DYNATORQUE Gears And Automated Valve Accessories Brochure

User Manual: DYNATORQUE Gears and Automated Valve Accessories Brochure Resource Library

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DYNATORQUE Gears and Automated Valve Accessories
Delivering customer-focused solutions rapidly and economically

Cameron’s products have been known for
their reliability and durability, and now,
with DYNATORQUE gears and automated
valve accessories, the strength of these
technologies will provide customers with
an extended level of quality for which
there is no substitute.

F

or years, Cameron’s DYNATORQUE™ brand has been recognized as an innovator
in manufacturing technology, with commitments to quality and design that result

in a trustworthy and solid product portfolio.
The DYNATORQUE product line is a single-source
solution for both standard and customized gears
and automated valve accessories, including
declutchable and non-declutchable manual
overrides; the D-Stop™ automated valve partialstroke test device; the D-Lock™ automated valve
locking device; spur and miter gears; handwheels;
and ground position indicators.
To us, customer focus means our products are backed by our commitment to
customer needs:
• Customized products are no problem – accessing many different frame and
spur combinations, a wide variety of material options, one-off capability and
rapid turnaround
• Onsite static and dynamic-load test benches create DYNATORQUE gears that will
perform in trying real-world applications
• Attention to quality at every level of the manufacturing process – rigorous approval
standards for material sourcing, preproduction and postproduction inspections,
ISO certified, and randomly selected, measured and tested operators (for complete
technical information, please visit www.c-a-m.com/dynatorque)

1

Worm Gear Operators
Cameron’s DT Series worm gear operators are designed for use with
valves and dampers, as well as most other quarter-turn applications
requiring a self-locking mechanism. Our flexible manufacturing
process allows us to offer both standard construction and custom
configurations for customer-specific applications.
Standard operators are available with various mounting interface
dimensions. Custom-machined gears come with bores and bolt
holes for direct mounting to the valve. Standard materials are cast
gray or ductile iron, but the line also offers a varied selection of
alternate materials to meet customer application requirements.
For extremely corrosive applications, operators with external
components constructed of cast CF-8M stainless steel are available.
These operators are completely sealed and are ideal for applications
such as brewing, food processing, leaching operations, offshore
platforms and pulp and paper plants. Gear operators with stainless
steel internal parts also are available.

Bevel Gear Operators
The BG Series bevel gear operators provide smooth, even torque
transmission for thrust and non-thrust applications such as gate,
knife gate, pinch, sluice gate or globe valves. This line of operators
also can be used in almost any multi-turn, right-angle application
requiring mechanical advantage.

F E A T U R E S
• 16 different frame and spur combinations
provide output torque ranges from 4500 to
300,000 lb-in (500 to 33,900 N·m)
• Standard mounting dimensions or configured
to customer requirements
• Chainweel operation available on select
frame sizes
• Variable handwheel shaft lengths
• Optional models with 180- and 360-degree
multi-turn capabilities
• Marine, submerged and high- and lowtemperature applications
• Available with AWWA C-504 material and
design criteria

F E A T U R E S
• 20 different frame and spur combinations
provide output thrust of 22,000 to 150,000 lb
(98 to 667 kN) and torque output ranges up to
3500 ft-lb (4745 N·m)
• BG3 and BG6 have standard ISO 5211 mounting
patterns (optional patterns on request)
• Gearbox housing of ductile iron
• Investment-cast ductile iron bevel and pinion
gears for smooth, continuous transmission of
torque
• Optional bronze stem nuts for direct threaded
interfacing and lug drivers for existing valve
yoke nuts
• Motor mounts available for electric motor

2

Valve Locking Devices
The DYNATORQUE D-Lock automated valve locking device is used with
automated valves (pneumatic, hydraulic or electric) that require lock-out
capability to prevent valve rotation. This feature is ideal for applications
such as maintenance shutdowns, when the valve must remain in a
locked position even if an actuator is unintentionally engaged.
F E A T U R E S
• Holds valve in either open or closed position while compensating for
hysteresis and machining tolerances (select models provide both open
and closed locking)
• Ideal for torque-seated valves such as triple offset butterfly valves
• Applicable for almost any rotating device

Manual Overrides
Cameron’s DYNATORQUE automated valve manual overrides are used with
pneumatic, hydraulic and back-drivable electric actuators. These products
are sandwich mounted as part of an automated valve package to provide
manual operation of the automated valve if a loss of plant air supply,
power gas, hydraulic fluid power or electricity occurs.
F E A T U R E S
• Standard ISO 5211 mounting dimensions on top and bottom flanges or
custom machined for mounting to actuator and valve
• Device is transparent to valve operation when disengaged

S D

S er i es

F eatures

SD Series

• Suitable for either double-acting or spring-return actuators
• Nine different frame and spur combinations provide output torque ranges
from 3000 to 140,000 lb-in (340 to 15,815 N·m)
• One-handed declutch mechanism
• Declutchable override sandwich mounted between valve and actuator

S R D

S er i es

F eatures

• Alternative to SD Series for spring-return applications only
• 11 different frame and spur combinations provide output torque ranges
from 3000 to 140,000 ft-lb (340 to 29,375 N·m)
• Select frame sizes available with chainwheel option for spring-return
actuators in overhead locations

SRD Series

• Non-declutchable override sandwich mounted between valve and actuator

3

D-Stop Partial-Stroke Test Device
The DYNATORQUE D-Stop device is one of the world’s premier
mechanical devices for partial-stroke testing of installed critical service
valves, such as emergency shutdown valves (ESDVs), while the valves
are flowing process fluids and full-stroke valve testing is not practical.

How It Works
The D-Stop device has two internal cams. During normal valve
operation, the D-Stop device is disengaged and the actuator is free
to stroke the valve on demand. When the partial-stroke test is to be
performed, the stainless steel engagement key is inserted into the
D-Stop key socket.
A safety feature designed into the device forces an intentional,
two-handed operation in order to engage the D-Stop device. When
the safety release mechanism is pulled, the engagement cam is free
to rotate 90 degrees counterclockwise. Once the key is turned, it is
locked into the device and the engagement cam rotates. The device
is now engaged (see illustration below).
At this point, when the valve actuator is sent to the test position,
the drive cam that is attached to the actuator through the drive
coupling rotates until it comes into contact with the engagement
cam, normally 20 degrees (this is a specifiable value). Metal-tometal safety prevents the actuator from rotating past the set point.
A

L O O K

I N S I D E

The photo to the left is a DT1000 D-Stop in
factory assembly with the cover removed.
Note the D-Stop is not in the engaged position.
Cameron manufactures D-Stop devices up to
4,000,000 lb-in (451,939 N·m) capability.

The picture at the right shows the same DT1000 D-Stop, but with the device
now engaged. Standard travel is 20 degrees, but this value can be specified
to your unique requirements.

The photo to the left shows the D-Stop
device fully engaged with metal-to-metal
safety, preventing the valve from closing
during the test procedure.

4

D-Stop devices are built for both large and small
valves. This DT4000 D-Stop will fit between a large
pneumatic actuator and a 36” 600# ball valve
installed on an offshore platform.

D-Stop devices are modular: specify
local key operated or remote operated
with or without optional limit switches
to indicate “on-test /off-test.”

B E N E F I T S

O F

C A M E R ON ’ S

For additional information
on the D-Stop partial-stroke
test device, scan the QR code
with your smart phone or visit
www.c-a-m.com/dstop.

D Y N AT O R Q U E

D - S T O P

D E V I C E

Simple When it comes to testing systems, the

True Safety System Tests Because the D-Stop

temptation is to take what already might be a

device requires no extraneous controls when the

sophisticated automated valve system package and

valve is tested, all the actual SIS components, controls

make it even more complex by adding controls.

and elements used in an ESD or safety valve will be

With Cameron’s DYNATORQUE D-Stop device, it is

activated. You have information about the exact

not necessary to integrate into the control loop or

controls that will be relied upon to protect your plant

add ancillary controls, as is the case with electric

and personnel.

systems. It’s simple.

Built for a Demanding, Industrial Environment

Economical The basic cost of a D-Stop device,

The D-Stop device is vibration resistant. It is externally

depending on the torque requirement, is more

corrosion protected with coatings and independently

economical than an electric or controls-driven

certified to IP 67 to prevent water ingress. Stainless

system. Instrumentation personnel and software

steel trim is used for keys, shafts and sockets. The

programmers are not required to install the D-Stop

D-Stop device is permanently lubricated, factory sealed

device, lowering installation costs. Commissioning

and requires no routine maintenance.

or routine calibration of controls is not required
because there aren’t any. Most process plants have
qualified in-house mechanics or valve automation
centers nearby, and since there are no additional
controls required, installation cost savings can
be substantial.

SIL Capable The D-Stop device has been reviewed
by an independent third party and found to be SIL
capable. Email us at info-dyt@c-a-m.com for a copy
of our Failure Modes, Effects and Diagnostics Analysis
(FMEDA) for information such as Probability of Failure
on Demand (PDFavg) necessary to calculate SIL values
for your application.

5

Actuator-to-Valve Direct Interface
The complete DYNATORQUE line of automated valve accessory products – manual
overrides, partial-stroke test devices and valve locking devices – are suitable for use with
all styles of quarter-turn automated valve and damper packages. Actuators
can be powered by pneumatics, hydraulic oil or electric motors.
Common to all of these products is the direct interface mounting
concept; that is, the DYNATORQUE product fits between the
actuator and the valve (see below for an example of the
DYNATORQUE D-Stop). The actuator drives the valve open and closed
by means of a driver that connects the actuator to the valve stem. The driver and the
top and bottom of the device will be machined to custom fit your valve and actuator
combination or DYNATORQUE standard dimensions or ISO 5211 – you decide.

Any Actuator

D-Stop

Cameron’s DYNATORQUE automated valve accessories can be provided as a
component of a new automated valve or it can be field-retrofit to an existing
valve/actuator package. Just give us the dimensions and we will make it.
Driver

Any Rotary Valve

Cameron’s LEDEEN® actuator mounted on a DYNATORQUE D-Stop partial-stroke test device.

6

Spur and Miter Gears
Spur and miter gears are used in applications requiring a
non-self locking mechanical advantage or where a change
in input drive orientation is required. Both devices can be
used as add-on features to our worm and bevel
gears or can be purchased as standalone products.
S pur

Gear

Spur Gear

F eatures

M i ter

Gear

Miter Gear

F eatures

• Heavy-duty iron and steel components

• Heavy-duty iron and steel components

• Used with worm gear and bevel gear operators to allow
for reduction in handwheel sizing and handwheel rim pull
effort

• For use as a close-coupled gearbox that changes
handwheel input shaft direction on worm and bevel gears

• May be used independent of worm and bevel gears
with small non-rising stem gate and globe valves and
other non-self locking applications that require torque
multiplication. When used with small electric motor
operators, it provides a low-ratio, non-self locking
torque multiplier

• May be used to change shaft direction (90 degrees) on
any rotating device with compatible torque values and
interface dimensions

Handwheels

F E A T U R E S

A comprehensive line of handwheels is offered in 6”
through 48” diameters. Standard handwheels are
designed for use with our gear operators, and many
are available in either recessed or flat versions.

• 6” to 10” handwheels are recessed, cast duct iron
•1
 2” to 18” handwheels are manufactured from tubing
and are available in standard recessed and optional
flat configurations, as well as in stainless steel
• Tubular handwheels are epoxy powder coated
• Cast handwheels are e-coated
• Additional diameters and interface machining
available

F E A T U R E S
• Allows mounting of the chainwheel directly to the operator-input
shaft rather than the rim of a handwheel
• Design reduces the amount of cantilever load on the operatorinput shaft and eliminates the need for a handwheel

Chainwheel Adapters
DYNATORQUE chainwheels are available
for applications where valve and operator
combinations are in locations
where direct handwheel
operation is not possible.

• Standard chainwheel construction is cast iron with many
optional materials available
• Fabricated of 1018 steel

7

Ground Position Indicators
The remote ground position indicators
are mechanical devices used to visually
indicate the position of a buried or
otherwise hidden valve. For example,
when a valve and gear are installed in
a buried service application, it may be
difficult (or impossible) to know if the
valve is open or closed.

F E A T U R E S
• Capable of exceeding 30,000 turns
• Ground-level window indicates valve open or closed
in bold red lettering
• Optional limit switches indicate valve position to
operator in a remote location
• GPIS offers sealed version
• Optional 2” square operating nuts, extension stems
and couplings

Memory Stop/Multi -Turn Worm Gears
A special traveling-nut module is added to the standard
DYNATORQUE worm gear, providing a highly adjustable
memory stop. Ideal for use when the driven device is used
for flow control and must
always be opened or
closed to the same
exact position.

8

F E A T U R E S
• Highly adjustable travel stops
• “Memory stop” device suitable for valves
and dampers
• Traveling nut module allows repeatable
valve travel to the predestinated set-point

World-Class Manufacturing
C ore capab i l i t i es
Cameron’s DYNATORQUE Manufacturing and
Service Facility – Muskegon, Mich., USA
• Manufacturing: 30,000 sq ft
• Warehouse: 20,000 sq ft
• Office: 6000 sq ft
• CNCs: 17
• Testing:
Dynamic up to 400,000 lb
Static up to 1,500,000 lb
• Lifting Capability: 2 ton (1), 1/2 ton (5)
• Quality Certifications: ISO 9001:2008
• Operational Since: 1984

9

Corporate Headquarters
3250 Briarpark Drive, Suite 300
Houston, TX 77042
USA
Tel 281 499 8511
Toll Free 1 800 323 9160

Sales/Ordering
2076 Northwoods Drive
Muskegon, MI 49442
USA
Tel 231 788 7025

For more information:
www.c-a-m.com/dynatorque
www.dynatorque.com
dynatorque @ c-a-m.com
Tel 231 788 7020

ENVIRONME
N
XCELLEN
LE
CE
TA

TH SAFETY
AL
A
HE

ND

CA

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

©2013 Cameron | DYNATORQUE, D-Lock and D-Stop are trademarks of Cameron. LEDEEN is a registered trademark of Cameron. | SWP 1.5M 6/13 AD00706V



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