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valves

  1. kieran

    Change 4 zone heating system to smart thermostatic radiator valves instead?

    I've just moved into a house for the first time where I don't just have a single heating zone. This house has a central timer unit and 4 room thermostats that control 4 Honeywell V4043H1056 valves beside an currently unidentified Johnson Starley combi boiler (although there is also a hot water...
    • kieran
    • Thread
    • heating heating system radiator system thermostatic valves
    • Replies: 11
    • Forum: UK Plumbers Forums
  2. A

    Under Floor Heating - one of the valves sticking?

    Hi - I'm not sure what these things in the picture are called, but water flows to each room when the "float" moves down, but one is stuck. Last year a heating engineer came and unstuck the valve by tapping on it with his screwdriver head. I've tried that, but no luck - three of the floats move...
  3. L

    Any ideas on how to bleed these valves?

    Hi all, my towel rail is only half heating up and I'm guessing it needs bleeding, thing is it hasn't got your usual bleed valves installed, so how do I go about bleeding this rail? Hmm it won't let me add pics??. Basically its a flat head screwdriver kind of valve head, I've tried searching on...
  4. J

    Two channel ball valves??

    This may be a silly question, but limitless googling has got me nowhere. Is is possible to source a Y/T valve with two separate channels (so four inputs, two outputs, where say in position 1 the first input connects to the first output and the second input connects to the second output, then in...
  5. D

    Rad valves in bathroom

    Hi guys, long time lurker, infrequent poster... I have a rad in my bathroom with a TRV, simple enough so far... The pin on the trv has seized. I have tapped, sprayed wd40, tapped again, sprayed, twisted, pulled, tapped, sprayed... And the pin just wont open,so ive come to the conclusion its...
  6. L

    15mm Towel radiator valves with 10mm supply

    I've bought a new chrome towel radiator as the old one is all rusty. I also bought new angled (standard) valves, 1/2" X 15mm as they too are old and rusty. But when I look at what comes out of the wall, it's clearly not 15mm pipe, looks more like 10mm (plastic). How have they gone from 15mm...
  7. ShaunCorbs

    .... Tf1 brass valves ....

    Are they 3/4” they don’t look 1” but might be wrong as pics don’t look 100%
  8. 1

    What is the best make of Angled radiator valves

    I have 10 radiators with smart TRVs fitted to angled radiator valves - some of these valves are weeping around the plunger shaft - the valves were fitted in 2012 and 8 years seems a short life (I suspect they were cheap!), so I want to replace all 10 valves with better quality valves - but need...
  9. ShaunCorbs

    Honeywell 2 port valves 22mm

    Anyone got any looking for 6 possible more
  10. M

    One pipe system valves

    Morning all. I hope you are all well. I have come across a one pipe system which basically isn't working. Client says it has never worked great but it has become a lot worse. I see the radiators that have been added later on have valves on both ends of the rad which I hear is a no no. I also...
  11. R

    Do these regulation valves also firmly isolate pipe work?

    Hi. Will this crane regulator valve act as an isolation valve too allowing for alterations? Many thanks.
  12. B

    Isolation Valves Query

    Hi what is the purpose of isolation valves on pipes? All of my tap pipes have isolation valves and should they be fully turned for the water pressure? Thanks
  13. D

    hot water secondary return check valves

    I,m about to change from plastic fitting to copper and want to add a check valve into my secondary hot water return line what prevents the hot water sucking the water out of the secondary return line the plumber that fitted it is no longer here so I cant ask why a check valve wasnt installed...
  14. R

    Failed motorized valves

    I have now had both my Danfoss HPA02 valves fail (hot water and central heating on an S plan). It is easy enough to replace the heads, but the failure mode in both cases has been the micro switch failing to open once the call for heat was removed. With the heating, we were away and came back to...
  15. N

    Would you fit additional isolation valves on boiler pipes?

    Hello everyone. This is a general question, so not linked to any jobs Iv done or 1 particular scenario. The question is would you advise fitting isolation valves on the hot, cold, gas pipes of a new boiler install? Just asking as Iv not seen any boiler installs with isolation valves on these...
  16. W

    Air gap incoporating inlet valves

    Seen these are now on sale in Toolstation. Is this a law change coming in? Non in Screwfix. From description sounds like you can fit a double check valve if no room? Pretty bulky looking things https://www.toolstation.com/plumbing/toilet-fittings/c902
  17. L

    Non-return valves for mixer tap

    Hi all, I'm planning on fitting my new sink which has a mixer tap. I'm using an unvented system, will this still require non-return valves fitted to the taps connections?
  18. ShaunCorbs

    .... Pump valves ???? ....

    Anyone use these ive used the silver with red handles before and they seemed ok but a tad on the expensive side around £22 they look An ok brand as I’ve seen the logo before maybe flowflex etc
  19. J

    Where to place water stop valves for shower ?

    Having a straight bath fitted and going for taps to the bath and an Aqalisa shower above. So the hot/cold pipes that supply the bath taps will they be different to the ones that supply the shower? I mean do I need separate pipes to the shower with their own valves or can the pipes that will...
  20. L

    Wanted; S Y & W plan valves and wiring centre - Used or Faulty

    Wanted; 2 zone valves, 1 midpoint valve, 1 3 port diverted and wiring centre - Used or Faulty Hi, I'm after the above so that I can a mock CH/HW setup to add to my electrical play rig (see link) I'm usually found on EF but figured here would be the more suitable place to ask if anyone has any...

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