AVK_UK_Donkin_Gate_Valve_Solutions.pdf

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DONKIN GATE VALVE SOLUTIONS

2 | AVK DONKIN GATE VALVES

Manufacturing gas valves since 1847As 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-the-art 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.

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.

AVK AND DONKIN rENOwNED wOrLDwIDE

AVK DONKIN GATE VALVES | 3

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.

Introducing our new and extensive range of gate valves to suit any application


MATErIALS OF CONSTrUCTION QUALITY ISESSENTIAL

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 GP240GHSteel 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.


SpindleThe 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-ringsAll 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.

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.


DOUBLE BLOCKAND BLEEDSAFETY BUILT IN

Traditional block and bleed arrangement.

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.

Vent PlugThe 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.

Vent plug with cross drilled holes.

Image showing soft seal and bleed point on a Series 555

double block and bleed valve.


Valve TestingEvery 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.

In compliance with EN12266-1 (cross referenced in GIS/V7-1) all the Series 555 valves are shell tested prior to any final coating.

Single Block OptionIn 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.

Series 555 valve on doubleblock and bleed test at Donkin

manufacturing facility in Chesterfield.

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

Series 555 cast iron valve with

PN16 flanges.

PE TailsThe 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.

Flanged EndSeveral flange specification options are available. Our most common supply is PN16 to BS EN 1092 and ASA 150 to ANSI B16.5, BS10:2009 Table D and others table drilling are available on request.

Note : The flange rating may not be the same as the MOP of the valve.

The AVK and Donkin gate valves can be offered with several connection options to accommodate the application.

Donkin Series 555 Ductile Iron valve with PE tails.


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.

Series 555 steel valve with weld ends.

Series 158under pressure drillingvalve with long studs.

Studded EndsOn 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.

Assembly of the Series 555 with PE tails.

Series 158 used on live connection.


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.

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.

COrrOSION COATINGOPTIONS

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.

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.

The coating process at the Donkin facility in Chesterfield, England.


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 555 large diameter steel valve.

.

Grey finish indicates that the material is steel.

Black finish indicates that the material is ductile iron.

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 555D ductile iron flanged 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.

COrrOSION COATINGOPTIONSULTIMATE PrOTECTION

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.

Right and far right : AVK valves during the

epoxy coating process.

PUR coating.


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.

Above and right: Series 06 single block valves.

.

Below: Quality control.Testing the coating thickness.


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 markingEach 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.


Individual valve testingOn 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.

recordsAVK 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 in 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 stated already, on installation adding the unique valve number and location to the site records completes the chain.

Right : Data recording process.

Far right : Raised cast number identifying foundry of origin.

Cast iron Series 555 valves being prepared for despatch. Note : Each valve has installation and maintenance instructions attached.


QUALITY VALVES FOr VITAL SYSTEMS

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 in built into our products, from the initial design and right through the manufacturing process.

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. 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.

ENVIRONMENTAL MANAGEMENT SYSTEM - ISO 14001:2004

This is to certify that:

AVK UK LimitedNorthampton Office8 RushmillsNorthamptonNN4 7YBUnited Kingdom

Holds Certificate No: EMS 77367and operates an Environmental Management System which complies with the requirements of ISO 14001:2004 for thefollowing scope:

The marketing, sales and distribution of valves and fittings for water, sewage, firefighting and gas industries.The marketing, sales and distribution of valves and fittings for water, sewage, firefighting and gas industries.

For and on behalf of BSI:

Managing Director, BSI EMEA

Originally registered: 14/08/2003 Latest Issue: 10/12/2009 Expiry Date: 24/01/2013

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

QUALITY MANAGEMENT SYSTEM - ISO 9001:2008

This is to certify that:

AVK UK LimitedNorthampton Office8 RushmillsNorthamptonNN4 7YBUnited Kingdom

Holds Certificate No: FS 32794and operates a Quality Management System which complies with the requirements of ISO 9001:2008 for the followingscope:

The marketing, sales and distribution of valves and fittings for water, sewage, firefighting and gas industries.The marketing, sales and distribution of valves and fittings for water, sewage, firefighting and gas industries.

For and on behalf of BSI:

Managing Director, BSI EMEA

Originally registered: 20/11/1995 Latest Issue: 10/12/2009 Expiry Date: 24/01/2013

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

Top : Donkin manufacturing facility in Chesterfield.

Middle : Pressure testing rig. Bottom : Component inspection

and testing process.


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.

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.

Above Top : Examples of 3D drawingsAbove middle : Finite element analysis.

Above Lower : Casting cooling simulation.Right : Further examples of 3D drawings.


GATE VALVE SOLUTIONS FOr GAS

Series 555/370Donkin Cast Iron 555PEDN90 – 315mm. PN4/7GIS V7: Part 1, GIS/PL3

Options:• Viton Seals• S/S Spindle• PE 100 Ends• Fusion Bonded Epoxy with S/S Fasteners

Series 555/103 & 303Donkin Steel 555SDN50 – 300mm. PN7/19GIS V7: Part 1

Options:• Viton Seals• S/S Spindle• Handwheel• Gearbox

Series 555/101Donkin Ductile Iron 555DDN400 – 600mm.PN7GIS V7: Part 1


Series 06/70AVK Ductile Iron 06/70DN40 – 600mm. PN10/16 EN 13774

Options:• Stem Cap• Handwheel• Extension Spindle

Series 555/100Donkin Cast Iron 555DN350 – 600mm. PN2GIS V7: Part 1


Series 555/103Donkin Steel 555SDN400 – 600mm. PN7 GIS V7: Part 1


Series 555/301M Donkin Cast Iron 555MDN80 – 300mm.PN7GIS V7: Part 1

Options:• Fusion Bonded Epoxy with S/S Fasteners• Handwheel• Actuator• Gearbox

Series 555/300Donkin Cast Iron 555DN80 – 300mm. PN7GIS V7: Part 1

Options:• Viton Seals• S/S Spindle• Fusion Bonded Epoxy with S/S Fasteners• Handwheel• Gearbox

Series 555/371Donkin Ductile Iron 555PEDN50 – 300mm. PN7/10GIS V7: Part 1, GIS Pt3

Options:• Viton Seals• S/S Spindle• Fusion Bonded Epoxy with S/S Fasteners

Series 555/163Donkin Steel 555SDN50 – 300mm.PN50GIS V7: Part 1

Options:• S/S Spindle• Alternative Weld Prep• Handwheel• Gearbox

Series 555/301 & 302Donkin Ductile Iron 555DDN80 – 300mm. PN7/10GIS V7: Part 1


Series 36/90/170AVK Ductile Iron 36/90DN65 – 300mm.PN10EN 13774

Options:• Stem Cap• Extension Spindle• PUR Coating for corrosive

Ground 36/90/185

Series 38/90AVK Ductile Iron 38/90DN50 – 200mm.PN10EN 13774

Options:• Stem Cap• Handwheel• Extension Spindle

Series 158/04Donkin Cast Iron 158DN80 – 300mm.PN7GIS V7: Part 1

Options:• Falsecap• Handwheel

Series 777Donkin Fabricated Steel 777DN750 – 1200mm. PN2/4EN 12266

Options:• Stem Cap• Handwheel


ACCESSOrIES FOr GAS VALVES

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 thetermination 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.

Anti Tamper DeviceThe Donkin anti tamper device has been designed for use with the Series 555 range of valves and is available for sizes up to DN200mm. 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.

Tee KeysAVK can supply a range of Tee Keys with either a 25mm or 28mm square drive, in various lengths to suit customer needs.

retrofit Position IndicatorThe Donkin position indicator has been specifically designed for use with the Series 555 range of valves and is available for sizes up to DN300mm. It can be used on valves above or below ground and can be retrofitted to valves already installed if required.

555 Valve Access System AdaptorsThe 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.

Hand-wheelsDonkin 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.


GATE VALVE SELECTION GUIDE COrrOSION, INTEGrITY, CONNECTIONS

Variations Product CodeApplicationOption

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.

Corrosion Protection

Standard Coatings

Suitable for some aboveground applications.

Below ground will require secondary corrosion

protection.

Series 555 : Types 100, 101, 103, 163, 300, 301, 301M, 302,

303, 370, 371Series 158/04 and 777

Fusion Bonded EpoxySuitable for below ground

applications with care taken during installation.

Series 555 : Type 300 , 301M and 370

Series 06/70, 36/90/170 & 185, 38/90 and 158/04

PolyurethaneExcellent in aggressive soils

and highly corrosive environments.

For use with PE tailed valves.

Series 555/370 and 371Series 36/90 /185

Integrity

Double Block and Bleed Suitable for all applications.

Series 555 : Types 100, 101, 102, 300, 301, 301M, 302,

303, 370 and 371. Series 777.

Single BlockCan be considered for service isolation, temporary bypass, construction valves (158/04).

Series 06/70, 36/90/170 & 185, 38/90 and 158/04

Connections

Flanged Suitable for all applications.

Series 555 : Types 100, 101, 102, 163, 300, 301, 301M, 302,

and 303.Series 158/04 and 777

PE TailsCan 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

StuddedEasy to fit to other flanges.

Primarily used on construction valves.

Series 158/04

Weld EndFully integral part of steel

main.Used on high pressure mains.

Series 555/163


Option

GATE VALVE SELECTION GUIDE MATErIALS & ACCESSOrIES

Variations Product CodeApplication

Materials

Cast Iron BodySeries 555 : Types 100, 300,

301M and 370 Series 158/04

Suitable for use on cast iron, ductile iron and PE mains.

Pipe stresses should be kept to a minimum.

Ductile Iron BodySuitable for use on cast iron,

ductile iron and PE mains. Can be used on steel mains with

care.

Series 555 : Types 101, 301 and 302

Series 06/70, 36/90/170 and 185,

Series 38/90

Steel Body

Suitable for use on all metallic and PE mains.

Recommended that steel valves are always used on steel

pipelines.

Series 555 : Types 103, 163 and 303

Rubber SealsNitrile rubber for use on natural

gas and LPG. Viton for more corrosive gases such as biogas

and town gas.

Both nitrile and viton are available on all Series 555

products.

Fasteners

Standard grade 8.8 black.A4 stainless steel for more

corrosive environments. Single block valves A2 stainless

steel with option of A4.

All products have the option of A4 stainless steel bolts if

requested.

Accessories

Handwheel/Falsecap Option available on all valves .

Position IndicatorPlastic 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 SpindleFixed or telescopic extensionspindle available dependant

upon valve type.


ADDITIONAL PrODUCTS IN THE DONKIN rANGE

Series 460/02Donkin SteelBall ValveDN20-50, PN7Carbon Steel BodyStainless Steel BallBS 5150

Series 450Donkin Ball ValveDN40-150, PN7Ductile Iron BodyStainless Steel BallBS5159, EN 12266

Series 217Donkin Factory Entry ElbowDN40 x 1½” to DN180 x 6” GIS/PL3

Series 202/31Donkin MultipleBand Repair ClampDN80-1200, PN2/7Stainless SteelGIS/LC8 Part 4

Series 257/31Donkin Universal TeeDN100-300Ductile IronGIS/LC8 Part 4

Series 218Donkin Below Ground EntryFittingDN25 x ¾” toDN180 x 6”GIS/PL3

Series 216Donkin Meter Box Adaptor.DN20-32, PN 4GIS/PL3

Series 85-30PE Clear Bore Service Isolation ValveDN32 - 90, PN10PE100GIS/V7 Part 2Note : Full installation kit available for 32 & 63mm valves

Series 310Donkin Flow Limitor Range5 different variants - refer to datasheetsfor further information.

Series 455 & 455LDDonkin Ball ValveDN 3/4”/1”/2”, PN 7Ductile IronGIS/V4, GISE1GIS/PL3

Series 451Donkin ServiceIsolation ValveDN3/4”-2”/25-63PN4/7Ductile Iron BodyStainless SteelGIS/V4, GIS/PL3

Series 248/32Donkin UniversalEnd CapDN80-300, PN2Ductile IronGIS/F13

Series 39Donkin PE100 Flange AdaptorDN63-400PN16 or ASA flangesGIS/PL3

Series 214/31Donkin FabricatedFlowstop TeeDN350-600mm, PN7Mild Steel

Series 215/31Donkin StainlessSteel TeeDN90-1200, PN2/7Stainless SteelGIS/LC8 Part4

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


AwArDwINNINGCArBONMANAGEMENT

Carbon Emissions Management PolicyThe 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 attaching to reducing carbon emissions over the next few years.

Annual Greenhouse Gas reportAVK UK Group have produced an Annual Greenhouse Gas Report following DEFRA 2011 guidelines. It is anticipated that producing carbon emissions reports may become mandatory.

Prince’s Mayday NetworkAVK 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.

CLEEAr StandardThe CLEEAR Standard (CarbonLow Emissions Evaluation and Reduction) from CarbonLow - approved by the Environment Agency as a Carbon Trust Standard equivalent - is awarded to companies adhering to ISO14064-1 and the Greenhouse Gas Protocol to monitor and reduce carbon emissions. All companies in the AVK UKGroup have achieved this standard.

Derbyshire’s Best Business Awards 2012Environmental CategoryWith 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.

Images: Donkin heat exchange unit.Derbyshire’s Best Award.

Tel.: +44 (0) 1246 479100Fax.: +44 (0) 1246 [email protected]

May 2013Copyright©AVK Group A/S 2013

AVK UK LimitedIreland Industrial EstateStaveleyChesterfieldEngland S43 3FH

AVK_UK_Donkin_Gate_Valve_Solutions.pdf

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