donkin gate valve solutions

Transcription

DONKIN
GATE VALVE
SOLUTIONS
AVK INNOVATION, QUALITY, EXPERIENCE
AVK AND DONKIN
RENOWNED WORLDWIDE
Manufacturing gas valves since 1847
As suppliers of the Donkin range of gas
valves worldwide, AVK UK Ltd is part of the
globally renowned AVK group based in over 80
countries. AVK is recognised around the world
as a leading innovator and manufacturer of high
quality valves and fittings for the gas, water,
waste water and fire fighting industries.
The home of the famous Donkin brand of gas
valves (which became part of the AVK group
in 1997) is today located in our state-of-theart factory in Chesterfield in the UK. Building
on more than 150 years of experience in
gas valves, we continue to keep customer
feedback, local market knowledge, component
quality and now environmental considerations
at the forefront of our design process.
2 | AVK DONKIN GATE VALVES
Our product specialists carry out the design
and development in our UK offices supported
by AVK group technical and engineering
resources based in our modern technology
centre in Denmark. Our products comply with
and exceed the highest standards of safety and
durability. Our products are Kitemark approved
to GIS standards for the UK market and our
extensive range also includes products which
comply with international standards such as
BS, EN, ISO CEN, DIN, ASA and many more.
Although renowned for our broad product offer,
our customers are not just buying products
from us; they are buying our expertise – our
ability to work with them to identify the best
solution for their unique needs.
INTRODUCING OUR EXTENSIVE RANGE OF GATE
VALVES TO SUIT ANY APPLICATION
In line with our commitment to deliver increased
value to our customers, AVK and Donkin
are the first manufacturers to introduce a
comprehensive and innovative range of gas gate
valves addressing the need to:
•
•
•
•
•
Offer a range of alternative product
solutions so the most cost effective option
can be used on each application.
Reduce the number of flanged joints
thereby reducing the risk of potential leak
paths.
Improve efficiency and reduce time spent
on installing valves.
Reduce the number of sub-components
used in valve installation and thereby the
need to hold multiple product stocks.
Improve the corrosion protection options
for buried service applications in a variety
of environments.
This brochure is designed
to present the variety of
options now available in
AVK and Donkin’s range
of gas gate valves so
our customers can take
informed decisions when
selecting the most suitable
product for the required
application. Each product
is designed, manufactured
and individually tested
to deliver long lasting
solutions for our
customers.
AVK DONKIN GATE VALVES | 3
MATERIALS OF
CONSTRUCTION
QUALITY IS
ESSENTIAL
Main Valve Body and Bonnet: The primary AVK Donkin product is a Series 555 gate valve. The
body and bonnet of this model are available in three materials.
Steel – ASTM A216 WBC / BS EN 10213-2
GP240GH
Steel construction is usually chosen to suit the
higher pressure rating or strength requirements
of the application. On applications such as
a bridge crossing, steel construction should
be considered where the connecting pipes
are steel. Generally when steel pipelines are
laid the valve material should be of an equal
strength to the material of the pipe. Steel
pipelines and valves normally have some type
of cathodic protection when buried.
Ductile Iron – EN 1563 Grade 450-10
Ductile iron construction is usually chosen
to suit the superior ductility requirements
of the application. On applications such
as underground pipe-work where ground
movement can be an issue, the superior
ductility of the material can accommodate the
higher stresses. Careful consideration should
be given to corrosion protection when burying
ductile iron due to the material characteristics.
Cast Iron – EN 1561-Grade GJL 250
Cast Iron construction is the most commonly
used material on gate valves. It can be
successfully used in most applications when
careful consideration is given to pipe stresses.
Careful consideration should also be given to
corrosion protection when burying cast iron due
to the material characteristics.
Valve component options:
There are many options
available for the
components used in
the valve construction
depending on which
application the product is
being used for. Selecting
the correct component
materials for the application
is important to ensure a
long, trouble free working
life for the valves used.
Spindle
The standard spindle material is carbon steel.
If the application involves the use of corrosive
gasses or if the valves are to be buried in
aggressive soil conditions then Grade 303
stainless steel should be considered. All AVK
spindles are manufactured with rolled threads
to guarantee smooth running and maximum
strength.
O-rings
All seals are available in two rubber materials
to accommodate different mediums. For natural
gas, Nitrile EN682 Grade G is used as standard
whereas when used for manufactured gas,
methane or more aggressive mediums then
the seals can be changed to Viton. Normally a
gas analysis should be considered against the
O-ring material properties table to check the
suitability of the seal material for the medium in
the pipeline.
Fastenings
The valve fastenings are primarily used to
connect the valve body and bonnet and are
available in two options. Grade 8.8 black bolts
to BS EN ISO 898 Part 1 are standard with an
option of marine grade stainless steel Grade
A4 to BS EN ISO 3506. On burying a valve,
consideration must be given to the selection of
bolt fastenings material and adequate corrosion
protection.
O-rings and fasteners used in the manufacturing process.
DOUBLE BLOCK
AND BLEED
SAFETY BUILT IN
Double block and bleed is an essential safety feature
requirement on most valve applications. This safety feature
was originally achieved with the use of three separate
valves where the space between the upstream and
downstream valves was vented through a third valve. The
Donkin Series 555 range of gate valves has incorporated
the double block and bleed facility in one valve.
The Series 555 valve has full double block and
bleed facility. This is achieved with independent
o-ring seals on the upstream and downstream
sides of the door, a cavity all around the door
and a vent from the cavity, between the seals.
When maintenance is being carried out
downstream of a double block and bleed valve,
the engineer can work in confidence in the
knowledge that the medium is isolated and
cannot leak past the valve when it is closed and
properly vented.
Traditional
block and bleed
arrangement.
Vent plug with cross
drilled holes.
Vent Plug
The Series 555 vent plug is designed specifically
with a cross drilled hole to allow safe removal
when the block and bleed feature is used. After
closure of the valve, the plug can be undone
one and a half turns allowing the pressure in
the cavity to be safely vented through the cross
drilled hole. The plug can then be fully removed
for an extended vent to be fitted. The sealing of
the valve can also be tested when in-line using
a pressure gauge. Once the cavity is vented the
pressure in the cavity will remain at zero if the
valve is closed and 100% sealed.
Image showing soft seal and
bleed point on a Series 555
double block and bleed valve.
Series 555 valve on double block and bleed test at Donkin manufacturing facility in Chesterfield.
Valve Testing
Every gas valve is tested prior to leaving our
facility. On a standard through bore test the force
of the pressure on the upstream of the valve can
assist the sealing of the downstream seat. To
ensure the valves are tested to be bubble tight,
regardless of the line pressure, AVK test the
door seals at both high pressure (1.1 times the
maximum working pressure) and at low pressure
(6mbar) in each direction. This ensures the
independence and leak tightness of each seat.
The block and bleed port is tested at the same
time to ensure no leakage over the upstream
seat in either direction. With the door in the open
position, each valve is also tested to 2.25 times
the MOP for GIS/V7-1 or 1.5 times the MOP
on non V7-1 valves. This is done to ensure the
integrity of the valve body and shell.
Single Block Option
In applications where there is no requirement
for double block and bleed AVK can offer a
single block valve which is different in design
to the Series 555 range. Instead of having both
upstream and downstream seals, the single block
valve relies on a metal door encapsulated in a
double bonded, rubber coating which seals onto
the full circumference of the valve bore. AVK can
offer both flanged end (Series 06) and PE tailed
versions (Series 36) of the single block valve both
of which come coated with yellow fusion bonded
epoxy coating.
In compliance with EN12266-1 (cross referenced
in GIS/V7-1) all the Series 555 valves are shell
tested prior to any final coating.
Cross section of the door on a single block valve
showing the double bonded rubber coating found in
the Series 06 and Series 36..
VALVE CONNECTIONS
a VALVE TO SUIT ANY
APPLICATION
The AVK and Donkin gate valves can be offered with several
connection options to accommodate the application.
PE Tails
The gate valve is available with PE Tails. The ability to fuse a valve directly into line offers a number of
advantages when a valve is required in a PE underground pipeline. The benefits include:
• No flanged joints below ground eliminating a potential leak path
• Reduction on installation time
• Fewer parts needed normally results in a lower unit cost
• Less complex shape aids corrosion protection
• PE pipe tails can be supplied in a number of options including PE80, PE100, peelable pipe,
alternative SDR (wall thicknesses) and extra long tails according to the application and customer
requirements.
Donkin Series 555 Ductile Iron
valve with PE tails.
Assembly of the Series 555 with PE tails.
Flanged End
Several flange specification options are available.
Our most common supply is PN16 to
BS EN 1092 and ASA 150 to ANSI B16.5,
BS 10:2009 Table D and others table drilling are
available on request.
Series 158 used on live connection.
Weld Ends
When the valve is required in a steel pipeline for
high pressure application, the Series 555S can
be welded directly into line for higher integrity.
The weld preparation must be confirmed to
accommodate the schedule of the pipe.
Studded Ends
On construction valves a studded flange option
is standard, this product is only available in
PN16 flange specification. The Series 158 valve
has extra long studs to accommodate PE stub
flanges.
Series 555 steel valve with
weld ends.
Series 158 under pressure drilling valve with
long studs.
Note: The flange rating may not be the same as
the MOP of the valve.
Series 555 cast iron valve with
PN16 flanges.
Corrosion
Coating
Options
AVK’s gate valve range offers a number of coating options.
The application and environment in which the valve is to
be installed should determine which corrosion protection
coating is selected and applied, either before or after
installation.
Red Zinc Phosphate Primed Coating
If the end user intends to overcoat the valve to a
specific specification, such as when the valve is
installed as part of a pressure reduction station,
then the valve can be supplied with just a primer
coating.
The coating process at the Donkin
facility in Chesterfield, England.
Right: The Series 555 valves with the
standard red zinc phosphate primed
coating.
Far right: Series 158 valves with blue
transit coating. Blue indicates that
the material is cast iron.
Blue Transit Coating
(Series 555 and 555PE Cast Iron Valves)
The blue transit coating is offered on cast iron
gate valves with the option of flanged or PE tails.
This sprayed coating is applied on top of the zinc
phosphate primer. It is designed to protect the
valves during handling storage and installation
and should not be considered a suitable
corrosion protection for buried applications.
Black finish indicates that the material is ductile iron.
Black High Build Twin Pack Epoxy
(Series 555D Ductile Valves)
The Donkin black twin pack epoxy coating is
applied by spraying over the primed valves to
provide a matt finish coating that is available
either in 150μm or 300μm dry film thickness
depending on customer requirements. Although
this is a robust coating, AVK still recommend
that the further corrosion protection may be
necessary dependant upon the valve application.
Series 555D ductile iron
flanged valve.
Grey finish indicates that the material is steel.
Grey Chlorinated Rubber Micaceous Iron
Oxide Coating (Series 555S Steel Valves)
Donkin steel gate valves firstly receive a coating of
zinc phosphate primer followed by the top coat of
chlorinated rubber micaceous iron oxide which is
spray applied after final pressure testing. The total
dry film thickness of this coating is 75μm and is
recommended as a transit coating similar to that
offered on the cast iron valves. Steel pipelines
and valves normally have some type of cathodic
protection when buried.
Series 555 large
diameter steel valve.
CORROSION
COATING
OPTIONS
AVK offers a range of factory applied corrosion protection
coatings capable of protecting the valves in buried
applications. Ranging from fusion bonded epoxy to
polyurethane, suitable for extreme conditions. All of these
coatings negate the need for further protection when
buried. Care must be taken on installation as damage to
any coating can effect its ability to protect the valve.
PUR (Polyurethane) Coating Option (Series
555PE and 36/90 PE Tailed Valves
The ultimate corrosion protection system to
avoid galvanic corrosion is to keep the valves
completely shielded from any contact with the
surrounding soil. AVK can offer PE tailed valves
with a fully encapsulating PUR coating with a
minimum thickness of 1.5mm. Every PUR coated
valve is holiday tested with an output voltage of
20,000v and with an approval criterion of zero
pinholes. This is the coating most suitable for
extreme environments.
Blue Fusion Bonded Epoxy Coating
(Series 555 and 555PE Cast Iron Valves)
AVK offers the Series 555 flanged and PE tailed
valves with the option of marine grade stainless
steel fasteners and spray applied fusion bonded
epoxy coating to 250µm minimum thickness.
This holiday free coating gives the product
excellent corrosion resistance and durability.
AVK recommend that this coating is suitable for
buried conditions with no further protection as
long as it is not damaged.
Yellow Fusion Bonded Epoxy Coating
When the application does not require double
block and bleed, AVK can offer a single block
valve. This option is fusion bonded epoxy coated,
both internally and externally according to DIN
Standard 30677-2 and to a minimum dry film
thickness of 250μm. This holiday free coating
is suitable for buried applications without
further corrosion protection as long as it is not
damaged.
THE DONKIN
ASSET PROTECTION
SYSTEM FOR VALVES
As part of AVK’s commitment to provide our
customers with solutions, not just products, we have
developed the Donkin Asset Protection System for
our market leading gas valve range.
The system in its entirety has been designed to ensure that valve installations are
quicker, of a consistently high quality, and are fully traceable and auditable. The
system also improves the asset life and integrity of the valve whilst negating the
need for additional protection systems.
The full system is comprised of five main elements that deliver these benefits
• A unique, factory applied, high performance Polyurethane coating, specially
developed by AVK to withstand the rigors and challenges of underground
installation.
• Factory fitted PE tails.
• The AVK Valve Installation Tracker to log, locate and audit the valve installation
• Stainless steel spindle.
• Stem cap.
Our extensive research, experience and testing have given us the confidence to offer
a warranty of 20 years* for valves which incorporate all the above features.
GIS/V7-1 & GIS/PL3
Coated to BS EN 10290
Complies with T/SP/CW/6-2
Available ex-stock from Donkin
FEATURES AND BENEFITS
REDUCE VALVE WRAPPING - The Polyurethane coated, PE tailed, Series
555 can be installed without any further corrosion protection required, so it’s
just a case of install, record and backfill. Valves with flanged ends have fully
protected valve bodies but will still need to be wrapped on the connecting
flanges to ensure that the connecting bolts are fully protected. This is a
major saving on both models when compared to wrapping the whole valve.
SPEED UP INSTALLATION - Fitting the Donkin Polyurethane coated, PE
tailed valves increases the speed of installation by eliminating the time
taken to bolt up the connecting flanges and fully wrap the installation. The
estimated potential labour saving is up to 2 hours on a DN300 valve.
When compared to field applied liquid coatings (which can take up to
24 hours to cure) there is a considerable time saving using this factory
applied system.
REDUCE POTENTIAL FOR UNDERGROUND LEAKS - The Donkin PE tailed
Polyurethane coated valves are factory fitted and tested. The PE ends are
directly electrofused to the PE pipeline, eliminating the need for bolted joints,
removing the potential for leaks and increasing the asset integrity value of the
pipeline.
VALVE ASSET TRACKING - The AVK Valve Installation Tracker ensures
installed valves are logged with a GPS location, photograph and installation
record, providing easily accessible and accurate data to allow full auditing of
installed works.
*EXTENDED WARRANTY - When you purchase the Series 555 PE tailed
valves with the Donkin Polyurethane coating, stainless steel spindle, stem
cap and register with the AVK Valve Installation Tracker, AVK will offer a
comprehensive 20 year warranty on the corrosion protection of the
valve.
APPROVED TO RECOGNISED STANDARDS - The Donkin Polyurethane
coating offered by AVK has been used extensively by gas customers on
mainland Europe since 1995. It is fully type tested to European standard
EN 10290 and also complies with all the relevant parts of UK gas standard
T/SP/CW/6-2. In addition we have undertaken several site specific tests to
validate and approve the robustness of the coating. These high level tests
assure total confidence in its ability to fully protect your buried assets.
CONCLUSION - The Donkin Series 555, PE tailed, Polyurethane
coated valve with stainless steel spindle, stem cap and the AVK Valve
Installation Tracker will ensure a lower cost, high integrity buried valve
installation.
SIZE RANGE - PE ended version with pipe diameters from DN90-315.
For flanged applications : We offer the Donkin Series 555 flanged valve
with the Donkin Polyurethane coating and Installation Tracker.
Note : Flanged connections still require additional corrosion protection.
Size range : DN80-300
FULL TRACEABILITY
in every step
Traceability is essential on valves and other key
components in a gas system. Each gate valve has a unique
serial number allocated after successful production testing.
This gives complete traceability to the raw materials in the
key components along with the manufacturing details.
Keeping clear records of the serial number and location of
valves assists rapid identification of a component should
the need arise. The process in our factory includes:
Valve door, body and bonnet marking
Each door, body and bonnet has a raised cast
number identifying the foundry, typically a four
digit number, followed by five further numbers
and letters which identify the date of the casting.
This identification can be traced back to a test
bar on the day of casting which records the
details of the “alloy” content. The same number
is recorded against the unique serial number of
the valve when allocated after testing.
Fasteners
Each batch of fasteners are supplied with 3.1
test certificates and a unique material certificate
number from the manufacturer who must hold
a valid ISO 9001 certificate registered with a
leading European accreditation body.
A quantity of bolts according to ISO 2859-1
(BS 6001) are then preload tested for a 72 hour
period allowing zero defects to accept the batch.
The unique material certificate number is written
on every box (typical content 100) and this
number is then recorded against the unique
valve serial number.
This process ensures complete traceability
throughout the whole manufacturing process.
Permanent marking and attached
aluminium tag with unique serial
number.
Cast iron Series 555 valves being prepared for
despatch. Note : Each valve has installation and
maintenance instructions attached.
Individual valve testing
On successfully passing the production test
each valve is then allocated a unique serial
number. The serial number is permanently hard
stamped on the connecting flanges or on the
body-bonnet flange if the valve has PE tails.
An aluminium tag with the same number is
also attached to the valve and is designed to
allow the end user to remove and attach to the
surface box of the valve access system for easy
reading.
AVK strongly recommend that this same number
is recorded on the valve installation records.
Right: Data recording process.
Far right: Raised cast number
identifying foundry of origin.
AVK VALVE
INSTALLATION
TRACKER
Records
AVK record and retain all of the traceable
information for each valve. This includes
materials, components and test data of each
individual valve from the casting date of a
component through to the successful testing
of the valve. This information is kept on an
electronic form to enable rapid and accurate
access should the need arise. Finally, when
each valve is despatched, the unique numbers
are recorded against the date of despatch and
the customer giving full traceability from raw
material to customer warehouse. As previously
stated, on installation adding the unique
valve number and location to the site records
completes the chain.
AVK VALVE INSTALLATION
TRACKER is the new Asset
Management System*
from AVK. Utilising a new,
purpose built, user friendly
mobile app & web portal.
AVK valve installation tracker uses a QR code
platform, designed to give full traceability of
your assets providing the data on each installed
valve, and gives the opportunity to review the
quality of the installation. This, combined with a
unique GPS pin location and a picture of each
installation, ensures that you have a complete,
accurate and auditable record of every valve
installed. Furthermore, all the data recorded
can be exported into standard data formats for
integration into the clients existing mapping
systems.
*Patent pending.
For more information please contact AVIT help
avithelp@avkuk.co.uk
QUALITY VALVES
FOR VITAL SYSTEMS
Top : Donkin manufacturing facility in Chesterfield.
Middle : Pressure testing rig.
Bottom : Component inspection and testing process.
Donkin and AVK have been manufacturing products in
our UK plants for many decades to supply to the UK and
worldwide gas industries. We are proud to say that quality
is built into our products, from the initial design and right
through the manufacturing process.
AVK’s quality assurance system is third party
certified according to ISO 9001 and ISO 14001
for environmental management. We also
operate and are certified to OHSAS 18001 the
international standard for occupational health
and safety.
All our products are rigorously type tested to
ensure compliance with Gas Industry Standards,
and are 100% checked before despatch to our
customers. Our quality is not only paramount in
our products but also in our staff and the way
we deal with our customers. The Donkin brand
has been successfully associated with the gas
industry for over 150 years.
For the UK market our gate valves are all
approved to Gas Industry Standards (GIS) and
are certified by the BSI Kitemark scheme. Valves
for other markets are tested and approved to
relevant international standards.
ENVIRONMENTAL MANAGEMENT SYSTEM - ISO 14001:2004
QUALITY MANAGEMENT SYSTEM - ISO 9001:2008
This is to certify that:
This is to certify that:
AVK UK Limited
AVK UK Limited
Northampton Office
8 Rushmills
Northampton
NN4 7YB
United Kingdom
Northampton Office
8 Rushmills
Northampton
NN4 7YB
United Kingdom
Holds Certificate No: EMS 77367
and operates an Environmental Management System which complies with the requirements of ISO 14001:2004 for the
following scope:
Holds Certificate No: FS 32794
and operates a Quality Management System which complies with the requirements of ISO 9001:2008 for the following
scope:
The marketing, sales and distribution of valves and fittings for water, sewage, fire
fighting and gas industries.
The marketing, sales and distribution of valves and fittings for water, sewage, fire
fighting and gas industries.
For and on behalf of BSI:
For and on behalf of BSI:
Managing Director, BSI EMEA
Managing Director, BSI EMEA
Originally registered: 14/08/2003
Latest Issue: 10/12/2009
Expiry Date: 24/01/2013
Originally registered: 20/11/1995
Latest Issue: 10/12/2009
This certificate was issued electronically and remains the property of BSI and is bound by the conditions of contract.
An electronic certificate can be authenticated online.
Printed copies can be validated at www.bsigroup.com/ClientDirectory
The British Standards Institution is incorporated by Royal Charter.
BSI (UK) Headquarters: P.O. Box 9000, Milton Keynes MK14 6WT. Tel: 0845 080 9000
Expiry Date: 24/01/2013
Page: 1 of 2
Page: 1 of 2
This certificate was issued electronically and remains the property of BSI and is bound by the conditions of contract.
An electronic certificate can be authenticated online.
Printed copies can be validated at www.bsigroup.com/ClientDirectory
The British Standards Institution is incorporated by Royal Charter.
BSI (UK) Headquarters: P.O. Box 9000, Milton Keynes MK14 6WT. Tel: 0845 080 9000
IN HOUSE DESIGN
EXPERIENCE AND
KNOWLEDGE
The Valve Design Process: Donkin’s product design and
innovation is carried out at our facility in Chesterfield and
employs the most modern design techniques to ensure the
value engineered quality solution is always used.
Starting with the three-dimensional CAD system
the designs are developed against the strict
requirements of the specification. Using the
power of modern computerised technology,
when the design reaches the final draft stage
it is checked with a finite element analysis to
ensure stresses and strains within the assembly
are within acceptable limits. When required, the
flow characteristics can also be analysed with
a fluid dynamic simulation. When the design
is to be cast, a melt flow analysis will be run
to ensure the casting process gives uniform
properties and defect free castings. Prototype
samples of castings are then X-rayed for
defects.
All these processes are followed each time a
new design or significant change to a design
is introduced. Castings are X-rayed from every
foundry if our supply chain is changed at any
time.
The valve will then go through the full type
test which often requires test to destruction.
This test finally proves the theoretical strength
and properties of a design according to the
specification and the Pressure Equipment
Directive. Donkin tests often exceed the
requirements of the specification ensuring we
fully understand the limits of the designs prior to
any production run.
Above Top : Examples of 3D drawings
Above middle : Finite element analysis.
Above Lower : Casting cooling simulation.
Right : Further examples of 3D drawings.
GATE VALVE SOLUTIONS FOR GAS
SERIES 555/300
Donkin Cast Iron Softseal
Valve
DN80-300
PN7
Cast Iron
GIS/V7 Part 1
SERIES 555 301/302
Donkin Ductile Iron Softseal
Valve
DN80-300
PN7/10
Ductile Iron
GIS/V7 Part 1
Options:
•
Viton Seals
•
S/S Spindle
•
Fusion Bonded Epoxy
with S/S Fasteners
•
Handwheel
•
Gearbox
•
For DN50 see series
555/200-001
Options:
•
Viton Seals
•
S/S Spindle
•
Handwheel
•
Gearbox
SERIES 555/103 & 303
Donkin Steel
Softseal Valve
DN50-300
PN7/16/19
Cast Steel
GIS/V7 Part 1
SERIES 555/300-002
Donkin Cast Iron
Softseal Valve
DN50-300
PN7
Cast Iron
GIS/V7 Part 1
Options:
•
Viton Seals
•
S/S Spindle
•
Handwheel
•
Gearbox
Options:
•
Fusion Bonded Epoxy
with S/S Fasteners
•
Handwheel
•
Actuator
•
Gearbox
•
For DN50 see series
555/200-001
SERIES 555/100
Donkin Large Diameter
Softseal Valve
DN350-600
PN2
Cast Iron
GIS/V7 Part 1
SERIES 555/101
Softseal Valve
DN400-600
PN7
Ductile Iron
GIS/V7 Part 1
SERIES 555/103
Softseal Valve
DN400-600
PN7
Cast Steel
GIS/V7 Part 1
Options:
•
Viton Seals
•
S/S Spindle
•
Handwheel
•
Gearbox
Options:
•
Viton Seals
•
S/S Spindle
•
Handwheel
•
Gearbox
Options:
•
Viton Seals
•
S/S Spindle
•
Handwheel
•
Gearbox
SERIES 555/163
Donkin Weld End
Softseal Valve
DN2”-12”
PN50
Steel
API 6D,
BS 12266-1, 2245.15-09
SERIES 158/04
Donkin Under
Pressure
Drilling Valve
DN80-300
PN7
Cast Iron
GIS/V7 Part1
SERIES 777
Donkin Slide Valve
DN750-1200
PN2
Fabricated Steel
EN 12266
Options:
•
S/S Spindle
•
Alternative Weld Prep
•
Handwheel
•
Gearbox
Options:
•
Falsecap
•
Handwheel
SERIES 38/90
AVK Ductile Iron
DN50-200
PN10
EN 13774
SERIES 06/70
AVK Ductile Iron 06/70
DN40-600
PN10/16
EN 13774
SERIES 36/90-170
AVK Ductile Iron 36/90
DN50-400
PN10
EN 13774
Options:
•
Stem Cap
•
Handwheel
•
Extension Spindle
Options:
•
Stem Cap
•
Handwheel
•
Extension Spindle
Options:
•
Stem Cap
•
Extension Spindle
•
PUR Coating for
corrosive Ground
36/90/185
SERIES 555/370
Donkin Cast Iron/PE
Softseal Valve
DN90-315
PN4/7
Cast Iron
GIS V7 Part 1
GIS PL3
Options:
•
Viton Seals
•
S/S Spindle
•
PE 100 Ends
•
Fusion Bonded Epoxy
with S/S Fasteners
SERIES 555/371
Donkin Ductile Iron/PE
Softseal Valve
DN90-315
PN4/7
Ductile Iron
GIS V7 Part 1
GIS PL3
Options:
•
Viton Seals
•
S/S Spindle
•
Fusion Bonded Epoxy
with S/S Fasteners
Options:
•
Stem Cap
•
Handwheel
ACCESSORIES FOR GAS VALVES
Retrofit Position Indicator
The Donkin position indicator has been
specifically designed for use with the
Series 555 range of valves and is
available for sizes up to DN300. It can
be used on valves above or below ground
and can be retrofitted to valves already
installed if required.
Tee Keys
AVK can supply a range of Tee Keys
with either a 25mm or 28mm square
drive, in various lengths to suit
customer needs.
False cap (stem cap)
If a valve is used underground it
is advisable to fit this with a false
cap on the top of the spindle so
that the termination is consistent no
matter what the size of the valve.
This allows all sizes of valve to be
operated with the same Tee Key.
Donkin has two options available :–
28mm square drive and 25mm
square drive.
Hand-wheels
Donkin has a full range of hand
wheels available for use with our
gate valves when used for above
ground applications. These vary in
diameter to suit the size of the valve
and are permanently attached with
a fixing screw into the top of the
valve spindle.
555 Valve Access System
Adaptors
The Donkin access system adaptor
is a simple and cost effective device
that allows the end user to provide
easy access to the valve spindle
from the surface. The device is an
adaptor manufactured from recycled
plastic that fits over the valve spindle
and allows the end user to fit
off-cuts of PE pipe to provide the
down pipe (either 90mm or 125mm).
This is a major cost saving for the
end user as it recycles PE pipe ends
that would otherwise be scrapped.
Anti Tamper Device
The Donkin anti tamper device
has been designed for use with
the Series 555 range of valves
and is available for sizes up to
DN200. It has been developed
for circumstances where gate
valves are fitted in any areas
that are accessible to the public
such as ring mains in apartment
blocks. This device can be fitted
to the valve spindle and allows
the valve to be easily closed in
an emergency but not reopened
without the use of a Tee Key.
GATE VALVE SELECTION GUIDE
CORROSION, INTEGRITY, CONNECTIONS
Option
Variations
Standard Coatings
Corrosion Protection
Fusion Bonded Epoxy
Polyurethane
Application
Suitable for some above
ground applications.
Below ground will require
secondary corrosion
protection.
Suitable for below ground
applications with care taken
during installation.
Excellent in aggressive soils
and highly corrosive
environments.
For use with PE tailed valves.
Double Block and
Bleed
Suitable for all applications.
Single Block
Can be considered for service
isolation, temporary bypass,
construction valves (158/04).
Product Code
Series 555 : Types 100, 101,
103, 163, 300, 301, 301M, 302,
303, 370, 371
Series 158/04 and 777
Series 555 : Type 300 , 301M
and 370
Series 06/70, 36/90/170 &
185, 38/90 and 158/04
Series 36/90 /185
Series 555 : Types 100, 101,
102, 300, 301, 301M, 302,
303, 370 and 371.
Series 777.
Integrity
Flanged
Suitable for all applications.
Series 06/70, 36/90/170 & 185,
38/90 and 158/04
Series 555 : Types 100, 101,
102, 163, 300, 301, 301M, 302,
and 303.
PE Tails
Can be used in all
underground applications in
PE pipelines except hot taps.
Series 555 : 370 and 371.
Series 36/90/170 and 185,
Series 38/90
Connections
Studded
Weld End
Easy to fit to other flanges.
Primarily used on
construction valves.
Fully integral part of steel
main.
Used on high pressure mains.
Series 158/04
Series 555/163
This guide has been designed to give an overview of the extensive valve options available for the many different applications.
Valve suitability will be confirmed by our sales office during the quotation process or at the point of ordering.
GATE VALVE SELECTION GUIDE
MATERIALS & ACCESSORIES
Option
Application
Variations
Cast Iron Body
Ductile Iron Body
Product Code
Suitable for use on cast iron,
ductile iron and PE mains.
Series 555 : Types 100, 300,
301M and 370
Pipe stresses should be kept to
a minimum.
Suitable for use on cast iron,
ductile iron and PE mains.
Series 158/04
Series 555 : Types 101, 301 and
302
Series 06/70, 36/90/170 and
185,
Can be used on steel mains with
care.
Series 38/90
Suitable for use on all metallic
and PE mains.
Materials
Steel Body
Series 555 : Types 103,
Recommended that steel valves
are always used on steel
pipelines.
163 and 303
Nitrile rubber for use on natural
gas and LPG. Viton for more
corrosive gases such as biogas
and town gas.
Rubber Seals
Both nitrile and viton are
available on all Series 555
products.
Standard grade 8.8 black.
A4 stainless steel for more
corrosive environments.
Fasteners
Single block valves A2 stainless
steel with option of A4.
Handwheel/Falsecap
Position Indicator
All products have the option of
A4 stainless steel bolts if
requested.
Option available on all valves .
Plastic retrofit indicator for
Series 555 range up to DN300.
Above DN300 indicator must be
ordered with valve.
Valve Access System
Available for all the Series 555
range except weld end valves.
Anti Tamper Device
Series 555 valves up to DN
200mm.
Actuator or Gearbox
Available on all products on
request.
Extension Spindle
Fixed or telescopic extension
spindle available dependant
upon valve type.
Accessories
ADDITIONAL PRODUCTS
IN THE DONKIN RANGE
SERIES 85/30
Donkin Certus
PE Clear Bore Service
Isolation Valve
DN32-90
PE100
GIS/V7 Part 2
EN 1555-4
SERIES 85
Donkin Certus Installation
Kit Fits the DN32 and DN63
valves with or without
surface box
SERIES 450/00
Donkin Ball Valve
DN40-150
PN7
Ductile Iron Body
Stainless Steel Ball
BS 5159, EN 12266
SERIES 460/02
Donkin Steel Ball Valve
DN20-50
PN7
Carbon Steel Body
Stainless Steel Ball
BS 5159
SERIES 455/74
Donkin Purge / Bypass
Point Ball Valves
1” x 32
2” x 63
PN4
Ductile Iron,
GIS//PL3, GIS/V4
BS 5159, EN 12266
SERIES 310/061
Donkin Flow Limitor
DN32
PN0.075-5.00
HDPE
GIS/EFV1
SERIES 216
Donkin Mains to Meter
Meter Box Adaptor
DN20-32
PN4
GIS/PL3
SERIES 217/001-002
Factory Entry Elbow
DN40 x 1½” to 180 x 6”
PN4
GIS/PL3
SERIES 218
Below Ground Entry
Fitting,
DN25 x ¾” to 180 x 6”
PN4
GIS/PL3
SERIES 202/31
Donkin Multiple
Band Repair Clamp
DN80-1200
PN2/7
Stainless Steel
GIS/LC8 Part 4
SERIES 257/31
Donkin Universal Tee
DN100-300
PN7
Ductile Iron
GIS/LC8 Part 4
SERIES 215/31
Donkin Stainless
Steel Tee
DN80-1200
PN2/7
Stainless Steel
GIS/LC8 Part4
SERIES 214/31
Donkin Fabricated
Flowstop Tee
DN350-600
PN7
Mild Steel
SERIES 39
Donkin PE100
Flange Adaptor
DN63-400
PN4/7
PN16 or ASA flanges
Ductile Iron
GIS/PL3
EN 1092 (ISO 7005-2)
SERIES 248/32
Donkin Universal
End Cap
DN80-600
PN2
Ductile Iron
GIS/F13
Contact our gas sales office on +44 (0) 1246 479100 for more information on the Donkin
product range or visit our website www.avkuk.co.uk
AWARD
WINNING
CARBON
MANAGEMENT
CARBON EMISSIONS MANAGEMENT
POLICY
The AVK UK Carbon Emissions Management
Policy monitors, manages, reviews and reduces
carbon emissions across AVK UK. Taking a
significant initial step forward in understanding
its carbon emissions, AVK UK is preparing for
a carbon-restricted future. We are aware of
and responding to the increasing importance
that both UK and international governments are
acting to reducing carbon emissions over the
next few years.
ANNUAL GREENHOUSE GAS REPORT
AVK UK Group have produced an Annual
Greenhouse Gas Report following DEFRA 2011
guidelines. It is anticipated that producing
carbon emissions reports may become
mandatory.
CARBON TRUST
THE PRINCE’S MAYDAY NETWORK
AVK UK has recently developed its carbon
management regime by transferring to The
Carbon Trust accreditation scheme which
works around the world, with offices in the UK,
China, South Africa, Mexico and the USA. The
Carbon Trust has a main focus of promoting a
low carbon society, and helping organizations
around the world to reduce their ongoing
emissions. These actions are critical in order to
tackle global issues such as climate change and
global warming.
AVK UK is part of The Prince’s Mayday Network,
formed by HRH The Prince of Wales, which is
a network of forward thinking businesses, that
have made a pledge to take action on climate
change.
Organizations which currently work with the
Carbon Trust include Coca Cola Enterprises,
Marks and Spencer, British Telecom and
Samsung Electronics.
AVK is proud to have its name added to the list,
as we take pride in working to cut down on our
carbon footprint, and will continue our efforts to
work towards an environmentally friendly future.
DERBYSHIRE’S BEST BUSINESS
AWARDS 2012 ENVIRONMENTAL
CATEGORY
With a high calibre of entries from a range of
companies it was AVK Company, Bryan Donkin
Valves Ltd who picked up the Environment
Award sponsored and judged by Toyota
Manufacturing (UK) Ltd. AVK and Bryan
Donkin Valves continue to use the Carbon
Disclosure Project to benchmark against other
environmentally aware companies and use the
results to identify areas in which improvements
could be made.
Chesterﬁeld Ofﬁce
Colliery Close, Ireland Ind. Est.,
Staveley, Chesterfield,
S43 3FH
England, UK.
Tel: +44 (0) 1246 479100
Fax: +44 (0) 1246 479200
Email: gasenquiries@avkuk.co.uk
www.avkuk.co.uk
DGVS JAN2016 Copyright©AVK Group A/S 2016

donkin gate valve solutions

Transcription

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