity Switch Mounting Bracket
Pointer Clamp
Opening Activator
Closing Activator
Closing Proximity Switch

Piston Actuators

Hose Clamp
Rod Bushing
Open Indicator Plate
Indicator Bracket
Rod Boot
Closed Indicator Plate
Position Indicator

Opening Proximity Switch
Proximity Switch Mounting Bracket
Pointer Clamp
Opening Activator
Closing Activator
Closing Proximity Switch

Proximity limit switches are available for both manual and
automated ORBIT valves. They are totally enclosed,
hermetically sealed switches and are available with brass or
stainless steel housings for hazardous atmospheres. ORBIT
valves’ standard proximity switches include SPDT with
brass or stainless steel housings, or double-pole, doublethrow with stainless steel housings.

Standard assemblies include two switches; one for the
valve open position and one for the valve’s closed position.
Commonly used switches are FM- and CSA-approved for
Class 1, Division 1 hazardous locations. They are suitable
for -40° F to 250° F ( -40º C to 121º C) temperature range
and are rated for 10 amps at 125 V AC and 0.9 amps at
24 V DC.
35

CAMSERV Aftermarket Services for Valves and Actuation
™

WE BUILD IT. WE BACK IT.
Global Network and Local Support
Cameron is well-positioned to deliver total aftermarket support,
quickly and efficiently, with unmatched OEM expertise. Our
highly skilled engineers and technicians are available around the
clock, seven days a week, to respond to customer queries,
troubleshoot problems and offer reliable solutions.

Easily Accessible Parts and Spare Valves
• O
EM spare valves, actuators and parts
(including non-Cameron brands)
• Handling, storage, packaging and delivery
• Dedicated stocking program

Comprehensive Aftermarket Services Portfolio
• Parts and spare valves
• Repair
• Field services
• Preventative maintenance
• Equipment testing and diagnostics
• Remanufacturing
• Asset preservation
• Customer property management
• Training and recertification services
• Warranty

Customized Total Valve Care (TVC) Programs
SM

Customized asset management plans that optimize uptime,
availability and dedicated services.
• Engineering consultancy
• Site management
• Flange management
• Startup and commissioning
• Spare parts and asset management

USA • CANADA • LATIN AMERICA • EUROPE • RUSSIA • AFRICA • MIDDLE EAST • ASIA PACIFIC
36

VALV E S & MEA S U R E M E N T

3250 Briarpark Drive, Suite 300
Houston, TX 77042
USA
Toll Free 1 800 323 9160

For more information on ORBIT products:
www.c-a-m.com/ORBIT
ORBIT@c-a-m.com

ENVIRONME
N
XCELLEN
LE
CE
TA

TH SAFETY
AL
A
HE

HSE Policy Statement
At Cameron, we are committed ethically, financially and personally to a
working environment where no one gets hurt and nothing gets harmed.

MERON

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Title                           : Standard Instrumentation Packages for ORBIT Pneumatic Actuators
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Subject                         : Standard Instrumentation Packages for ORBIT Pneumatic Actuators
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Standard Instrumentation Packages For ORBIT Pneumatic Actuators

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