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Isolation valve

  • 16-11-2017 11:55pm
    #1
    cosmowillie53
    Registered Users, Registered Users 2 Posts: 445 ✭✭


    Hi all.
    There is a slight leak (drip) from an isolation valve beside my heating circulating pump.
    Is there a way I can stop it without replacing the valve..
    Thanks


Comments

  • #2
    dok_golf
    Registered Users, Registered Users 2 Posts: 1,090 ✭✭✭dok_golf


    Where is it dripping from? Chances are you need to turn off water, drain down tank, open valve, wrap some plumbers tape around threads and then do the reverse of the above


  • #3
    cosmowillie53
    Registered Users, Registered Users 2 Posts: 445 ✭✭cosmowillie53


    drip is from the isolation valve.. which is a left or right screw as far as i know.


  • #4
    Jim 77
    Registered Users, Registered Users 2 Posts: 96 ✭✭Jim 77


    If the leak is coming from the stem then try fully opening and closing the valve several times, it may be that some limescale or debris has lodged around the valve sections. If that doesn't work you'll either have to take it off and clean the innards or replace it.

    Where the leak is from a nut then you could just try tightening them even more. I've seen plumbers do this beyond what seems possible but they probably have a good feel for the limits of a compression joint. If you have the time and the necessary skills then it's better to drain the system and refit, repair or replace the valve.


  • #5
    Sleeper12
    Registered Users, Registered Users 2 Posts: 17,189 ✭✭✭✭Sleeper12


    Can you post a photo?


  • #6
    agusta
    Closed Accounts Posts: 1,590 ✭✭✭agusta


    It is a common problem with these screwdriver operated pump valves. The permanent solution would be to drain down the system and replace both valves with "gate type" pump valves.


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  • #7
    me4many
    Registered Users, Registered Users 2 Posts: 284 ✭✭me4many


    agusta wrote: »
    It is a common problem with these screwdriver operated pump valves. The permanent solution would be to drain down the system and replace both valves with "gate type" pump valves.

    Thanks for all replies above...
    Yes, it's the screwdriver type.(maybe a very small Allen key fits).
    While draining the system would be the ideal way to go it's probably a bit more than I'd like to take on.
    I thought there might be a clever little plumbers trick to sort it out in the short term.
    Thanks for the help.


  • #8
    BarryD2
    Closed Accounts Posts: 4,732 ✭✭✭BarryD2


    agusta wrote: »
    It is a common problem with these screwdriver operated pump valves. The permanent solution would be to drain down the system and replace both valves with "gate type" pump valves.

    I think 'gate type' valves are inclined to weep, the sort with a knurled handle that operates it. The lever types seem more reliable.


  • #9
    Needles73
    Registered Users, Registered Users 2 Posts: 599 ✭✭✭Needles73


    BarryD2 wrote: »
    I think 'gate type' valves are inclined to weep, the sort with a knurled handle that operates it. The lever types seem more reliable.

    A ball valve then.


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