valve

  1. N

    Replacing a Radiator Valve on a Boilermate 2000 system.

    My daughter's place has a small water leak on a ground floor radiator valve. The radiator pipework is small diameter.i.e 8 or 10 mm. A plumber is coming back in a day or so to make necessary repairs. I am a little concerned as the house has a Boilermate 2000 on the upper floor and the...
  2. S

    Possible Leaking Gravity Fed Hot Water Cylinder Valve

    Hi all. This ‘valve’ is at the bottom of our domestic hot water cylinder. Anyone have any idea what it is please? It must’ve been there for many years and seems to be leaking.
    • s11lko
    • Thread
    • cylinder gravity hot water leaking valve water water cylinder
    • Replies: 4
    • Forum: UK Plumbers Forums
  3. T

    Unused Stopcock Valve Crusty

    Hi Folks, Over the weekend, my wife insisted that I cleared out a junk cupboard in our utility room, in doing so I discovered a stopcock (that we have never used) had a load of crust around it. It looks to me that at some stage it probably leaked and sealed itself. I've never used it as it's...
  4. J

    Old un-pressurised heating system - top up valve

    Hi All, I hope you are doing well. I have old un-pressurised heating system and I need to top up the water but I cannot locate the bloody valve. Where is it? Is it in the attic? I also have this valve with black screw on top. Should this be opened or closed? Thank you
  5. B

    Noise from 8-Bar filling valve (Megaflo)

    In our sealed Megalo system, when hot water tap is used (say in bathroom shower) the megaflo is taking in some fresh water, I guess to compensate for the water used. The incoming water go via a pressure relief valve [most likely its this one: Heatrae Sadia 8 Bar Pressure Relief Valve -...
  6. T

    Can I use push fit type tap connectors on toilet fill valve

    Hello, I have a troublesome fixed 15mm copper pipe with isolation valve going to my toilet fill valve. It's too tight for a Flexi hose. Can I use a push fit tap connector instead which will give me more flexibility in fitting?
  7. B

    What is this valve?

    Forgive a very basic question, but what is this device? It does not appear to be a normal isolating valve but there are two of them in the feeds to the kitchen tap,
  8. L

    Part drain, complete drain or isolate single rad to fix weeping valve extension?

    Hello Plumbers I’ve replaced a 540mm high cast iron rad with 740mm high, like for like but still a 20mm valve extension was required. All was ok until I've spotted a v small leak (like 1 drip per hour) between the valve nut and extension piece. So I suspect I just need more PTFE + compound...
  9. B

    TRV Valve is leaking out of pin

    Rad is leaking from TRV valve, seems to be seeping out of where the pin comes up. I tried tightening up the nut below the pin, but that didn't help. I then looked online and saw that removing the nut and packing with some plumbers tape may help, but whenever I try to remove the nut a load of...
  10. P

    Cant get boiler Viessmann diverter valve out!

    I need to replace the diverter valve - I unscrewed it from the hydraulic block but for the life of me I can't get it out. I even spoke to Viessmann tech and they advised twisting and yanking hard but this tosser is not budging AT ALL. The valve was replaced 2 months ago by someone else. Is there...
  11. D

    Nu-heat Blend valve not working on underfloor heating

    Hi, I have I blend valve from Nu-Heat ( they bought it from Reliance, as per attached spec). I have dismantled the valve now 3 times and replaced it with new components from Nu-Heat but the valve is not working properly. The valve replacement seems very simple with 4 main components and some...
  12. T

    Isolation Valve Old Leak

    Hi, Throughout our house there are numerous isolation valves which are on almost every plumbing fixture. Clearly whoever plumbed this had a thing for using them but I have heard elsewhere that they cause problems and are prone to leaking, especially when used after long periods. I noticed a...
  13. D

    Diverter Valve Operation

    Trying to find out exactly what happens when my system boiler is called to supply the radiators and hot water cylinder at the same time. For example today, whilst the boiler was on heating the water, the room stat triggered the boiler to supply the rads. The diverter valve installed in the...
  14. W

    "Fire hydrant" valve - wrong way round?

    Hi, I am going to a job tomorrow where the customar says they have a 1 inch square valve head (what i would call a fire hydrant valve, maybe theres another name) in a manhole that turns the wrong way ie. Anticlockwise is off and clockwise is on. I'm in the Midlands and customer says some...
  15. FRAM777

    REPLACEMENT BLENDING VALVE

    I need to replace a 3/4 or 22mm blending valve on a Telford Trident electric hot water boiler. see attached picture of the original part. Telford asked me 100£ for the part and refused to provide the technical details. I am pretty confident this is not a proprietary part and similar parts...
  16. B

    Central Heating T up & downstairs, valve to restrict upstairs?

    Hi, I have 3 port value for HW & CH. Loft extension added many years ago so they added a T to go upstairs, only 2 rads up but 11 downstairs covering at leave twice the floor area As per diagram has free flow Up or Down, no way to balance. Works pretty well but last few Rads (in kitchen) are...
  17. M

    Flush valve with handle

    Has anyone if this flush valve using the handle instead of the button? Are they good?
  18. R

    Broken Radiator Valve, what's the solution?

    Hi Everyone, The metal spindal on the top of one of our radiator valves is snapped off and the radiator is always off, is there a quickish fix for this or will I have to drain the whole system to replace it, pictures inculded, thank you!!
  19. C

    Need help to find sealing washer for this flush valve.

    Hi all, can anyone identify this flush valve, there are no manufacturers marks on it, the seal needs replacing, thanks.
  20. P

    Changing a system fill valve

    Hello, I want to change the system fill valve, but I’m struggling to dismantle the existing toilet to access underneath the tank, I’ve added some pictures can anyone advise of the steps? Thanks!

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