Mr Blint
New Member
DIYer here. I want to install a Zurn backflow valve (3/4 FNPT) and need to buy a new coupling for the house side of the meter. The meter has "5/8" stamped into the bronze body on the mains side. I bought a meter coupling on eBay described so: 3/4" Lead Free Brass Water Meter coupling for 5/8 x 3/4. I assumed it would match the meter and the Zurn. It fits the Zurn valve OK but the ID of the female threaded coupling is 1- 3/16 inch, way too big for the meter. I assume they sent me the wrong item. Would that be for a 1 x 3/4?
On the house side, the male threads of the meter are almost but not quite a perfect match for a 3/4 FNPT copper adapter. I tried with such an adapter and it doesn't thread onto the meter very deeply, just a few turns.
The male threads on the Neptune 5/8 T-10 (3026 0823) meter measure 0.83 inches O.D.
I just spoke with customer service at Neptune, who asked me for the S/N on the unit and then checked and told me that the threads are NPSN 3 ⁄4” - 14” (Here's the product sheet: https://www.neptunetg.com/globalassets/products/literature/ps-t10-small-23-010383-07.23.pdf)
Thanks in advance for the help.
On the house side, the male threads of the meter are almost but not quite a perfect match for a 3/4 FNPT copper adapter. I tried with such an adapter and it doesn't thread onto the meter very deeply, just a few turns.
The male threads on the Neptune 5/8 T-10 (3026 0823) meter measure 0.83 inches O.D.
I just spoke with customer service at Neptune, who asked me for the S/N on the unit and then checked and told me that the threads are NPSN 3 ⁄4” - 14” (Here's the product sheet: https://www.neptunetg.com/globalassets/products/literature/ps-t10-small-23-010383-07.23.pdf)
Thanks in advance for the help.
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