All taps and fixtures should have mini stop taps so they can be isolated in an emergency. Types Of Flexible Tap Connectors. Although by itself water hammer will not cause failure, it is a contributing factor that can play a role in the final catastrophic failure of a flexible braided hose once it has been brought to a vulnerable point. Take a look at our range of flexible hoses, pipes and fittings, including tap connectors, from brands like Hep2O. However, the stainless steel braiding is appropriate for its function and it’s the leakage at the connection that is the issue. In late July, Plumbing Connection organised a Flexible Connector Workshop in Melbourne with a range of industry stakeholders to discuss what product types are failing and in what applications, the influences that lead to product failure and how to ultimately reduce the incidence of failures. Flexible hoses have various uses depending on which one you choose. “Unless the whole industry gets together and does something, we will still be talking about this in a few years,” says Shinners Plumbing owner Kevin Shinners. Providing that your flexible tap connector has a ½â€ Female BSP Thread then there will be no issue connecting this (HX29/15W) to it. Get it Tomorrow, Jan 29. Flexible ducts can speed installation by reducing the number of joints in a run and eliminating the need for elbows and offsets. Flexible tap connectors can also be bought with compression fittings on the end (see below) with or without isolation valves and in different lengths. “The manufacturers and suppliers of these hoses need to implement specific requirements about how flexible hoses are installed and maintained. £8.10 £ 8. This is where water temperature is 60° with 60ppm of chloride and 60% of yield stress. COVID-19 Update to Customers Customers can shop with us in-store or online with our Click & Deliver or Drive & Collect services. Forgive my ignorance, but I don't see how they would work. We use Cookies on our website. the connectors and tails - connecting the pipework. The presence of stored household cleaners in closed environments causes the level of chlorine in the air to rise to measurable levels because many common cleaners contain chlorinated chemical solvents, liquid chlorine or crystallised chlorine chemicals. It’s important for the plumbing industry to start a discussion and begin educating plumbers, manufacturers, TAFEs, insurers, regulators, government and consumers about the risk of flexible hose burst failure. “Alpha-beta brass had been used, which is cheaper but more susceptible to de-zincification corrosion, and had not been carefully controlled during the manufacturing and thermal cycling process. Hi Cos. Did you mean replace the flexible Monobloc tap tails with your suggested speedfit Flexi tap connector. There are also concerns that manufacturers are actually writing their own interpretation of the Standard, with one supplier on the shelves of a prominent Australian outlet providing a selective product warranty that “covers domestic use only and not for commercial applications”. There are suggestions that these low-quality products are able to make it to market by unscrupulous suppliers that are defrauding the WaterMark product certification system with what’s known as the ‘golden sample’. I've had to do it many times. They also overcome alignment problems and significantly reduce labour costs and noise in pipe work, as well as eliminate brazing, welding, cutting, re-shaping and waste. At Toolstation, we also stock flexible tap connectors with isolating valves. “Stainless steel isn’t impervious to corrosion and can become vulnerable when put through certain conditions. Designed, manufactured and assembled in the UK by John Guest Speedfit. These flexible tap connectors are useful in systems where a gentle bend is required. Flexible tap connectors, or flexi hose, are a convenient way of connecting taps and appliances to the mains water supply. The aim of this workshop was to start the discussion process about ways the plumbing industry can take the issue forward. Over time, the popularity of these connectors has lead to them being included with the supply of many tapware ranges, whether mixer or hob mounted, and other fixtures. Qty: Speedfit Flexible Hose 15mm x 15mm 500mm - FLX21P (985641) Trustpilot. IAG has even labelled flexible connectors a ‘ticking time bomb’ and put notices on its website advising home owners that flexible hoses have a lifespan of between five and ten years, and should be checked by a licensed plumber every two years. 10. If you are working on a bathroom or kitchen repair, we also have a huge selection of tap parts – so you’re sure to find everything you need. “It’s still only a small percentage of the industry that realises this issue is happening,” says Trevor. The water is then in direct contact with the area where the rubber tube of the hose and the stainless steel braiding are crimped.”. “In most cases cleaning products are stored in bathroom, kitchen or laundry sink cabinets where there is high humidity caused by condensation from hot water being run through the taps and bowls above the cabinet,” says Tom. Monobloc Tap Tails, Flexible Connectors & Pull Out Tap Hoses. “Additionally, less mass means quicker corrosion.”. Abey Australia general manager Geoff Anderson says that generally the 60/60/60 rule will enable stress corrosion cracking to occur. “These end in the same result, which is corrosion of the stainless steel braiding, leading to wire breakage and then the rubber tube expanding and bursting,” says Trevor. “Chlorine dissolves in humidity and forms hydrochloric acid, which is highly corrosive. Trevor says he has come across flexible braided hoses where the brass barb fittings were not properly manufactured or heat treated. These flexible tap connectors are useful in systems where a gentle bend is required. With the tap being turned on a few thousand times, the hose flexes back and forth, causing a weaker braid to fail regardless of whether the braid has broken,” says Tom. Typically, they are used in places where there’s not enough space to plumb in a connection with pipe. The presence of water exterior to the hose is required for corrosion, which is why most failures are seen under kitchen, laundry and bathroom sinks, toilets and dishwashers, rather than on connectors to gas stove cook-tops. Trustpilot. And to Best.. Want to use flexible tap connectors (maybe John Guest). /wcsstore7.00.1066.986/WolseleyStorefrontAssetStore/, https://www.wolseley.co.uk/webapp/wcs/stores/servlet/CategoryOnlyResultsDisplayView?catalogId=12001&categoryId=403186&langId=44&storeId=10203. Rated 5 out of 5 by AlphaPlumber from flexible friend ideal flexible pipe for gravity systems. 15 £9.54 £9.54. Hep2O Flexible Tap Connector 15mm x 1/2" 300mm 2 Pack - HD125A/15W (616869) Trustpilot. Sort by. You can find out how to manage cookie preferences on our Policies page. Since the cracks caused by stress corrosion cracking are so fine, they are difficult to detect,” says Geoff. Flexible tap connectors are usually made of stainless steel, although there are also plastic options available. See the project link above to Speed Fit plumbing. You can use tap connectors from your garden area so you have the water coming to the length where you could wash your car. Trustpilot. Over time the process continues and the chloride level increases in the deposit until it reaches a level that enables localised corrosion of the stainless steel to occur. The thing to watch out for is twisting of the flex hose while tightening. Bent Tap Connector Product Description . Check out our range of Flexi Connectors products at your local Bunnings Warehouse. Tightening the nuts is also an issue where the installing plumber hasn’t torqued one or both of the nuts sufficiently. increased bore size offers better flow rates if using low pressure from a tank etc. “Once the water reaches 60°, the evaporation process leaves behind a deposit of chloride. Made from durable stainless steel and reinforced rubber, you can be sure that these hoses are both durable and long lasting. They also easily conform to oval as well as round connectors. Choose from the range of highly durable, quickly and easily installed options, some being demountable and reusable. When enough of these strands fail, the steel sleeve is no longer able to support the inner lining and water pressure causes the lining to bulge out of the sleeve. At the workshop hosted by Plumbing Connection, there was consensus that the current AS/NZS3499:2006 Water supply – Flexible hose assemblies needs to be updated. Re: How much bend can a braided supply line have/ Author: Fixitangel (NC) A slight bend in a flex hose is OK. Screw the flexible tail onto the end of this. “Changes to the Standard need to reflect technology and practicality. The rubber tube lining in flexible connectors expands when pressurised and the braided layers of stainless steel are designed to prevent this tube from further expansion. Center CB flexible tap connectors 30cm x 15mm x 1/2" (Pack of 2), Center CB pushfit flexible tap connectors 15 x 15mm (Pack of 2), Center CB isolation flexible tap connectors 15mm x 1/2" (Pack of 2), Tradefix flexible tap connectors 30cm 15mm x 1/2" (Pack of 2), Tradefix isolation flexible tap connector 15 x 1/2" (Pack of 2), Center CB flexible tap connectors WRAS 30cm 15mm x 3/4" (Pack of 2), Tradefix flexible tap connector 30cm 15 x 3/4" (Pack of 2), Center CB M12 monobloc flexible tap connectors WRAS 15mm (Pack of 2), Tradefix flexible tap connector 30cm 22 x 3/4" (Pack of 2), Center CB M10 monobloc flexible tap connectors 15mm (Pack of 2), Center CB flexible tap connectors WRAS 30cm x 22mm x 3/4" (Pack of 2), Center CB flexible tap connectors WRAS 50cm 15mm x 1/2" (Pack of 2). The current version was last reviewed in 2006, with a small amendment in 2009, and since then there have been many regulatory and technological changes,” says Tom. Based on analysis of burst flexible connectors, it seems to be the braided stainless steel component of the product that is failing. Over time this loosens the nut and there’s less contact pressure on the seal face, allowing water to leak.”. I think that’s probably going to solve a lot more problems compared to the Standard.”. £8.90 per pack. Flexible Double Ended Tap Connectors. Chloride is present in natural waters from the dissolution of salt deposits and as a result, Australian drinking water has low chloride levels of up to 350mg/L. You can always trace a leak path in these hoses and all the ones I’ve seen have had a leak path at the connector.”. Flexible Tap Tails & Connectors - flexible tails for suitable all monobloc taps, rigid copper tap tails & replacement hoses for pull out taps. Working out why this is happening and how it can be prevented isn’t as simple as pinpointing one cause and one solution. Our most popular style of Flexible Tap Connectors, Standard and WRAS, are available in a wide variety of sizes and lengths and can withstand working temperatures of up to 70 degrees. However, it’s unlikely consumers will heed this warning and it seems the onus is on the plumbing industry to collectively work together to do something about this issue. your car park area may not have a water source. This means if you have the unfortunate experience of the flexible hose breaking and leaking full bore water, a valve under the sink or basin can be turned to stop the water. Skip to content. Common household cleaners kept under sinks and cupboards create a ‘fume cupboard’ environment in areas where flexible braided hoses are installed and is a potential second source of corrosion causing flexible connectors to burst. Over time, the popularity of these connectors has lead to them being included with the supply of many tapware ranges, whether mixer or hob mounted, and other fixtures. The most important thing is prevention Paramount to preventing flooding in your home is to have a licenced plumber install all flexible water hoses, or check those already installed to professionally confirm the integrity of the product. Flexible tap connectors are usually made of stainless steel, although there are also plastic options available. Safe Work Australia re-opens workplace exposure standards review, Give your old boots the boot with Blundstone, Boards, directors must get ‘hands on’ to avoid falling foul of new industrial manslaughter laws, SAI Global: Upcoming boom in public-private partnerships to facilitate fast recovery, The Green Drain™: providing protection from pathogens, Abey Australia general manager Geoff Anderson, PROVE Standards and Engineering plumbing test consultant Terry Nguyen, Metropolis Solutions chartered loss adjuster David Pockett, Metropolis Solutions forensic plumber Russell Kirkwood, IAPMO Oceania technical manager Glenn Tate. Pair of Compression Flexible Tap Connectors 15mm x 1/2" BSP Hose Tap Flex Connector 300mm with Isolator Valves. According to Trevor, this can cause the rubber seal to react by compressing over time and forming a permanent stress. If the stainless steel fails, the rubber inner core will expand to a point where it bursts. Yet the experiences of attendees at the workshop suggest some flexible hoses are bursting within a couple of months of installation. Note that these can cope with up to a water temp of around 65 degs C. With the combi boiler I have, if the CH is running, the water from a hot tap may initially run much hotter than the temp set for hot water on the boiler (Worcester Bosch) and the temp limit of the flexible connector might be exceeded for a short time. The stainless steel braided sleeve corrodes, causing the rubber inner tube to expand and burst. Made from ethylene propylene diene monomer (EPDM) rubber or PEX and armoured in braided layers of stainless steel, these hoses replaced standard copper pipe installations from wall outlets to taps in kitchens, bathrooms, hot water services and laundries. Connecting taps to basins, baths, and sinks . The ones currently in use are 400mm long and around 60mm too short. Get your plumber to install Arco valves or mini stop valves on the water lines that have flexible hose connections. After this, use an isolating valve to fit the compression onto the valves and then tighten it up. These remain in the air long after the product has finished being used. With the price of flexible braided hoses continuing to drop and a number of new products entering the market, there are concerns that the quality of steel and brass components being used in some hoses are contributing to the early failures being seen in the field. Flexible hoses are very versatile and significantly reduce the time it takes to hook-up hot and cold water pipe appliances, such as taps, dishwashers and water heaters. General insurer Budget Direct says on its website that this is compromising the integrity of flexi hoses in homes as DIY is more likely to result in flexible hoses being damaged at the time of installation, which then increases the chance of bursting. Too often, the damage is invisible, an internal flaw caused by undue forces. In a choice of fittings, our range of flexible tap connectors are available in different lengths to suit the taps in your home. More buying choices £7.99 (4 new offers) Plumb-Pak PF258 15mm x 3/4-inch x 300mm Flexible Iso Valve Tap Connector. Push-fit bent tap plastic fitting for the connection of plastic and copper pipe. They eliminate the need to rigid compression fittings and fashioning small sections out of pipe. They eliminate the need to rigid compression fittings and fashioning small sections out of pipe. This will allow you to continue the system in Hep 2 O. The pitting locally reduces the cross-section of the wires to a point where overload failure occurs (due mostly to the hydrostatic water pressure),” says Metropolis Solutions forensic plumber Russell Kirkwood. Common household cleaners stored under kitchen or bathroom sinks where flexible braided hoses are installed can create fume cupboard environments that corrode the braided stainless steel sleeve, leading to bursting hoses. In July Plumbing Connection hosted a workshop with industry stakeholders to discuss the issue of bursting flexible braided hoses. By continuing, you agree to the use of cookies. on some of these taps (like the 2 I just fitted) you can remove the lower part of the "column" for access to the flats on the ends of the flexis where they go into the tap. From small repair jobs, to brand new fit outs, our selection of flexi hose has got you covered. At Wolseley we’re the trade’s pipe specialists, so you can rely on us to have the flexible tap connectors you need to get the job done with the minimum of fuss. Representatives at the workshop discussed the possibility of proposed changes to the Standard, including introducing a minimum wire diameter for the stainless steel braid, future testing for things like corrosion, markings on the inner liner of hoses to identify manufacturer and changes to the classification of hoses. It's just that a standard washing machine hose 10 bar pressure at 25c is recommended to be changed every 5 years or so and these flexible hose connectors are rated only slightly higher at 15 bar pressure with the only difference being the braid. View Basket Under any amount of tension, this can make a “corner” in the cable which violates the bend radius limits. Bend Radius can be critical to the installation of coaxial cables — especially where the routing of the cable passes by or through structural elements where an edge may touch the cable. There are now approximately seven million flexible connectors sold annually in Australia and some of these are low-cost products from as little as $3-$5 from hardware stores. View Basket This leads to the lining rupturing and water escaping. Trevor agrees that there are things within the current Standard that are not ideal but says because many of the issues causing burst flexible connectors may be the result of incorrect installation, a change to the Standard will not have much of an impact. There are now approximately seven million flexible connectors sold annually in Australia and some of these are low-cost products from as little as $3-$5 from hardware stores. Register a trade account with Wolseley today to get access to our innovative shower selector tools, PartsArena, rapid reordering and free delivery on all orders to your home or site. “Where the nut is connected at one end under the sink or to the mains water its fine but when it comes to tightening up the second nut, which connects to the tap assembly, the design is such that the first nut can become loose,” says Trevor. D – Speed Fit Tap Connector. Click and Collect is available or enjoy free UK delivery … The aim is to produce a microstructure with ‘islands’ of beta phase but when they interconnect, forming a continuous network, once corrosion occurs it creates a continuous pathway allowing water to pass through the cross-section of the barb fitting from the inside to the outside surface. You can also click and collect from your local branch. Free click & collect. Visit us today for the widest range of Plumbing Tools products. There are fears that eventually insurance companies will begin disallowing claims if customers can’t prove installation by a licensed plumber as well as regular maintenance. Other than poor quality, the majority of these reasons are not due to the connector itself, which suggests the issue of bursting flexible hoses is largely preventable. “Some rubber does have a memory effect and will shrink. What follows is a range of causes that can compromise the integrity of the flexi hoses in your home, followed by ways you are more likely to prevent them. There are various reasons why this leakage occurs but four main issues arise based on experience in the field. Flexible Tap Connectors are highly stocked items which can be used for taps, sinks, bathrooms and more. A flexi hose, also known as flexible tap connectors, are used to connect taps to the water supply and are a great solution when connecting taps in confined spaces. “Mixer taps can be closed in a fraction of a second and the faster the tap is isolated, the higher the pressure shock. A flexible pipe allows a pipe to bend and is especially useful for connections in small, tight & awkward spaces. According to research conducted by general insurer IAG, flexible braided hoses accounted for 22% of water damage claims in Australian households in 2016, with the claims most likely to be for kitchen and bathroom damage. Our thanks go to the attendees for their time. The first braided stainless steel flexible hoses came onto the Australian market as far back as 25 years ago and quickly became popular with the plumbing industry. 4.7 out of 5 stars 79. Over time these chloride levels increase in the deposit creating pitting corrosion. Made from durable stainless steel and reinforced rubber, you can be sure that these hoses are both durable and long lasting. “This is primarily caused by a slow leak at the connection point, which runs down the hose into the braided stainless steel and leaves a deposit of chloride. With a flexible design that’s ideal for plumbing in confined spaces where rigid pipes won’t work, a flexible tap connector can be shaped and adjusted to fit your system to provide a reliable, robust and watertight connection. Recent data released by insurance companies, including NRMA Home Insurance and general insurers IAG, QBE and Budget Direct, shows flexible braided hoses that have leaked or split are the number one cause of internal flooding in Australian homes. These are installation, the effects of water hammer, the quality of materials in the manufacturing process and household cleaning products being stored within the vicinity of flexible braided hoses in homes. Russell and Trevor both suggested installation issues are playing a big role in bursting flexible braided hoses, particularly in regards to the tightening of the nuts at either end of the connectors. ???SEARCH_AUTO_SUGGEST_CACHED_ACCE_REGION??? Get it Saturday, Jan 30. Shinners Plumbing owner and Master Plumbers Association (MPA) Victoria vice president Kevin Shinners. At Wolseley we’re the trade’s pipe specialists, so you can rely on us to have the flexible tap connectors you need to get the job done with the minimum of fuss. There appears to be no 10mm thread to connect to the tap and they are only 300mm long. This is a Speed Fit tap connector where the brass nut tightens onto the thread of the tap and the pipe is pushed directly up into it. This article primarily focuses on the performance of the EPDM tube version. The company, which is an Australian manufacturer of flexible braided connectors, uses a minimum wire size for braiding of 0.23mm. not as flexible as smaller bore ones but you can't have everything. But the physical properties of flexible ducts that create advantages are also the source of potential problems if care isn’t taken during installation. These come in a wide range of lengths and diameters to suit your current setup. Pressure well above 500kpa can be experienced by modern fast-closing tapware and this generates massive shock pressures within the piping system.”. Regardless of how the industry decides to take this issue forward, it’s important that action is taken soon. Are brass male socket adaptors designed to fit to flexible hoses from a tap? “When you tighten the first nut, the second nut can actually partially loosen off again if the ferrule isn’t gripped or held at the first end.”. Basket, Click on more info to Add to order and more. A fantastic variety of brands, lengths and threads to choose from. Stainless-steel flexible tap connectors are used to connect taps to the mains water supply, especially when space is limited. Simply push the bent tap fitting fully onto the pipe and twist the plastic nut clockwise to lock in place. What is the lifespan of these braided flexible hose connectors that are commonly used to connect to taps? Tap connectors flexible are a great solution when you have to connect spaces where there is no water supply. Aquaknect Flexibles general manager Tom Davies says he also has concerns about the wire size being used on the braiding as a weaker braid is more likely to fail. “There’s a significant risk here for the home owner and it’s likely to get far worse given the high rate of losses insurers are currently reporting due to these flexible connectors,” says Metropolis chartered loss adjuster director David Pockett. £21.59 each. Therefore the number of failures in this environment caused by corrosion is high.”. In this video, we learn how to connect flexi-tails properly. NRMA Home Insurance says the average claim for escape of water in 2016/2017 was $4,818 (excluding excess and GST) but there have been reports of some claims costing tens or hundreds of thousands of dollars. Phillip Woolhouse has more than 30 years experience in the plumbing sector and is the principal consultant at Phil Woolhouse Hydraulics in Perth. Filter (0) Categories. First, take your flexi-tails and grab one with a female end that will screw onto the end of a male. Starting a discussion about the issue of bursting flexible braided hoses is an important first step but action needs to be taken to bring the problem to the attention of regulators, government, TAFE’s, manufacturers and consumers. For e.g. “This is the minimum for us but there are some manufacturers where the largest wire is 0.15mm, which is 33% thinner, and you can see through the gaps to the rubber underneath. This corrosion eats away at the individual metal strands of the steel sleeve, which eventually fail and break. The durable but flexible design of a flexi pipe will provide you with a long-lasting connection of water supply without hassle of trying to align pipes to match up in awkward, confined spaces, offering complete flexibility for any required angle or offset. Choose from a range of connector types and lengths, with common 15mm diameters as well as other larger sizes. The rise of the DIY culture in Australia and the low cost of these connectors are also increasing the likelihood of flexible hose failures, as they encourage handymen to attempt installations themselves. 4.7 out of 5 stars 68. 15mm X ½"? This slight loosening leads to a slow leak that allows water to migrate across the rubber seal face down to the back face of the nut and eventually onto the braiding. He says the speed at which modern tapware can be isolated puts the rubber seal under constant force. Materials Solutions Australia (MSA) engineering director Trevor Rowlands says pulling apart burst flexible connectors clearly shows the moisture path and evidence of corrosion. Once the tap is securly fixed into place you can now go ahead and connect up any pipework. Flexible Tap Connectors. Aquaknect Flexibles general manager Tom Davies. Image supplied by Neil & Craig Baker Plumbing – NSW. £9.15 £ 9. IAG executive manager for short tail claims Cheryl Chantry says properties between 11 and 30 years old are most likely to suffer an escape of water claim as flexible hoses generally only last 10 years. View Basket Use flexible tap connectors where access is restrictive. 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