shardy
starting to spend too much on rocks
Member since October 2019
Posts: 110
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Post by shardy on Mar 16, 2020 16:23:22 GMT -5
I tried to source some hdpe pipe to build barrels but it didn't work out, fittings are expensive, and pipe hard to find. So we went a different route. 6" sdr 35 pipe, and cap, both lined with silicon rubber hose. I split a hose to cut out several end cap liners. I left the hose long on one end on purpose. 6"x4" reducer. I ground out the shoulder on the 4 inch side and inserted a 3 inch long piece of 4" sdr 35. So that it protruded an inch or so into the 6" hollow. I coated the inside of the reducer, and the outside of the 6" pipe on the extra hose side with epoxy and shoved the pipe into the reducer to force the hose into the tapered part of the reducer. Then back filled the space between the 4" pipe and the 5.5" silicon hose. This locked the hose in and glued the fitting to the pipe. Once that cured I coated the inside of the cap and the outside of the other end of the pipe with epoxy, the excess filled the end a bit and sealed everything up. Finished. I cut a bit from the small end of the reducer just to match the inside depth of a 4" fernco cap. This is the 5th one I've made. Finer grits get smaller barrels.
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,334
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Post by quartz on Mar 16, 2020 22:42:30 GMT -5
I like your idea of using the hose. Where do you get it that big?
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shardy
starting to spend too much on rocks
Member since October 2019
Posts: 110
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Post by shardy on Mar 17, 2020 0:13:06 GMT -5
It's a coolant hose used on a cat 3516 truck engine. I'm sure it's cost prohibitive unless you happen to be doing engine swaps on haul trucks. It fits perfectly and I don't suppose it'll wear through anytime soon. I'd imagine a hose supply store could find something more sensible. I like your idea of using the hose. Where do you get it that big?
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Mar 17, 2020 6:32:38 GMT -5
Silicone rubber should be as good as it gets as far as wear resistance. Amazing it fits so nice. These are some photos of a heavily worn sch 40 PVC barrel sawn in half if it helps you locate high wear locations. #1 wear was the center of the end cap #2 was the shoulders of the sch 40 reducer bushing if gussets were plugged with silicon caulk. #3 was the 4 inch pipe It's a shame Michelin won't make us a tire rubber jar that Fernco caps fit. I am still testing the wear rate on HDPE by tumbling with harsh SiC grit in them. Yes hdpe fittings are expensive.
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shardy
starting to spend too much on rocks
Member since October 2019
Posts: 110
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Post by shardy on Mar 17, 2020 9:30:15 GMT -5
I've consulted your posts heavily while deciding on the best route. I wandered and dug around old parts bins and shelves with a tape measure in hand for hours before I found the perfect fit. These have worked great so far. Quiet is my favorite part. Silicone rubber should be as good as it gets as far as wear resistance. Amazing it fits so nice. These are some photos of a heavily worn sch 40 PVC barrel sawn in half if it helps you locate high wear locations. #1 wear was the center of the end cap #2 was the shoulders of the sch 40 reducer bushing if gussets were plugged with silicon caulk. #3 was the 4 inch pipe It's a shame Michelin won't make us a tire rubber jar that Fernco caps fit. I am still testing the wear rate on HDPE by tumbling with harsh SiC grit in them. Yes hdpe fittings are expensive.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Mar 18, 2020 2:22:11 GMT -5
Please continue to post your barrels. The lamination trick is a great idea. You may find the ultimate combo if not already. Fernco has some interesting couplings and caps. Tried to come up with a combo setup using their fittings. Perhaps their rubber can be vulcanized... A long 6 or 8 inch cap with a 4 or 6 inch reducer on the other side would be an instant barrel. Their prices are low considering how much rubber they sell in one of their heavier units. Their 6 inch caps are thick chunks of rubber. Maybe they would contract with some one to make a jar... Probably requires a million dollar injection mold. 8" X 8" Fernco coupling is not to expensive. Shame it is not capped on one end for at least a half barrel. www.ebay.com/itm/NEW-LOT-OF-5-FERNCO-P1056-88-8-PVC-RUBBER-FLEXIBLE-COUPLINGS-USA-MADE-SALE/310644833359?epid=1813308443&hash=item4853dffc4f:g:uvIAAOxy-NVSEBM7
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shardy
starting to spend too much on rocks
Member since October 2019
Posts: 110
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Post by shardy on Mar 18, 2020 4:23:06 GMT -5
It's pvc right? I wonder if standard pvc primer and cement would weld it? Please continue to post your barrels. The lamination trick is a great idea. You may find the ultimate combo if not already. Fernco has some interesting couplings and caps. Tried to come up with a combo setup using their fittings. Perhaps their rubber can be vulcanized... A long 6 or 8 inch cap with a 4 or 6 inch reducer on the other side would be an instant barrel. Their prices are low considering how much rubber they sell in one of their heavier units. Their 6 inch caps are thick chunks of rubber. Maybe they would contract with some one to make a jar... Probably requires a million dollar injection mold. 8" X 8" Fernco coupling is not to expensive. Shame it is not capped on one end for at least a half barrel. www.ebay.com/itm/NEW-LOT-OF-5-FERNCO-P1056-88-8-PVC-RUBBER-FLEXIBLE-COUPLINGS-USA-MADE-SALE/310644833359?epid=1813308443&hash=item4853dffc4f:g:uvIAAOxy-NVSEBM7
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