Edited by chuck_d, 27 August 2009 - 02:57 PM.
Type 303 Stainless Steel QDs
#1
Posted 27 August 2009 - 02:54 PM
#2
Posted 27 August 2009 - 03:14 PM
#3
Posted 27 August 2009 - 03:43 PM
#4
Posted 27 August 2009 - 04:02 PM
Same as mine, tip of the hat to George.......Doesn't answer your question, but if you're not averse to using brass, here's another much less expensive option. I use these QD's on my system and have been really happy with them, they work great.https://www.mcmaster...6739k59/=3cisvkhttps://www.mcmaster...6739k64/=3cit8e
#5
Posted 27 August 2009 - 04:05 PM
#6
Posted 27 August 2009 - 04:15 PM
I'm fairly certain most kegs are 304 or 303.......... So there you go.I believe that I asked John Palmer that question a while back and he said that 303 was fine.
#7
Posted 27 August 2009 - 04:50 PM
#8
Posted 27 August 2009 - 05:53 PM
I have these on everything and I am really starting to get sick of them. Thgey are nice because you do not burn your fingers everytime you touch them, however the o-rings are very delicate, and I replace 2-3 per brewday as needed. You either have to keep them keg lubed up, or they stretch when connecting/discon I have been thinking about switching all out for brass or SSI even pointed him toward the polysulfone QDs when I saw th SS were out of stock a few days ago.
#9
Posted 27 August 2009 - 06:29 PM
I have those too and got pretty sick of them (the polys). Never had a problem with the rings myself, but I always seemed to have problems with the QDs, and was always afraid I'd drop them and have them crack or some shiite. So I switched to brass, pickled them and am quite happy. At this point, I don't really see the need for me to spring for SS. For me it's more "bling" (kinda) than necessary. I use the same cleaning regimen with the SS and brass anyway. But, to each their own...I have these on everything and I am really starting to get sick of them. Thgey are nice because you do not burn your fingers everytime you touch them, however the o-rings are very delicate, and I replace 2-3 per brewday as needed. You either have to keep them keg lubed up, or they stretch when connecting/discon I have been thinking about switching all out for brass or SS
Edited by RommelMagic, 27 August 2009 - 06:30 PM.
#10
Posted 27 August 2009 - 07:30 PM
303 is absolutely fine for beer, and any stainless is overkill as far as corrosion protection. 303 is much easier to cut than than 304, and MUCH, MUCH, MUCH easier to cut than 316, so if the QDs have any post-machining on them, the 303 is likely to be cheaper. 304 and 302 are pretty much identical. Also, higher numbers don't always mean better corrosion resistance; 416 and 440 will corrode slightly faster than 302, 303, 304 or 316.Mcmaster has what appears to be the same thing, but they list the alloy as type 303 SS, but I'm really only familiar with type 304 and the less corrosive 316 alloys. Just working on the number I assume that 303 is less resistant to corrosion than 304 since 304 is less resistant than 316, but I figured I'd ask the folks here since I know there are people that know their metals far better than I.
#11
Posted 27 August 2009 - 07:39 PM
#12
Posted 27 August 2009 - 08:36 PM
So a follow up question. Do the numbers basically refer to hardness then? Higher numbers = harder = more difficult to cut? I know there is another "series" of SS that is used for most household stuff called 18-8 (I'm currently in this section in vol 3 of the MBAA practical handbooks, so maybe it's answered later in the section). Are the 4xx types another "series" apart from the 3xx types? I'm just getting overly greedy with my curiosity now.303 is absolutely fine for beer, and any stainless is overkill as far as corrosion protection. 303 is much easier to cut than than 304, and MUCH, MUCH, MUCH easier to cut than 316, so if the QDs have any post-machining on them, the 303 is likely to be cheaper. 304 and 302 are pretty much identical. Also, higher numbers don't always mean better corrosion resistance; 416 and 440 will corrode slightly faster than 302, 303, 304 or 316.
#13
Posted 27 August 2009 - 09:04 PM
Yeah, rub it in Swag, rub it in. In an ideal world my setup would be all stainless too, and all tri-clovers. Based on the feedback I've seen, you have MANY happy customers, and I assure you..... I covet your clovers..... is that weird?But, price is an issue and the brass QDs are the best bang for the buck for me right now.By the way, my cleaning/sanitizing regimen (PBW and star san) would be no different with all SS vs brass.For some reason I like the Tri'-clovers never wear out and never leak
#14
Posted 28 August 2009 - 05:58 AM
#15
Posted 28 August 2009 - 09:27 AM
#16
Posted 28 August 2009 - 10:39 AM
#17
Posted 28 August 2009 - 01:05 PM
Yep and its just the fact's. Like my grandpa said never be afraid to open a book or in this case punch a few keys. At my age I don't trust my memory. God BlessSwagmancut n paste from the Wiki Swag ?https://en.wikipedia...Stainless_steel
#18
Posted 28 August 2009 - 05:23 PM
#19
Posted 29 August 2009 - 11:46 AM
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users