So i never considered it but it just occurred to me that the ability to weld hdpe means you could actually make a plastic conical that seals up airtight and doesn’t require constant fiddling with silicone or gaskets or weatherstripping etc.
Im assuming that your bulkheads for fittings seal tight, as well as any cooling coil penetrations, etc.
But im thinking that the lids are usually big enough that you could fit a 3 or 4” bulkhead, and another one or two smaller bulkheads for prv, blowoff, etc. Use the large one for dry hops and cip ball.
The idea being that you get your lid bulkheads installed, then seat the lid in place and then plastic weld it. Theres not much of a gap between the lid and the body, you should be able to seal that up with the plastic welding rod id assume. Lid is fixed and cant be removed, but youve got no more worries about o2 ingress. (Other than thru the plastic itself eventually)
Anybody see any issues with the idea? Being limited to a 3-4 inch opening sucks, but id think the oxygen issue is worse. You could always cut the weld and get the lid off again if really necessary.
Has no one tried this before?
Im assuming that your bulkheads for fittings seal tight, as well as any cooling coil penetrations, etc.
But im thinking that the lids are usually big enough that you could fit a 3 or 4” bulkhead, and another one or two smaller bulkheads for prv, blowoff, etc. Use the large one for dry hops and cip ball.
The idea being that you get your lid bulkheads installed, then seat the lid in place and then plastic weld it. Theres not much of a gap between the lid and the body, you should be able to seal that up with the plastic welding rod id assume. Lid is fixed and cant be removed, but youve got no more worries about o2 ingress. (Other than thru the plastic itself eventually)
Anybody see any issues with the idea? Being limited to a 3-4 inch opening sucks, but id think the oxygen issue is worse. You could always cut the weld and get the lid off again if really necessary.
Has no one tried this before?
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