Hi,
I am looking at upgrading my brewing system, and when ahead and purchased some SS ball valves from china via ebay:
1/2" ball valve 3 way:
http://www.ebay.co.uk/itm/231012806823?_trksid=p2059210.m2749.l2649&ssPageName=STRK:MEBIDX:IT
1/2" ball valve:
http://www.ebay.co.uk/itm/321438624050?_trksid=p2060353.m2749.l2649&ssPageName=STRK:MEBIDX:IT
However, when they arrived, they do smell strongly of machine oil. I have washed them with water and a bit of dish washing liquid. They don't smell as strong, but it still remains.
I am now concerned that these may not be suitable for home brewing as they may not be food safe?.
I have searched on the internet, and a lot of people are saying that they dismantle the valves to clean them properly every couple of months, but these ones a a single piece and I don't think I can get to the ball valve to clean them completely.
Also each of the 1/2" ball valves (not the 3 ways), seem to have a deposit of some sort at the end of the thread around the edging of the valve face (I have attached some photos), it almost looks like rust, I have tried to scrape it off but it won't come off. I am worried that I should not have my precious wort running through them.
Would any of this be an issue for my brewing?
Thanks,
Mat
I am looking at upgrading my brewing system, and when ahead and purchased some SS ball valves from china via ebay:
1/2" ball valve 3 way:
http://www.ebay.co.uk/itm/231012806823?_trksid=p2059210.m2749.l2649&ssPageName=STRK:MEBIDX:IT
1/2" ball valve:
http://www.ebay.co.uk/itm/321438624050?_trksid=p2060353.m2749.l2649&ssPageName=STRK:MEBIDX:IT
However, when they arrived, they do smell strongly of machine oil. I have washed them with water and a bit of dish washing liquid. They don't smell as strong, but it still remains.
I am now concerned that these may not be suitable for home brewing as they may not be food safe?.
I have searched on the internet, and a lot of people are saying that they dismantle the valves to clean them properly every couple of months, but these ones a a single piece and I don't think I can get to the ball valve to clean them completely.
Also each of the 1/2" ball valves (not the 3 ways), seem to have a deposit of some sort at the end of the thread around the edging of the valve face (I have attached some photos), it almost looks like rust, I have tried to scrape it off but it won't come off. I am worried that I should not have my precious wort running through them.
Would any of this be an issue for my brewing?
Thanks,
Mat