Fitting a dial thermometer to boiler

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DerbyshireNick

Re: Fitting a dial thermometer to boiler

Post by DerbyshireNick » Tue Feb 07, 2012 1:26 pm

Thanks for this post, I needed exactly something like this for my HLT/Boiler combo! ordered!

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alix101
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Re: Fitting a dial thermometer to boiler

Post by alix101 » Sun Feb 12, 2012 11:22 pm

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
"Everybody should belive in something : and I belive I'll have another drink".

andyCo

Re: Fitting a dial thermometer to boiler

Post by andyCo » Mon Feb 13, 2012 12:20 am

alix101 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
Mine turned up also ..not the quickest on the delivery side tbh
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

johndavies

Re: Fitting a dial thermometer to boiler

Post by johndavies » Fri Feb 17, 2012 10:58 pm

are these easy to fit??

BrewHead

Re: Fitting a dial thermometer to boiler

Post by BrewHead » Sat Feb 18, 2012 1:04 am

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.

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johnmac
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Re: Fitting a dial thermometer to boiler

Post by johnmac » Tue Feb 21, 2012 5:29 pm

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.

Spud395

Re: Fitting a dial thermometer to boiler

Post by Spud395 » Tue Feb 21, 2012 6:53 pm

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.
What type of a boiler do you use John, Stainless or plastic?
I suppose I'm asking what's the wall thickness?

bumblebee
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Re: Fitting a dial thermometer to boiler

Post by bumblebee » Tue Feb 21, 2012 7:10 pm

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

jimp2003

Re: Fitting a dial thermometer to boiler

Post by jimp2003 » Tue Feb 21, 2012 8:20 pm

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 :oops: )

Any chance of a link or pic bumblebee?

Cheers

Jim

bumblebee
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Re: Fitting a dial thermometer to boiler

Post by bumblebee » Tue Feb 21, 2012 8:46 pm

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

jimp2003

Re: Fitting a dial thermometer to boiler

Post by jimp2003 » Tue Feb 21, 2012 9:30 pm

Got it. Thanks Bumblebee.

bumblebee
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Re: Fitting a dial thermometer to boiler

Post by bumblebee » Tue Feb 21, 2012 9:44 pm

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

redbenson111

Re: Fitting a dial thermometer to boiler

Post by redbenson111 » Wed Feb 22, 2012 7:31 pm


anto01

Re: Fitting a dial thermometer to boiler

Post by anto01 » Wed Feb 22, 2012 8:42 pm

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.
would using a circlip with the dowty work :unsure:

andyCo

Re: Fitting a dial thermometer to boiler

Post by andyCo » Wed Feb 22, 2012 10:43 pm

redbenson111 wrote:You could always use one of these:
http://www.ebay.co.uk/itm/280823645801? ... 1423.l2649
Not sure one of these would work tbh .
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

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