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09-03-2010, 09:51 AM
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#1 |
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The Old (antique) Master
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Bradford/White Observation
Installed 2 M2 80'S yesterday. The H & C piping nipples on the heater look like they have been changed to Stainless Steel. They still have the plastic check stops in them. Does this make a change to galvanic action.
when connected to copper tube? Wondering Parr!!
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Bill Parr LMP www.parrsplumbing.com click on ... A little of this and a little of that |
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09-03-2010, 01:03 PM
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#2 |
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philosopher and statesmen
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galvanic action
I usually pull those plastic flappers out
and I am concerned about the galvanic action with either the unions or copper connectors.... I would rather use quick connects on all of them I install
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God created man, Sam Colt made them equal." http://www.youtube.com/watch?v=swkq2E8mswI http://www.youtube.com/watch?v=tQMO1eyMRuM |
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09-03-2010, 03:44 PM
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#3 |
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Moderator
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I have been under the impression that ss had similar dielectric qualities as brass does, or better....
I have no real proof as to wether or not that is true....just generally accepted as true...
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AG..Keepin' the good water from the bad water.... |
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09-04-2010, 11:16 PM
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#4 |
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soccer mom
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SS is between brass and galvo on the noble scale. it's a great dielectric.
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09-05-2010, 08:44 AM
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#5 |
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Senior Member
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Should be OK Bill. SS just doesn't get as much notice because of cost. I think the fact that it is a non-ferrous metal is part of reason it works.
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John Johnson Water Works Plumbing, Inc. - Oklahoma City, OK Water Works on the Web Water Works on Facebook |
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09-08-2010, 09:41 AM
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#7 |
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Junior Member
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Bradford White Water Connections
Bradford White's water connections (made from chromate steel with a polypropylene liner, not stainless steel) are dielectric nipples that protect against galvanic corrosion by creating a dielectric waterway by isolating the inside of the metal pipe nipple, thus inhibiting the formation of a galvanic cell between dissimilar metals (copper piping and steel water heater) in contact with the water.
An installation could see external pipe nipple corrosion, however systems rarely corrode to failure from the outside of the fittings unless a significant leak is allowed to continue. Galvanic corrosion, localized cell and stray electrical problems are caused by the internal contact of dissimilar metals in the presence of water. The Bradford White water connections provide effective protection against these conditions. The plastic heat trap lip isolates the system piping thread from the water heater thread and if removed it would make corrosion more likely but still not probable. I hope this helps with your questions. Regards, Jason Fifer Product Manager Bradford White Corporation |
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| The Following 3 Users Say Thank You to fiferjason For This Useful Post: |
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09-08-2010, 02:21 PM
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#8 | ||
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The Old (antique) Master
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Quote:
Quote:
Mr. Fifer thank you for your reply. I am well aware of what B/W nipples looked like. This post the other day was something that looked different. The nipples were shiny and looked highlY polished. The other thing that caught my eye was, they were a bit longer in length. On older heaters when attaching a 3/4" C to F adapter the adapter would almost bottom out on the heater jacket. These had about 3/8" nipple showing before the bottom of the thread started. Serial # of the heater was GC13179233 KUDOS "THE NICEST LOOKING CHROMATE I EVER SAW"
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Bill Parr LMP www.parrsplumbing.com click on ... A little of this and a little of that |
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09-08-2010, 10:57 PM
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#9 | |
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٩(͡๏̯͡๏)۶
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I thought SS is a ferrous metal. It has iron in it doesn't it?
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09-09-2010, 01:55 AM
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#10 | |
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Senior Member
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Quote:
The highest quality stainless steel won't allow a magnet to stick to it. The cheaper S/S sticks to a magnet. I carry a small screwdriver in my shirt pocket when working to test among other things, closet bolts. When buying Johnny bolts, if my magnet sticks, I don't use 'em. Some tank bolts will stick to magnet, those too I won't use. The high quality S/S has higher levels of chromium and nickel.
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