plates not matching

[onewhofarts]

Hello forum

I recently bought some 4" plates.
there are three units that should stand one on each other
when I place the plate on the gasket that sits on the helmet
I can't close the clamp. there is a gap.
what am I missing ?

[still_stirrin]

...
what am I missing ?

Is this some kind of a riddle?

I’d say, “ you’re missing a whole lot of cash!”

[Saltbush Bill]

Photo not working?

[CopperFiend]

There's no recess for the plate to sit in. You need to carve a little recess in the ferrule end to allow the plate to be below the level of the top. A lathe would be the ideal tool for this.

[TXChiliMayo]

I’ll take a stab...
Looks like the same pic was posted twice from my browser view.
When I switched to ptfe gaskets on my plates column, the clamps wouldn’t close enough to secure them. I used pliers to squeeze the clamp ends enough to attach the nut. The ptfe gaskets are thicker and less pliable so much more force was necessary. At some point I will upgrade the clamps to a higher quality that will hopefully be easier.
As a side note, I put my plates on top of the gasket instead of below, no idea if that’s correct, but I don’t have leaks. Ideally I would trim the inside lip of the gasket so the plate rests within the gasket instead of on top or below. But it’s an AliExpress special so I’m not too upset with the minor engineering flaws. They’re manageable considering the price.

[RC Al]

One thing to try is giving the clamp a tap with a rubber malet if its just short of engaging at the start

You could carve the gaskets out to just before the lip, the plate needs to -just- sit inside the newly sized gasket, when you tighten the clamp, the seal will contact the plate from the sides as it compresses

Most likey it's designed for those naughty silicon gaskets that would deform to that i think

Posting same time

[Windy City]

I cut my teflon gaskets interior ring just short of the protrusion on the gasket.
The plate now sits inside of the gasket I.D. and everything clamps down nice with no leaks.

[CopperFiend]

I cut my teflon gaskets interior ring just short of the protrusion on the gasket.
The plate now sits inside of the gasket I.D. and everything clamps down nice with no leaks.

This is a good idea, to avoid metalwork. It may reduce the effectiveness of the gasket but if done well, should be the easiest fix for your problem.

[onewhofarts]

your help is much appreciated.
problem understood.
that's the first stage of solving a problem

[LWTCS]

I cut my teflon gaskets interior ring just short of the protrusion on the gasket.
The plate now sits inside of the gasket I.D. and everything clamps down nice with no leaks.

This is a good idea, to avoid metalwork. It may reduce the effectiveness of the gasket but if done well, should be the easiest fix for your problem.

It's not going to affect the effectiveness of the gasket.

The above mentioned workaround is exactly the basis for the originators of this type of modular components.
OP should have received gaskets that are specifically intended to allow the plate and gasket to rest on the same plane.

[zapata]

That's a polite way to say that the biggest problem with knock offs is that they don't copy everything.

[LWTCS]

That's a polite way to say that the biggest problem with knock offs is that they don't copy everything.

Haha.
In the early days there was a prototype built for evaluation.
A couple of segments welded and polished as we debated the merits of each of the plate fastening systems we were discussing.
Shortly there after, there it was on Alibaba.
For sale, with no guts. Only replicated based on the exterior aesthetic based on a picture that somehow got circulated.

No knowledge what so ever about how it may (or may not) function. No R&D. No nothing.

Betcha money there are some unaddressed throughput issues on those bubble caps too.

[DAD300]

I cut my teflon gaskets interior ring just short of the protrusion on the gasket.
The plate now sits inside of the gasket I.D. and everything clamps down nice with no leaks.

This makes a proper gasket or you can buy them from some of the modular parts sellers already made this way.

[shadylane]

Hello forum

I recently bought some 4" plates.
there are three units that should stand one on each other
when I place the plate on the gasket that sits on the helmet
I can't close the clamp. there is a gap.
what am I missing ?

The parts don't match
Before you start cutting and grinding
A double hinged tri-clamp might cure the problem
https://www.glaciertanks.com/tri-clamp- ... hinge.html

[jedneck]

I’ve also wrapped ptfe tape around edge of plate n clamped it up. Sealed great

[v-child]

McMasters and other companies sell PTFE "O-rings that would solve this little issue in a heartbeat.

[SassyFrass]

Homemade cardboard gaskets wrapped in ptfe works too. Plus it cheap and easy.