BR RO SUBSEA REV 8 TR (web) Ring O Valves And Actuators For Service

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ENGINEERED VALVES

RING-O® Valves and Actuators
for Subsea Service

®

RING-O

ENGINEERED VALVES

90 m

WESTNATUNA
(Indonesia)
2000 100 m
EKOFISK II
(Norway)
1996 110 m
OSEBERG
(Norway)
1995

150 m

TOMMELITEN
(Norway)
1988

160 m
BERYL
(UK)
1991

300 m

VIGDIS
(Norway)
1995

Ring-O is a part of the
Cameron's Valves and
Measurement group
Engineered Valves division.
Ring-O has a long history
of engineering and
manufacturing
state-of-the-art subsea
valves and actuators
to a demanding
industry
worldwide.
Beginning
in 1985
Ring-O has
engineered
purpose
designed valves utilizing
the most current design
technology to provide
reliable solutions to the
challenging environment
of subsea pipelines and
manifold applications.
Ring-O offers a range of
valves for subsea service,
including ball, gate and
check valves.

380 m

KRISTIN
(Norway)
2002

380 m

NORNE
(Norway)
1994

Innovative design
systems supported
by Finite Element
Analysis ensures
that Ring-O is
always on
the leading
edge of
technology.
Paired with
the Industry's
most advanced hyperbaric
test facilities Ring-O provides
field proven reliable solutions
for subsea applications.
The advanced design systems
utilize the latest material
solutions and corrosion
resistant alloys and coatings
produced in one of the
world's most modern
manufacturing facilities.

700 m

ORMEN
LANGE
(Norway)
2004

1000 m

SCARAB &
SAFFRON
(Egypt)
2001

2500 m

GIRASSOL
(Angola)
1998

DEEPSTAR
STUDY
1999

ENGINEERED VALVES

SUBSEA SERVICE
In 1999 Ring-O installed one of the largest hyperbaric chambers in the
industry, designed to simulate water depths of up to 3000 meters.
The chamber dimensions are 2 meters in diameter and 6 meters high.
The maximum operating pressure is 300 BAR. Temperatures can be
reduced to 2°C and maintained for the duration of testing.
The chamber has three external connections of 1 inch BSP and 29
connections of 1/2 inch BSP and adequate space for
the standard equipment associated with hydraulic
actuation and test monitoring equipment. This
chamber enhances Ring-O's ability to meet the new
API 6D SS Specification on Subsea Pipeline Valves
which was adopted from ISO 14723. This standard
requires new design features, such as hyperbaric
testing and mandatory NDE.
The standard includes increased pressure testing
durations and mandatory documentation
requirements as well as a provision for supplemental
gas testing. Ring-O was issued and maintains the very first API 6D SS
license in the industry and is uniquely qualified as Cameron's Valves &
Measurement group Subsea Center for Excellence.
Ring-O has available all the hydraulic equipment, including a dedicated
Hydraulic Power Unit, lab kit and personnel to keep the fluid clean to
NAS 6 requirements.
Other test equipment is utilized as needed. Computers control sequential
operations (cycling tests) and record data variables.

SUBSEA DESIGN FEATURES
Subsea valve design is similar to equivalent topside valves, but has additional features to withstand the external
pressure caused by the column of seawater at operating depths.
Subsea Valves typically have a design life equal to the design life of the pipeline. This can be up to 40 years, and
valves placed in this type of service must be maintenance free for that lifetime. This is the most important design
feature of Ring-O Subsea Valves. Ring-O designs and manufactures Subsea Ball Valves and Gate Valves for both
pipeline and production applications.

Recommendations for Subsea Valves include the following design features:
Butt Weld Ends - use of butt weld end connections eliminates leak paths that flange valves may have.
Metal-to-Metal Sealing The seat to body seal of both ball valves and gate valves can be either soft seated or
Metal-to-Metal seated.
In critical subsea applications soft seated valves may become scratched by hard particles imbedded into the seat
inserts by the flowing media. Metal-to-Metal seats are less likely to be affected by this and most of Ring-O's subsea
valves feature Metal-to-Metal seats with sealing surfaces hardened by Tungsten Carbide or other hard faced
coatings.
Forged Valve Body and Bonnets - Ring-O valves utilize forgings for critical
body components because of the greater structural integrity over castings.
Manual ROV or Hydraulic Operators - Ring-O valves are fitted with purpose
built manual or hydraulic operators made by Ring-O for the specific
application requirements of the environment in which the valve will be used.
The operators are designed and manufactured by Ring-O and meet all API
and ISO standards required for ROV intervention. Because the
actuators are designed by Ring-O the integrity of the valve design
assembly can be tested and validated together through
qualification testing.
Pipeline
Termination Gas
Valve Skid comprising
of 16 inch 900 Top Entry
Ball and Check Valves.

RING-O®

BR-RO-SUBSEA
05/08 NP-5M

Qualification Testing - Ring-O has completed the most
comprehensive qualification testing in the industry.
Qualification Testing is offered to prove designs prior to
subsea deployment. The Ring-O facility is uniquely
qualified to carry out these test requirements in-house.

ENGINEERED VALVES

BALL VALVES
Additional recommendations for the specific use of ball valves for subsea applications:
• Trunnion Mounted Ball
The trunnion ball functions more reliably
than the seat supported floating ball.
• Top Entry Body Construction
The one-piece body reduces the number
of leak paths.

12 inch 1500
Top Entry Ball Valve
with Welded Pups
(TOGI Project, Norway).

• Welded Pups
When factory installed
prior to assembly, minimizes
the impact of heat on the
sealing areas when welding
the valve into the pipeline.

36 inch 900 Ball Valve with
Double Acting
Hydraulic Actuator
(Ekofisk II Project, Norway).
Double-Block 6 inch 1500
Top Entry Ball Valve
integrally made of forged
duplex stainless steel
(TOGI Project, Norway).

DEEP STAR STUDY
In 1999, as a voluntary contribution to
the joint effort for the development
of deep water technology. Ring-O
Valve was part of the Deep Star Study
project team set up to research and
develop equipment for operation in
over 10,000 feet of water in the Gulf
of Mexico.
Deep Star brought together the
industry’s leading experts in a
common multi-discipline forum to
address technical issues confronting
economically viable deepwater
production.
The Deep Star Study focused on
application of subsea and floating
production systems for the Gulf of
Mexico, however, much of the
technology has equal usage on a
worldwide basis.
Ring-O Valve contributed two valves
for examination and testing:
• 9 inch API 10,000 Through Conduit
Gate Valve with a Hydraulic Linear
Actuator.
• 9 inch API 10,000 Top Entry Ball Valve
with a Hydraulic Rotary Actuator.

6 inch 1500 3-Way Ball
Valve with Double Acting
Hydraulic Actuator and
ROV Interface
(Troll Project, Norway).

5-1/8 inch 740 BAR Gate
Valve for the Norwegian
Sector (Kristin/2002),
featuring a manual ROV
operated gear box with
stem extension.

ENGINEERED VALVES

GATE VALVES

Ring-O Gate Valves are designed to
meet API 6A or customer specifications.
Subsea Slab Gate Valves are used in
subsea manifold applications and for
isolation requirements.
They are available in soft seat or
Metal-to-Metal seat configurations and
can be manually, ROV or hydraulically
actuated.
Fully or partially clad valves are
available. This valve can be used in
critical topside applications.
Double Expanding Gate Valves feature a
"Bubble-Tight Double Expanding Gate"
design with Double-Block capability.

5 1/8 inch API 5,000
Gate Valve with ROV
Interface (Girassol
Project, West Africa).
9 inch API 10,000 Gate
Valve with Mechanical
Actuator for Manifold
Isolation (Lillefrigg
Project, Norway).
5 1/8 inch API 5,000
Gate Valve with
Hydraulic Actuator
and ROV Interface
(Laminaria & Corallina,
Australia).

ENGINEERED VALVES

ACTUATORS
Ring-O provides a broad line of quarter-turn and
linear actuators for subsea service to cover the
complete range of ball and gate valves with a wide
range of operating torques.

One-Quarter Turn
Double Acting
Hydraulic Actuator
with Planetary Gear
and ROV Interface.
One-Quarter Turn Single Acting
Spring Return Hydraulic Actuator
and ROV Interface.

ROV INTERFACE
When a valve is to be operated by a
Remote Operated Vehicle, an interface
receptacle is provided to meet the
client’s requirements.
The interface may be required for direct
drive of ROV actuated valves, as well as
for valves with actuators.
API 17D, which provides standards for
various intervention fixtures, may be
used as a reference.
The interface can be customized for
special torques and design loads with
extensions rods and vertical or
horizontal operation.

Single Acting Spring Return
Hydraulic Linear Actuator
and ROV Interface.

RING-O®

BR-RO-SUBSEA
05/08 NP-5M

ENGINEERED VALVES

90 m

ROLLER SKATE
(Australia)
100 m 1993
ETAP
(UK)
110 m 1997
BRAGE
(Norway)
120 m 1992
LILLEFRIGG
(Norway)
150 m 1992
SCOTT
(UK)
1992
Ring-O was granted and still

350 m

350 m

SNORRE
TROLL
(Norway) (Norway)
1999
1993/2000

420 m

LAMINARIA
& CORALLINA
(Australia)
1997

1000 m

ALBACORA,
ENCHOVA,
MARLIM,
RONCADOR,
NAMORADO
(Brazil)
1996/2001

1100 m

BONGA
(West Africa)
2002

1800 m

MARDI GRAS
(Gulf of Mexico)
2002

2000 m

BAOBOB
(Ivory Coast)
2003

3000 m
WATER
DEPTH

Ring-O also designs and
manufactures hydraulic
actuators, both linear
and one-quarter turn.
Both models are available
in single acting spring
return or double acting
for flexibility in designing
manifold and isolation
systems.
Ring-O has participated
in many industry studies
to push subsea technology
to deeper and deeper
water depths.

maintains license Number 1
from API for the new
API 6D SS (Subsea Pipe-line
Specification) insuring
compliance with customer
and industry standards for
subsea applications.
The Ring-O manufacturing
facility is located in Colico,
Italy, 100 kilometers north
of Milan, on the northeast
shore of Lake Como and is
Cameron's Valves and
Measurement group Center
for Subsea Excellence.
Ring-O is a brand with a
history of providing subsea
valves to the oil and gas
exploration sectors.
With Cameron's renowned
world reputation for quality
and investment in the latest
manufacturing technology,
Ring-O is poised to be the
leading supplier of subsea
valves for the future.
Other markets served include
oil and gas topside offshore
and onshore production and
transmission sectors,
petrochemical, refining, power
generation and nuclear as well
as other special service
industrial applications.

ENGINEERED VALVES

VALVES & MEASUREMENT
3250 Briarpark Drive, Suite 300
Houston, Texas 77042
USA Toll Free 800 323 9160
For the most current contact and location information go to: www.c-a-m.com/valvesandmeasurement

Printed in Canada 05/08-NP-5M BR-RO-SUBSEA



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