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Discuss Radiator Single Entry Point in the Fittings & Pipes area at UKPlumbersForums.co.uk.

  1. jimmycooker

    jimmycooker New Member

    Hi, can anyone tell me if this is possible, and if i would need to fit the internal 'lance' to a some sort of valve? Or do radiators come with the lance already installed?

    WhatsApp Image 2019-03-29 at 14.24.44.jpeg
  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Twin pipe valve

    Not very efficient and tbh why ?
    • Like Like x 1
    • Agree Agree x 1
  3. Last Plumber

    Last Plumber Trusted Plumber GSR

    Yes it is possible. There were plenty around a few decades ago but I don't know if anyone still makes them.
  4. Brian Ashwood

    Brian Ashwood New Member

    Caleffi 450140
    • Like Like x 2
  5. Sparkgap

    Sparkgap Active Member

    Have a couple of single entry valves on my home system, been in for years. Work okay except one stopped for some reason, took valve out and found the 'lance' (injector pipe) had dropped off. Screwed back in and all okay again. Will be replacing with 'proper' connections when I upgrade the rads and fit TRVs. The injector pipe is about 9" long on a 3'6" rad and seems to get heat throughout the whole rad.
  6. Darren Jackson

    Darren Jackson Plumber GSR

    Not seen any twin pipe valves for a good while. We fit quite a few in the 80's & replaced them in the 90's. They work ok'ish but not very efficient for today's standards. and do not meet current energy efficiency legislations.
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