Discuss Why Aren’t Isolation Valves Compulsory? in the Plumbing Jobs | The Job-board area at PlumbersForums.net

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good pipe sizing has the effect of flow regulation

I agree but in my example i was refering to a 36 shower block pipe sizing helps to a degree but to size a plate heat exchanger and boiler you really need some exact flow rates - Building regs part L, conservation of power!
 
Hi

I hope this doesn't go off the topic.
I have replaced a tap on a kitchen sink this weekend however the two external wire enforced connection hoses came with female thread and the tap I removed had male thread which was connected to the pipe shortly after an isolation valve however the new tap came with two isolation valves ie one for hot and one for cold with male thread on both sides.
Is it ok to fit the second valve onto a section of pipe connecting to the kitchen sink or should I have drained down the system completely and put in new pipes with only the one set of isolation valves?
Water flow did not seem to have been affected.
 
Isolation valves & service valves all ways fitted on all with the company i worked with , and on all new systems some one had the pleasure of balancing all sinks, basin, baths showers, ect to manufactures instructions :)
 
Studies have shown that the UK wastes an estimated 3 billion litres of water every day, and water bills continue to increase year on year — yet there’s a simple solution that could help the country to significantly reduce its water consumption. Simon Cottom, MD of Cottam & Preedy, highlights the benefits of the company’s CP961 isolation valve.




When we consider water conservation from taps, shouldn’t we be looking at the heart of the problem? For years now the industry has vacillated over the best solution when, for more than a decade, the answer has been staring us in the face, in virtually every plumber’s merchant in the country.



So what is this wonder solution? Quite simply, it’s an isolation ball valve that provides the most reliable, future- proof means of regulating the water flow yet invented. If you haven’t encountered this valve yet, the reasons are not hard to explain. For many plumbers there simply isn’t the perception of a big enough cash return in it for them, and for householders the idea of water saving just isn’t top of the agenda when they are having that new bathroom or kitchen installed.



Yet very significantly, many architects — driven by both performance and ecological concerns — have latched on to the efficiency of these valves and are specifying them in both new-build and refurbishment projects, but that still leaves a vast swathe of missed opportunities.



Time for action



So what is to be done? Surely the only effective answer is legislation. If this seems drastic, just think about the alternatives. A White Paper that simply recommends a preferred flow rate places a big responsibility on a largely unregulated industry.



There are literally thousands of tap designs available to the installer, most of which are chosen by consumers on aesthetic rather than practical grounds. The temptation for installers to cut corners and bend the regulations for the benefit of a happy customer is considerable.



By making the installation of an isolation ball valve with flow rate control capabilities mandatory, all confusion and evasion is instantly eradicated. It really is that simple.



Foolproof solution



Any plumber can purchase a CP961 isolation ball valve and fit it just like any ordinary valve. With the correct cartridge installed, the flow to literally any tap is regulated to exactly the desired volume. Nothing else has to be considered. No calculations, no checking that the tap complies with legislation, no need to think at all, in fact.



It sounds idiot-proof, and it is. But until the control of water flow to taps through isolation valves is made law, it just won’t happen. Human nature will see to that.



And what of the future? Who knows what flow rates will be seen as desirable in ten, twenty or thirty year’s time if the predicted change in climate becomes reality? Once again the CP961 comes into its own. The flow rate can be adjusted in seconds simply by slotting in a different cartridge.



Already, this is a product that carries the Waterwise Marque and is included on the Governments Water Technology List, enabling tax benefits, but perhaps now an even higher level of recognition is appropriate.



In the current climate it is easy to fall into an unfocussed approach to water conservation, but a pause for thought reveals that there is a logical answer which has been overlooked for too long. Isn’t it time that such a fundamentally effective, foolproof solution as the CP961 isolation ball valve should be a mandatory component of our water saving strategies?


PHAM NEWS

whist im actually in favour of valves and drain off everywhere as they make life easier in the future
im totally against making anything that isnt vital to the presevation of life compulsory we have more than enough rules and regs in place already without some more being added
remember theres a whole department of civil servants trying to thing of schemes to fit the rest of the letters of the alphabet and we are paying for them
 
In Spain as far as I can see there are isolating valves on everything, with flexiables to the taps. Great but like all fittings depends on the quality, some are jammed up after a year. I remember having to crawl through lofts to find the valves at the back of the storeage tanks because it was the shortest pipe run,all about cost in the end.


Richard
 
I always prefer to fit flow limiters to reduce consumption. In my area the water pressure is high and cranking down service / isolation valves can cause horrible screeching noises when taps are opened.
 
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Reply to Why Aren’t Isolation Valves Compulsory? in the Plumbing Jobs | The Job-board area at PlumbersForums.net

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