Fitting a dial thermometer to boiler
Re: Fitting a dial thermometer to boiler
Thanks for this post, I needed exactly something like this for my HLT/Boiler combo! ordered!
- alix101
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Re: Fitting a dial thermometer to boiler
I recived mine last week they are pretty good but I think I'm going to need another fitting to go through the pots
there just isn't enough on the edge to make a good seal, im going to message the seller
there just isn't enough on the edge to make a good seal, im going to message the seller
"Everybody should belive in something : and I belive I'll have another drink".
Re: Fitting a dial thermometer to boiler
Mine turned up also ..not the quickest on the delivery side tbhalix101 wrote:I recived mine last week they are pretty good but I think I'm going to need another fitting to go through the pots
there just isn't enough on the edge to make a good seal, im going to message the seller
A couple of these might fit with some poly washers
http://www.toolstation.com/shop/Brass+F ... nut/p90735
I found a fitting from and old tank connector that fits but it will need
http://www.flickr.com/photos/75944405@N06/6865870013/
Andy
Re: Fitting a dial thermometer to boiler
Hello,
They are really easy to fit. You drill a 20mm hole, use a 1/2" self centering dowty washer on the outside, and a hex nut as recommended above on the inside. The dowty washes are available on eBay £2ish for 10, and are about 16mm internal diameter. They fit in the gap between the back nut and the thread. When compressed the outer metal washer stops the inner rubber washer from deforming and slipping off the back nut.
Hope it helps - I've fitted 2 like this and neither has leaked yet.
They are really easy to fit. You drill a 20mm hole, use a 1/2" self centering dowty washer on the outside, and a hex nut as recommended above on the inside. The dowty washes are available on eBay £2ish for 10, and are about 16mm internal diameter. They fit in the gap between the back nut and the thread. When compressed the outer metal washer stops the inner rubber washer from deforming and slipping off the back nut.
Hope it helps - I've fitted 2 like this and neither has leaked yet.
Re: Fitting a dial thermometer to boiler
Having tryed the Dowty washer method, I have to say, it's not satisfactory: It doesn't leak, but the there is nothing retaining the thermometer pocket except rubber. A small amout of force will cause the joint to pop open, which is going to be dangerous with boiling liquids.
Re: Fitting a dial thermometer to boiler
What type of a boiler do you use John, Stainless or plastic?johnmac wrote:Having tryed the Dowty washer method, I have to say, it's not satisfactory: It doesn't leak, but the there is nothing retaining the thermometer pocket except rubber. A small amout of force will cause the joint to pop open, which is going to be dangerous with boiling liquids.
I suppose I'm asking what's the wall thickness?
Re: Fitting a dial thermometer to boiler
I used two brass reducers, on the inside of the pot a 5/8" to 1/2" reducer with the thread poking through the pot,I then fitted a stainless steel dowty and then a 3/4" to 1/2" reducer, this leaves just enough 1/2" female thread to screw in the thermometer pocket
Re: Fitting a dial thermometer to boiler
bumblebee wrote:I used two brass reducers, on the inside of the pot a 5/8" to 1/2" reducer with the thread poking through the pot,I then fitted a stainless steel dowty and then a 3/4" to 1/2" reducer, this leaves just enough 1/2" female thread to screw in the thermometer pocket
When you say a reducer what do you mean exactly? (pipe fittings are not my strong point

Any chance of a link or pic bumblebee?
Cheers
Jim
Re: Fitting a dial thermometer to boiler
Errrrr trying to do a link without success , if you put ' brass reducer' into yr search engine It will show a pic , sorry not very helpful I know,if you imagine a hollow bolt with both an internal and xternal thread
Re: Fitting a dial thermometer to boiler
Sorry my error ...... Inside the pot was a 1/2" to 3/8" reducer and 3/4" to 1/2" on the outside, I'm trying to remember as it's been fitted some time, basically yr screwing the 1/2" threads together
Re: Fitting a dial thermometer to boiler
You could always use one of these:
http://www.ebay.co.uk/itm/280823645801? ... 1423.l2649
http://www.ebay.co.uk/itm/280823645801? ... 1423.l2649
Re: Fitting a dial thermometer to boiler
would using a circlip with the dowty workjohnmac wrote:Having tryed the Dowty washer method, I have to say, it's not satisfactory: It doesn't leak, but the there is nothing retaining the thermometer pocket except rubber. A small amout of force will cause the joint to pop open, which is going to be dangerous with boiling liquids.

Re: Fitting a dial thermometer to boiler
Not sure one of these would work tbh .redbenson111 wrote:You could always use one of these:
http://www.ebay.co.uk/itm/280823645801? ... 1423.l2649
I spent 10 mins in my local plumbers today and think I got it cracked.
When I get a spare 10 mins I'll upload a picky of the bits.
Basically its a 1/2 brass sleeve plus a 1/2 threaded connector.
http://s1132.photobucket.com/albums/m564/andyco2/
Andy