Dimension of Fermzilla Top Opening

[agentbud]

Can someone out there who owns a Fermzilla tell me the exact inside dimension of the top opening? I have a Speidel fermenter and its top opening has an inside diameter of 4 7/8". I was curious if the tri-clamp pressure lid that is designed for the fermzilla would also fit the Speidel opening. I don't want it for pressure fermenting but rather just like all the extra ports it provides. I would still use the Speidel's locking ring so there is no issue with the threads matching as long as the lid fits snugly into the opening.

 

[micraftbeer]

Opening on fermentor is 4-5/8". The lid has a little lip flange that's 5".

So I don't know if that will just barely work, or just barely not work.

 

[Yesfan]

More or less the same for me. I'm assuming all the Fermzilla fermenters are the same. I have the All Rounder and I measured just shy of 4 3/4".

 

[agentbud]

I went ahead and ordered one of the fermzilla lids so we'll know soon enough

 

[agentbud]

Good news. The fermzilla tri-clamp lid arrived today. The diameter of the inner part of the lid that fits down into the opening is just a tad too small, maybe by 1/8”, so it does not create a seal on the inner part of the opening. However, the outer flange of the lid matches the outer diameter of the Speidel opening and I found that if I add the original top o-ring that came with the Speidel to the fermzilla lid flange, it allows it to seal down onto the top of the lip, creating an air-tight seal. I added a couple pounds of pressure and so far it is holding fine. I can now add my hop bong onto my Speidels. Picture attached.

 

[fluketamer]

Good news. The fermzilla tri-clamp lid arrived today. The diameter of the inner part of the lid that fits down into the opening is just a tad too small, maybe by 1/8”, so it does not create a seal on the inner part of the opening. However, the outer flange of the lid matches the outer diameter of the Speidel opening and I found that if I add the original top o-ring that came with the Speidel to the fermzilla lid flange, it allows it to seal down onto the top of the lip, creating an air-tight seal. I added a couple pounds of pressure and so far it is holding fine. I can now add my hop bong onto my Speidels. Picture attached.

wow that is really cool . thanks for taking the chance on this for the rest of us . awesome way to interchange parts.

brew on

 

[Yesfan]

Like said in your other thread, very nice. It looks very oem. Glad that worked out.