Mueller Tank plastic cap

[Niall310]

Has anyone had any problems with the plastic caps on the outlet cracking and breaking?

This is the second one in a few years and we've taped them but that only lasts so long.

Any solutions or cheap places to buy caps?
Thanks in advance View attachment 757350

 

[acorn]

....tanker drivers are overzealous when tightening.....

 

[TheRanger]

They're about £25 online in the USA (only website I can find selling them).

Is your local dealer really that much more expensive?

 

[Peter]

Use fly spray in the milk house? Can be notorious for degrading some types of plastic.

 

[Niall310]

They're about £25 online in the USA (only website I can find selling them).

Is your local dealer really that much more expensive?

Right, was that including delivery?

yeh, as far as i remember the last one we got was up wards of £60+. It definitely wasn't near 25!

 

[farmerbill]

Are you over tightening it?

 

[Niall310]

Are you over tightening it?

No, we've no need to touch it. Only the milkman needs it really, so it must be him.

 

[buffalo_soldier]

What tank wash chemical are you using.

I've seen it happen where the chemical somehow degrades the plastic causing it to go brittle and splinter.

Edit: check chemical concentration also.

 

[Niall310]

What tank wash chemical are you using.

I've seen it happen where the chemical somehow degrades the plastic causing it to go brittle and splinter.

Edit: check chemical concentration also.

Acidbrite And TC86.

I'm not sure about the concentration but that's a fair point, I never actually thought about the chemical degrading it!

 

[powerfarmer]

I made a stainless steel cap to replace a broken plastic one but I was lucky that the outer thread was an easily available dairy thread (SMS). So I welded a bit of blanked off pipe to a new SMS nut. Job done.

Your inner thread is a standard dairy fitting (RJT) but the outer thread looks a bit unusual.

 

[farmerste]

Looks very similar to my delaval outlet,it may be cheaper to buy one from another manufacturer if it will fit

 

[powerfarmer]

Here's the one I made.

 

[Niall310]

Here's the one I made.

That looks like a good option! I can't weld stainless myself but there's a place nearby.
I glued it a bit so that should hold until I get a replacement sorted.
Cheers for that!!

 

[Niall310]

Looks very similar to my delaval outlet,it may be cheaper to buy one from another manufacturer if it will fit

Ill get it measured up and price but I like the idea of a stainless one and fix it for good.
Thanks for the reply, much appreciated!!