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Old 03-17-2013, 09:04 PM   #1
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Watts pressure regulator


I have a watts n35b (discontinued) pressure regulator that is dripping that was caused by freezing temperatures. everything else damaged by the freeze was repaired except for the regulator. I want to attempt repairing/replacing regulator myself.

I was told they can be rebuilt or is it best to just replace it?

lowes has a model N45b for $28 and a model 25AUB-Z3 for $75.

will the n45b work for me?

i read instructions on replacing it in another post. it is only dripping from the nut on the bottom. there is an O ring on the nut, will replacing O ring help?

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Old 03-17-2013, 09:09 PM   #2
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Watts pressure regulator


You should be able to get a rebuild kit from watts or a watts dealer.
Using a different valve might mean you need to modify your piping due to different lengths- maybe not a big thing...

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Old 03-17-2013, 09:12 PM   #3
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Did u try to google rebuild kit for watts n35b? anything pop up. That would be great if u can find one, if not you'll have to replace. You said nut is on bottom, so it's mounted in the down position. When u take those 4 screws out, you'll have everything in your hand, be careful and try to remember how everything goes back together. If u forget u can look at spec sheet, no worries. Might as well just rebuild all of it, or go new like u suggest. Up to u. Where here to help.

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Old 03-17-2013, 09:13 PM   #4
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I'll try my search engine and see what I can find.
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Old 03-17-2013, 09:18 PM   #5
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Watts pressure regulator


Repair Kits
ORDERING CODE KIT NO. SIZE (DN) CONTENTS
In. mm
0006849 N35B-RK
12", 34", 1" 15, 20, 25 Rubber Parts ・・
0006804 N35B-SRK
12", 34", 1" 15, 20, 25 Seat, O-rings \

When Ordering, Specify:
1. Ordering Code 3. Type Number
2. Size of Valve 4. Model shown on Nameplate
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Old 03-17-2013, 09:24 PM   #6
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Try this link. Read spec sheet. Does this look like yours?



link here


This is the link for seat if you need it.


link here


Looks like 30 dollars plus shipping for the entire kit, or do u want to go new? U said new one is 75 dollars.

If u want to go new, throw up a couple pictures of it. let's see what u got their?

Last edited by jmon; 03-17-2013 at 09:42 PM.
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Old 03-18-2013, 11:32 AM   #7
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Watts pressure regulator


I took valve to home depot and lowes and neither had a match, they recommended trying a local plumbing supply shop and they had a match. they gave me a wilkins NR3XL for $48 that looks the same size as the n35b

The rebuild kit was $20+ so just bought new.

Ill install it soon and see how it works.

Thanks

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Old 03-18-2013, 12:17 PM   #8
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Your welcome. Good choice going new, rebuilding can be a bit of pain. Let us know how it worked out for u. Thanks, and thanks for using your local plumbing supply store.


Last edited by jmon; 03-18-2013 at 12:21 PM.
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