Spot on @Petefin but I’ve used aluminium rather than stainless steel as I only have a hand drill, hacksaw and files at my disposal. It’s not finished yet but this is what I’ve done...Hi Buffers Brewery,
Would be most interested in seeing your new cap. You have certainly got me thinking, a large diameter flat O ring and a flat stainless steel plate with my valves and guage fitted. A steel two piece steel band bolted to the bottom of the threads on the barrel with six or eight vertical 6mm holes tapped in them. Screws through the plate into the collar. The screws could be tightened to equally compress the gasket. Now that would work.
I am an engineer in a food factory with lots of stainless steel and a lathe big enough to hold something as big as a cap.
Sounds like my next project?
Let's see the photos Buffers Brewery and thanks for the inspiration
Cheers, Pete
3/8 inch aluminium plate slips over barrel threads. M6 coach bolts loose fit. Going to thread ring M8 and secure bolts so they don’t fall out when you lift the ring off
Cut the top off a cap so that when it’s fitted the barrel lip stands proud of the top face.
Fitted a jubilee clip to hold the threaded bit in place.
The top is a piece of aluminium fitted on the underside with a neoprene rubber gasket.
Finally held in place and clamped down with wing nuts.
Just got to fit the HB valve fitting and there you have it. The Buffers Brewery Barrel Bung!