valves | Page 5

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valves

Recent contents Top users
  1. W

    Do check valves work to prevent backfeeding on mixers with unequal pressures?

    Once both feeds are open the double checks on the feeds are open. So how would the double check then prevent back feeding with unequal pressures. Seen this fix suggested a bunch of times, mainly for kitchen mixers or bath fillers as showers should have equal pressures normally. But don't get...
  2. BuilderDan

    Multiple differential bypass valves

    Is it ok to have more than one bypass valve on a system? Planning an UFH system (heat source supplied by air-water heat pump) with 2 manifolds, each with 6 circuits. Each manifold has its own motorized isolation valve connected to a room thermostat controller. Obviously the system needs a bypass...
  3. P

    Removing two isolation valves in awkward spot (on heating pipework)

    Hi folks There's a couple of isolation valves on our radiator pipework (vented system). One started to weep a while back, but luckily stopped after a bit of tweaking. I've since learned they shouldn't be there, and so with some plumbing work coming up which will require a drain down, I'm...
  4. P

    heating zone valves

    Can I run a motorised zone valve and room thermostat from a 240V supply to control a single radiator when the heating is on? Meaning the valve will be open when the room is below the temperature set on room thermostat without turning the boiler on / valve will close shutting off flow to a...
  5. T

    Good reliable side-entry valves

    I am SO fed up with failing side-entry valves on toilet cisterns and water tanks. They've all been engineered down to something as flimsy as a milk carton, and they seem to last no time at all and start leaking. I'd happily pay more for a good quality one - but not twice as much for the same...
  6. Scott_D

    Zone Valves

    What are the best zone valves in your opinion? I mostly fit honeywell but as prices creep up I am thinking are they any better than danfoss, drayton EPH?
  7. S

    Rad valves with O-rings

    Some RAD valves come with O-rings, whereas the majority do not and I just wonder if one is better than the other or whether it makes no difference whatsoever? Reason I ask the question is that I have spent ages looking at valves and have settled on the ones in the link, but I’ve never used...
  8. P

    What are the regs on commercial kitchen gas solenoid valves

    Been asked to wire up gas valve in pub kitchen and all the gas fitter has left is a stop button, when I wired many of these for a catering firm years ago there was a control box witha current sensor that worked with the fan. What are the current requirements? Is there a minimum height betwwen a...
  9. M

    Low voltage gas valves

    I have noticed ideal have changed then gas valves to run on 24volts. Over 230volts. Is this to make the boiler more economical to run
  10. N

    Installing New Mixer Tap & Valves

    Hi, I'm installing a new mixer tap in my kitchen. The current setup doesn't have any isolation valves so was thinking I'd cut the pipe, install a couple of flat faced isolation valves and then screw the flexi's into that. My question is, should I be using PTFE on the threads, joining compound on...
  11. S

    Iso valves leaking

    I wanted to do some work on my ensuite shower but no way to isolate it. I removed a bit of platerboard from the wall in room behond it to expose the pipes (gery plastic Hepworth 15mm) and got a plumber out to fit a couple of isolation valves. Both valves are leaking very slowly, just a drip over...
  12. 1980sSnowboarderGuy

    Manual radiator valves help

    I’m in the uk and have a bathroom radiator with two manual valves, both of which leak slightly. i know that to turn my radiator off I need to turn clockwise, but for optimal setting, how far back should I turn them, e.g. 1/4 turn? and should I turn both the left and right valves, or just one...
  13. M

    Hi flow radiator valves for 1 pipe systems

    Hi Can anyone recommend a decent locksheild valve to pair with the Danfoss RA-G TRV? The RA-g is high flow but I can find a matching locksheild to suit on their site. Cheers
  14. B

    2 port valves or 3 ports valve ??

    Hi guys Is it better to have two 2 port valves or one 3 port valve to control the flow to either dhw or underfloor heating ? Cheers
  15. W

    Fluidmaster flush valves with the little handles

    Can someone who has fitted a good number tell me what customer reaction is like? Anyone seemed unimpressed or unhappy about the little handle or do people generally like them? Thanks
  16. B

    How can I fix a banging noise in CH system- 14 years new drayton and sunvic valves -sealed system?

    This started last night at 11.25 and has me completely flummoxed. A banging noise that is hard to track down. When I'm in Bathrooom that has airing cupboard it seems to come from hallway when in hallway it seems for come from cupboard. The system is a grant boiler in an outside house, purpose...
  17. M

    Will these isolation valves be ok like this for a few weeks?

    I’ve removed the sink from downstairs cloakroom as we are getting new flooring and a new vanity unit and sink installed over the next few weeks. I’m now thinking maybe these isolation valves may not be ok left like this?? If they were going to leak it fail in some way surely they would have by now??
  18. townfanjon

    UFH auto balance valves

    Guys , customer is having problems with his ufh , not heating enough ,cooling down etc etc,he wants me to fit some auto balencing actuators / valves , I have no experience of them at all, and honestly cant see the point of just trying them for the sake of it . System is in screed and is approx...
  19. D

    looking for behind the wall shower valves with only the tap being exposed in shower

    Are there any dual lever shower taps/regulators, which I can install behind my shower wall ... the distance i need to bridge is 12 cm... ?
  20. S

    Epic soldering failure on shower rough in valve, are inline shutoff valves the problem?

    Howdy I need to install a new rough in valve in my shower-bath. I bought a Delta 10000 UNBX and using the existing 1/2" copper piping was able to fit up the 2 inlets and pipe to the shower head and another to the tub, all 1/2 copper. The bathroom is on the ground level. In the basement right...
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