Yes, it is a big problem. I have a well water system in my house and it is a constant battle to keep the system running. The iron fittings that I can get (chinese made) don't last more than a few years. Apparently the galvanizing is very thin so they rust out in a few years. I've replaced all of the pump fitting at least three times in 12 years now. I'd prefer to use all plastic but there are some places were plastic just doesn't work well.
Dave On 1/1/2010 11:11 PM, Cal Grandy wrote: > Continued: > > The "inferior fittings" seem to be the only type available from the local > hardware store. An average consumer has no choice. > > Sad that. > > CalG > ----- Original Message ----- > From: "Dave"<e...@dc9.tzo.com> > To: "Enhanced Machine Controller (EMC)"<emc-users@lists.sourceforge.net> > Sent: Friday, January 01, 2010 17:28 > Subject: Re: [Emc-users] Brass fittings& EMC > > > >> Unfortunately you are right. >> >> I visited a customer of mine early last week and they were putting >> together a manifold for cooling water lines on a machine that had to >> ship before Christmas. He had ordered some brass fittings - push on >> hose barb to NPT male thread - I believe they were 1/2" x 1/2". He >> tossed me one and said what do you think..?. I wasn't sure what he was >> referring to. Then he tossed me another one. Both were the same size, >> but one was noticeably heavier than the other. The lighter one had a >> heavier wall through the fitting but it was quite a bit shorter and the >> color of the brass was a very light color - almost like it was some type >> of Alum alloy. The other piece was machined out of brass hex bar and >> was full length. The first one was a Chinese made fitting that they had >> first received. The second one was from a US maker. He said they began >> using the US made fittings after they found out that the Chinese made >> fittings would twist off when tightened. The inferior fittings came >> from a national distributor who I am sure thought that they had gotten a >> very good price on some brass fitting. >> >> I have no idea what alloy they were but obviously they were of inferior >> quality. >> >> Dave >> >> On 1/1/2010 3:21 PM, Matt Shaver wrote: >> >>> On Fri, 1 Jan 2010 19:19:54 +0200 >>> Roland Jollivet<roland.jolli...@gmail.com> wrote: >>> >>> >>>> You re-coup money in the shavings. >>>> >>>> >>> This is the key to what's being said here. Let's say two manufacturers >>> make the same fitting starting with the same size brass blank. >>> >>> 1. They both sell it for the same wholesale price to their clients. >>> >>> 2. Each has identical labor and overhead costs in each part. >>> >>> 3. The manufacturer who scoops out more of the interior of the part and >>> converts it to chips (without increasing the machining time) will >>> realize greater profit because they will recoup more of their stock >>> cost from the sale of the chips. >>> >>> HOWEVER - The customer is being robbed because he is not getting all >>> the material he is paying for! This is possible because there is no >>> acceptance inspection by the receiver, because the dimensions that are >>> undersized are uncontrolled by the part specification. >>> >>> Methods like these are the basis of the Chinese manufacturing >>> economy. Here's a good explanation: >>> http://knowledge.wharton.upenn.edu/article.cfm?articleid=1776 >>> >>> Thanks, >>> Matt >>> >>> >>> ------------------------------------------------------------------------------ >>> This SF.Net email is sponsored by the Verizon Developer Community >>> Take advantage of Verizon's best-in-class app development support >>> A streamlined, 14 day to market process makes app distribution fast and >>> easy >>> Join now and get one step closer to millions of Verizon customers >>> http://p.sf.net/sfu/verizon-dev2dev >>> _______________________________________________ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> >>> >>> >> >> ------------------------------------------------------------------------------ >> This SF.Net email is sponsored by the Verizon Developer Community >> Take advantage of Verizon's best-in-class app development support >> A streamlined, 14 day to market process makes app distribution fast and >> easy >> Join now and get one step closer to millions of Verizon customers >> http://p.sf.net/sfu/verizon-dev2dev >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> > > ------------------------------------------------------------------------------ > This SF.Net email is sponsored by the Verizon Developer Community > Take advantage of Verizon's best-in-class app development support > A streamlined, 14 day to market process makes app distribution fast and easy > Join now and get one step closer to millions of Verizon customers > http://p.sf.net/sfu/verizon-dev2dev > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
