Threaded fitting issues (PT100 probe)

Discussion in 'General Home Brew Equipment Discussion' started by YeastFace, Oct 9, 2019.

Help Support The Homebrew Forum UK by donating:

  1. Oct 9, 2019 #1

    YeastFace

    YeastFace

    YeastFace

    Landlord.

    Joined:
    Jun 19, 2015
    Messages:
    707
    Likes Received:
    233
    Location:
    Surrey
    Evening all,

    I recently bought two PT100s from eBay.

    I'd made an offer on three a couple of weeks back, the counter offer was pretty much the asking price so I didn't progress.

    I then received an email from eBay advising an item I'd been looking at had dropped in price. Without checking (fatal error) I bought the remaining two.

    When they arrived it was clear the thread is not 1/2" as per my other one (also from eBay) and the ones I'd made offers on and looked at.

    The packaging and eBay listing state that the thread is M16 1.5.

    I'm having issues figuring out what I can do here.

    I bought a 1/2" to 1/4" reducer (having read that 1/4" was a common probe size) but this is too small.

    Ideally I want to site this within a 1/2" tee so am happy to get another reducing bush, but can anyone help me convert M16 to imperial?

    Would 3/8" be any good? I have plenty of loctite.
     
  2. Oct 9, 2019 #2

    Jakeyboi

    Jakeyboi

    Jakeyboi

    Regular.

    Joined:
    Sep 17, 2016
    Messages:
    410
    Likes Received:
    193
    Location:
    Hastings
    M16 is 16mm so I guess you want a 16mm to 1/2” bush or adaptor
     
  3. Oct 10, 2019 #3

    YeastFace

    YeastFace

    YeastFace

    Landlord.

    Joined:
    Jun 19, 2015
    Messages:
    707
    Likes Received:
    233
    Location:
    Surrey
    Thanks, struggling to find any reducers of that size so may have to put this one down to experience and get some new 1/2" probes.
     
  4. Oct 10, 2019 #4

    foxy

    foxy

    foxy

    Landlord.

    Joined:
    Nov 13, 2013
    Messages:
    659
    Likes Received:
    243
    Look online for an adapter, I am thinking the 1/2 inch is BSP, tapping drill for 3/8 BSP is 15.25 mm so thread tape and you may be able to fluke it.
     
  5. Oct 10, 2019 #5

    kelper

    kelper

    kelper

    Landlord.

    Joined:
    Mar 4, 2019
    Messages:
    867
    Likes Received:
    263
    Location:
    Highlands
    Last edited: Oct 10, 2019
  6. Oct 10, 2019 #6

    BeerCat

    BeerCat

    BeerCat

    Landlord.

    Joined:
    May 6, 2015
    Messages:
    4,655
    Likes Received:
    1,331
    Location:
    East and West Grimblestbottom under the rye
    I find the cheap pt100 probes have issues with the leads after a while so as long as they are compatible it's good to have a spare. I am on my third.
     

Share This Page