Fitting a dial to a boiler and HLT

[BenB]

The dials I've got came with a washer, a nut and a silicon o-ring. Is there a preferred order for these to go in? I was thinking the o-ring, washer and nut all on the inside of the boiler. What has anyone else done? Is there a preferred method?

[banksy]

I could never make them seal up with just the parts that came with the kit.... I went out and got a 1/2" BSP back nut, with (rubber?) washer. (your thread may be a diffrent size so just get the corresponding back nut for your thread)

This went on the outside of the boiler, with the supplied nut on the inside.... Dial thread wrapped in ptfe on the outside of the boiler... then tighten the two nuts up against themselves...

Not sure if this picture shows it very well.

[Fil]

a good wrap of ptfe tape and an ebay sourced silicone baking sheet for diy soft washers have sealed 99% of the jobs ive attempted to seal up. the odd 1% were solved with a thin smear of the ferenox lsx silicone thread sealer.

[Evanvine]

Deffo seal on the outside with the washer on the inside, if you don't the wort/liquor will seep through the threads.

[mrlard]

that looks like one of our

there are a few ways of sealing up.

Personally we go for a snug hole - 20mm in this case. The dial thread has a groove for the seal to sit in and it should go in the following order

dial / seal / pot / washer / back nut.

you put the dial in place and hold there ( don't twist it to tighten up) pop the washer and nut on then still holding the dial in place tighten up the nut. it seals every time and no need for PTFE

Or if you want to do things around the wrong way for some reason you you can fit

dial / washer / pot /ptfe thread / seal / back nut.

Doing it this way you need to hold the nut and seal in place and tighten/ twist the dial

[chastuck]

that looks like one of our

there are a few ways of sealing up.

Personally we go for a snug hole - 20mm in this case. The dial thread has a groove for the seal to sit in and it should go in the following order

dial / seal / pot / washer / back nut.

you put the dial in place and hold there ( don't twist it to tighten up) pop the washer and nut on then still holding the dial in place tighten up the nut. it seals every time and no need for PTFE

Or if you want to do things around the wrong way for some reason you you can fit

dial / washer / pot /ptfe thread / seal / back nut.

Doing it this way you need to hold the nut and seal in place and tighten/ twist the dial

Mrlard's dials are very fine instruments, but I have to say I have never been happy with the seal as suggested. This is the link to show how I did it: http://www.thehomebrewforum.co.uk/viewt ... 13&t=48416. No leaks whatsoever and a much firmer fitting with my weldless assembly. The 1/4" BSP locknut on the dial thread is sealed with JB Weld to make a bulkhead type fitting before fitting the rest of the components.

[banksy]

that looks like one of our

there are a few ways of sealing up.

Personally we go for a snug hole - 20mm in this case. The dial thread has a groove for the seal to sit in and it should go in the following order

dial / seal / pot / washer / back nut.

you put the dial in place and hold there ( don't twist it to tighten up) pop the washer and nut on then still holding the dial in place tighten up the nut. it seals every time and no need for PTFE

Or if you want to do things around the wrong way for some reason you you can fit

dial / washer / pot /ptfe thread / seal / back nut.

Doing it this way you need to hold the nut and seal in place and tighten/ twist the dial

Yes its one of yours....

Configured as such: dial / pfte thread / "my back nut & rubber washer"/ pot / washer / nut - the back nut & rubber washer were the additions to the supplied parts as I just could not get a seal - perhaps that's because I used a 1/2" Q-Max punch(which I believe is 21mm) ?

Perfect seal now so I am more than happy.... although I may get some silicone baking sheet as suggested by Fil

Cheers!