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02-22-2017, 01:29 PM
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#1
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Established Member
Join Date: Jan 2015
Location: Flushing
Posts: 19
M.O.C. #16009
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Valterra dump valve replacement?
I am getting ready to replace my dump valves with valterra valves and was wondering if anyone knows if the mounting flanges also need to be changed out? I am hoping that the valves are direct replacements for the OEM valves. It would make the install much easier.
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02-22-2017, 02:34 PM
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#2
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,701
M.O.C. #12947
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The flanges are industry standard, so any valve will work with them.
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02-22-2017, 04:02 PM
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#3
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Montana Master
Join Date: Feb 2003
Location: Englewood
Posts: 3,095
M.O.C. #164
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You will get the valve 2 Rubber Gaskets and 4 Bolts and nuts. The only thing tricky is installing the gaskets and keeping them in place. I use a dab of silicon applied the day prior to keep them in place do not over tighten the through bolts
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02-22-2017, 05:58 PM
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#4
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Established Member
Join Date: Jan 2015
Location: Flushing
Posts: 19
M.O.C. #16009
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Thanks for the answers.
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03-04-2017, 12:51 PM
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#5
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Montana Fan
Join Date: Jun 2011
Location: Aptos
Posts: 427
M.O.C. #11462
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If the fit is to tight, you may have to cut the black ABS pipe in order to separate the flanges in order to remove and replace the valves. I had to cut 3/8" off the ABS pipe and use a rubber no-hub coupling to do the replacement. Also, I cut access panels above the valves in the storage area. Makes a much easier job standing up do this as opposed to removing under liner and laying on your back and having fluids dripping on you, YUCK, LOL. Hope this helps, I have pictures of accesses if needed.
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03-04-2017, 01:36 PM
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#6
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Established Member
Join Date: Jan 2015
Location: Flushing
Posts: 19
M.O.C. #16009
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Yes it helps. The valves I am replacing are under the floor area of the unit. So my only option is to work thru the under liner. I am hoping that I can remove and reinstall without cutting the pipes. Not looking forward to mess. Thanks again for the advise.
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03-04-2017, 04:11 PM
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#7
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Montana Master
Join Date: Aug 2010
Location: Washington Coast
Posts: 2,688
M.O.C. #10696
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I have done it twice and it is no big deal and both times I peeled back the Underbelly for good access and just make sure you drain the tanks Good by pushing up in the middle of the tank with the valve open to get most of the liquid out and it will not be much of a mess when you take the old valves out very little liquid will come out You are going to like the results
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03-04-2017, 06:10 PM
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#8
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Montana Master
Join Date: Feb 2003
Location: Englewood
Posts: 3,095
M.O.C. #164
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I have done this many times no need to cut pipe!
The tricky thing is to keep the two rubber seals in place when you slide the valve in between the two flanges if they do seat properly you are going to have a leaker! I put a dab of Silicone on each to hold in place the night before so it will cure. Do not over tighten the thru bolts!
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