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valve

Recent contents Top users
  1. 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,
  2. 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...
  3. 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...
  4. 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...
  5. 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...
  6. 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...
  7. 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...
  8. 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...
  9. 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...
  10. 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...
  11. M

    Flush valve with handle

    Has anyone if this flush valve using the handle instead of the button? Are they good?
  12. 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!!
  13. 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.
  14. 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!
  15. J

    UFH with Capillary Type Mixing Valve

    Do people with this type of mixed flow temperature control have any problems with achieving the required manifold flow temperature? The one below I think is similar to the TIO Mixing unit. In the unit below, the hot (boiler) water enters from the bottom left, red arrow, up through the "mixing...
  16. H

    Muslim shower /bidet valve

    Hi. Could somebody recommend a Muslim shower valve that does not leak please? Or one that has a washer that you can replace if it leaks? Some sort of tap will be fine that you can connect the shower pipe to please, ideally in chrome? Many thanks in advance
  17. W

    URGENT Showers still running on a timed flow valve.

    Hello all. I have fitted three new Saracen timed flow valves to existing shower rooms. But these valves are still allowing water to flow from shower head and won't close off. I have tried various options and sorted other connections in the shower lines 5 on one line 3 on other. Only 1 new...
  18. R

    Gravity fed system not sure how this valve works

    This valve is fitted to the lower heating coil of the hot water cylinder Can anyone say what is the point of it I have been told its a thermostatic valve to control hot water temp so would have thought it may be in the wrong position ?Any explanations welcome
  19. T

    What nut for a thermostatic shower valve?

    I am fitting a thermostatic shower control. The flow knob fitting has a threaded section - 27mm OD - and it would be helpful to get a nut to go on it. Can anyone advise what I need and where to get it please?
  20. C

    3 zone valve question

    I have a CH circuit on a 2 way zone valve. It’s a long circuit with 15 rads on it but rather than shutting down the last 5 rads in the circuit when not in use which is 90% of the time, can I put a 3 zone valve on the flow after the tenth rad and divert to a new T piece on the return to...
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