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Discuss Would you agree this valve is suitable for use as a stopcock? in the Water Regulations area at UKPlumbersForums.co.uk.

  1. Ric2013

    Ric2013 Plumber

    Pegler Yorkshire -

    Pegler Yorkshire Tee Ball Valve 15mm Blue | Ball Valves | Screwfix.com

    G2.8 in the WRAS guide to the regs says 'spherical type valves may also be used in all sizes'
    R2.8 in the WRAS guide to the regs says '[o]ther types of stopvalves and servicing valves may be used provided they conform to an appropriate British or European standard, or the Regulations, and are suitable for the purpose.'.

    This is full bore, rated at PN16, and WRAS approved.

    I think it's suitable. Would you agree?
     
  2. ShaunCorbs

    ShaunCorbs Trusted Plumber GSR Top Contributor!!

    No use a normal 15-22mm mains brass stop tap
     
    • Like Like x 2
  3. Ric2013

    Ric2013 Plumber

    Thanks. Your reasoning though?
     
  4. ShaunCorbs

    ShaunCorbs Trusted Plumber GSR Top Contributor!!

    Stop tap has been used for decades with no problems other than normal wear and tear
     
    • Like Like x 1
  5. Masood

    Masood Guest

    The same could be said of so many things but materials, design and manufacturing processes improve all the time.

    I see no reason for not using that valve although I prefer the lever type as they are a bit easier to operate.
     
    • Like Like x 3
  6. joni os

    joni os Plumber

    For the extra £1 go for one with a lever. The valve may not be operated for many years but when needed the reassurance of a lever will be worthwhile, especially for someone with weak grip or arthritis .
     
    • Like Like x 1
  7. Neil K

    Neil K Plumber GSR

    I was taught in my apprenticeship not to use lever valves on cold water mains as they could/can cause water hammer
     
    • Like Like x 1
  8. Masood

    Masood Guest

    It's true they do about rapidly and can cause hammer but they're not in daily use so I don't think it's a big deal really. The reliability and ease of use more than makes up for it IMO.
     
    • Like Like x 4
  9. rocketmanbkk

    rocketmanbkk Plumber

    Should it not be full bore to use as a stop tap? Any regs to say yea or nae?
     
  10. Matchless.plumb

    Matchless.plumb Trusted Plumber Top Contributor!!


    The reason I wouldn't install such a valve would be water hammer . If you have a normal brass one you literally hit the water off in a soft and gentle way without . It's just my opinion had to change few of them as a result of leakage , stuck, etc...

    But just my opinion
     
  11. Matchless.plumb

    Matchless.plumb Trusted Plumber Top Contributor!!


    Sorry just related you didn't see you mentioned it
     
  12. gassafe

    gassafe Plumber GSR

    I thought the stop taps had that that anti back flow type washer or something... I would much prefer a nice lever valve on th incoming supply! We all get the stop Taps that are too tight or still pass water...
     
  13. NRS

    NRS New Member

    They don't comply with the regs; no back flow prevention built in like a stopcock which has a loose jumper for said reason
     
  14. joni os

    joni os Plumber

    Would not want to rely on stop tap as backflow prevention device. Most loose jumpers, after years of remaining in open position become difficult to rotate and highly unlikely to remain loose enough to fulfil an anti-backflow function.
     
    • Like Like x 1
  15. Best

    Best Trusted Plumber Top Contributor!!

    On this forum the same subject was posted and it was said that stopcock had to be fitted for regulations. Probably because it is anti back flow.
    Although I prefer lever valves for everything, stopcocks are better in one point, - they can't be knocked on accidently, unlike a lever valve. I wouldn't want to turn a lever valve off and rely on the customer or any children not knocking it on and flooding where I am working at. I do remove the lever temporary for safety though.
    Best solution is a stopcock on mains pipe with a lever valve directly above it for ease of use.
     
    • Like Like x 1
    Last edited: Feb 2, 2016
  16. Ric2013

    Ric2013 Plumber

    Just seen this thread has been resurrected.

    To answer two points:

    1. Water Regulations now prohibit a loose jumper in a stopcock. I know it used to be the opposite, and the C&G book of lies has yet to catch up.

    2. I'm not sure if full bore is specified, but I'd argue that if the valve weren't full bore it would not be suitable for use as a stopcock. My valve was full bore though - my feeling was that it would, therefore, be less restrictive than a BS1010 stopcock.

    I take the point about water hammer - and the accidental opening being easier!!
     
    • Like Like x 1
    Last edited: Feb 9, 2016
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