This method of supplying blended water to a bidet involves complicated control methods as the control of water to the … The purpose of WRAS is to contribute to the protection of public health by preventing contamination of public water supplies and encouraging the efficient use of water by promoting and facilitating compliance with the Water Supply (Water Fittings) Regulations and Byelaws in Scotland. Registered in England No, 06663930 Registered office: 6D Lowick Close, Hazel Grove, Stockport, SK7 5ED Type AB – Air gap with weir overflow; Type AC – Air gap with vented submerged inlet and circular overflow; Type AD – Air gap with injector; Type AF – Air gap with circular overflow; Type AG – Air gap arrangement with minimum size circular overflow; Type AUK1 – Air gap with interposed cistern; Type AUK2 – Domestic tap gap; Type AUK3 – Higher risk tap gap For more information or to talk to one of our sales team, call 01778 562810.

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Keraflo Aylesbury float valves are an accurate and efficient method of controlling the level of cold water stored in tanks with and without raised float valve chambers.

WRAS water regulations state that a water fitting or valve should not cause waste, undue consumption or misuse of the water supply. DWI and WRAS compliant or approved products have to go through a rigorous testing procedure to make sure every aspect of the design and construction comply with the regulations. Regulation 31 of DWI deals with products used in the treatment and distribution of water supplies. New requirements ask Manufacturers to meet Type AUK1 air gap and an appropriate WC performance specification to be suitable for use in a WC suite.
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There are a number of new requirements, most notably affecting the design of inlet valves for WCs.

203 0 obj <>stream ��A2#� Enduratank manufacture a large range of WRAS and DWI approved potable water products and have experts on hand to guide you through exactly what you will need to get started. In response, WRAS has issued new guidance for the WRAS approval of WC suites, flushing cisterns and inlet valves, which come into effect this month.

Obtaining advice on WRAS and DWI approved products. 149 0 obj <> endobj The new calculator is based on the ‘calculation methods’ set out in British Standard BS EN 13077:2008, and provides a guide to help ensure an arrangement satisfies the associated dimensional requirements and validation criteria. It provides details of the height of the spillover slot; the air gap distance between the inlet valve and the critical water level; and as the calculation method is used rather than the test method, three validation criteria. WRAS, Water Authorities & Regulations. When you are running your dishes through a wash cycle, the last thing you want is for them to emerge streaked with grime pumped in from your clogged garbage disposal. ½” – 3″. ii) … Rainscreen (min. EnduraMaxx SHOWS WHY THEY ARE THE ANSWER FOR MORE THAN JUST WATER AT CEREALS 2019, EnduraMaxx SHOW THE VERSATILITY OF ITS LIQUID MANAGEMENT PRODUCTS AT PLANTWORX 2019. ֳ���G�&�#B��r�k�M�r����Z�¨^�ηo�h2e���&�G��Ӫ�K|. The safety and well-being of our team, our customers and our suppliers is the number one priority for WRAS.

For more details about cookies and how to manage them, see our cookie policy. Discover our full range of product catalogues. An air gap is an amount of space that separates a water line from an ice machine drain to a sewer. Copies of the Directory are available from the Water Regulations Advisory Scheme (full address on the back page). Do you know the barcode, reference or name of the item? The Wirquin Macdee Silenta Air is the first inlet valve range to be WRAS Approved and is available to purchase from all well-respected pumbing merchants. An air gap is a simple way to make certain wastewater and contaminants never re-enter your clean water supply. Based on your location water will be provided by your local water authority. An important consideration if you are looking to provide drinking water is to ensure that the equipment used from the source of the water, up to the point of delivery to the consumer’s building is DWI and/or WRAS compliant. For the type AG air gap, the diameter of the overflow shall be a minimum of twice the diameter of the inlet.

It must be not less than 20mm or twice the inlet internal diameter ‘D’ of the inlet pipe whichever is the greater ; and All products are available to purchase on our new site!
"An air gap" means a visible, unobstructed and complete physical air break between the lowest level of water discharge and the level of potentially contaminated fluid downstream (critical water level) within a cistern, vessel, fitting or appliance, hereinafter called a receptacle, that: a. is not less than 20 mm or twice the internal diameter of the inlet pipe whichever is the greater; and. What you need to know about DWI and WRAS. To find your nearest Enduratank distributor, please complete the details below and we will get back to you. WRAS approval is an easy way to demonstrate compliance as it is granted directly by representatives of the water suppliers and is therefore accepted by every water supplier in the UK. Virtually Indestructible – the heart of the float valve incorporates pressure compensated rotating ceramic discs which are aligned in the open position. Wirquin Ltd are the first manufacturer to meet the new acceptance criteria, gaining WRAS Approval for their Wirquin Macdee Silenta Air Inlet valves; available in bottom and side entry. Sizes ½” – 3″, Aylesbury KAX Type – Delayed action float valve for tanks with raised valves chambers. https://www.wras.co.uk/news/latest/wras-wc-approvals-clarification/, https://www.wras.co.uk/search/products_and_materials/section-2075. In response, WRAS has issued new guidance for the WRAS approval of WC suites, flushing cisterns and inlet valves, which come into effect this month. h�b```�y���� ��ea��v����g�� 2L�[�7���^������������������Y(f`e�g���_!�!���ƾfq�S�*���ƭL�6[������y9C���R� How the Keraflo ‘K’ Type Float valve works. WIRQUIN LtdWarmsworth Halt Ind EstWarmsworthDoncasterDN4 9LS, Wirquin leads the way in new WRAS industry changes. Reduces Tank Wall Stress – the Aylesbury’s radical valve design significantly reduces stress on the tank wall fixing point. This means a non-mechanical backflow prevention arrangement of water fittings complying with Type AA, except the air gap is the vertical distance from the lowest point of discharge orifice which discharges into the receptacle, to the critical water level of … 3/8-inch air gap)36 story building 5 story building 4 story building Drainage Plane (e.g. Float Valves: Keraflo Aylesbury ‘KP’ type float valves include an in-line control valve with an Aylesbury ‘KB’ type float valve acting as a pilot. 180 0 obj <>/Filter/FlateDecode/ID[<6C79D355FF1ACD4798D175475BAE0428>]/Index[149 55]/Info 148 0 R/Length 133/Prev 150456/Root 150 0 R/Size 204/Type/XRef/W[1 3 1]>>stream

So what’s the difference between DWI and WRAS? endstream endobj 150 0 obj <>/Metadata 10 0 R/PageLayout/OneColumn/Pages 147 0 R/StructTreeRoot 14 0 R/Type/Catalog>> endobj 151 0 obj <>/ExtGState<>/Font<>/XObject<>>>/Rotate 0/StructParents 0/Type/Page>> endobj 152 0 obj <>stream Filed under: Blog, Potable Water Tanks, WRAS Approved Potable Tanks. Select a product type and refine your search accordingly. For complete specifications, product data, installation guidelines and ordering information about Keraflo Float Valves please browse the sections below. .. News Water Fittings Regulations WRAS Board Committees Resources History The pilot valve offers fully variable delayed action opening and closing water level settings for both mains or pumped systems.


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