Cable Gland?

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Cable Gland?

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  • #418653
    Vic
    Participant
      @vic

      I want to install a temperature probe into a water inlet pipe. The probe is 4mm diameter but the wire itself is a figure 8 cable about 1.5mm x .75mm. Are there any cable glands that can deal with this? Water pressure is low and the gland can go into an alloy manifold. 1/4” or 3/8” BSP would be good for the gland body.

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      #26713
      Vic
      Participant
        @vic
        #418654
        Speedy Builder5
        Participant
          @speedybuilder5

          Does the probe need to be in the water, or could it be in a pocket that is in the water ? Alternatively, can the gland grip the 4mm diameter probe instead of the cable ?

          BobH

          #418667
          Frances IoM
          Participant
            @francesiom58905

            why not make a top hat out of copper (or ali) that can be fitted into a standard T junction and reach down into the water with the temp sensor tightly fitted into drilled holes into top of the T possibly packed with thermal paste if sloppy fitting – the top hat is so will seal when fitted into the T junction

            Edited By Frances IoM on 13/07/2019 16:58:26

            #418673
            Vic
            Participant
              @vic

              The probe could just be inserted into the tank but I thought things would look neater If the probe was hidden in the pipe. They sell 12mm x 1.5mm cable glands but the minimum cable size is 3.5mm. I do have some silicon cord though some I’m wondering if I can make a suitable packing piece? Being able to remove the probe periodically for cleaning purposes is also a requirement.

              #418692
              Bazyle
              Participant
                @bazyle

                Work out where on the wire you need the gland to be then fit a small piece of tube there using a suitable eg silicone sealant filler. if you think the flexing wire might break the seal make the tube longer, seal one end to the wire, fill up with a non setting or softer glue, then seal the other end.

                #418698
                V8Eng
                Participant
                  @v8eng

                  If I read this correctly it appears that you are proposing to immerse the whole assembly with just the cable exiting via the gland (sorry if I misread that).

                  If that is correct: have you checked that probe to cable interface is suitably sealed for that purpose, also do you know if the cable itself is suitable for continuous immersion?

                  Edited By V8Eng on 13/07/2019 19:08:49

                  #418714
                  Boiler Bri
                  Participant
                    @boilerbri

                    Hi. Atex rated glands will do the job. They have o rings on the gland threads and seal to be safe on the cable. You have to machine cut the holes in whatever your fitting them into so its a tolleranced fit

                    I have loads. Pm me if you want a few sending. I would need to know what size cable you are using ?

                    Bri

                    #418758
                    not done it yet
                    Participant
                      @notdoneityet

                      If it is the common ‘K type’ transducer get another that can be sealed, is my suggestion.

                      Edited By not done it yet on 14/07/2019 07:54:38

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