How to replace broken union nut

[arhughes]

Hello,

The union nut that connects the waste pipe to my VariflowXL multiport cracked yesterday. The nut says 'Praher 1.5" UNION NUT U-150-4' on it.

I'm not entirely sure how to fix this. Here are the options I've thought of, not sure which of these is the correct way:

1. Purchase a compatible split union nut (not sure if any are available or how to find)
2. Purchase a replacement nut, cut the existing waste pipe to slip the nut onto, and reconnect the cut pipe with a pvc coupling
3. Purchase a whole new union, remove the existing one screwed into the multiport (is this possible? is it glued in there?), and cut the existing waste pipe to install the new union nut (similar to #2).
4. Get the broken nut back onto the waste pipe and use expoxy in the crack

Any suggestions would be helpful, thanks!

 

[Bperry]

Hello,

The union nut that connects the waste pipe to my VariflowXL multiport cracked yesterday. The nut says 'Praher 1.5" UNION NUT U-150-4' on it.

I'm not entirely sure how to fix this. Here are the options I've thought of, not sure which of these is the correct way:

1. Purchase a compatible split union nut (not sure if any are available or how to find)
2. Purchase a replacement nut, cut the existing waste pipe to slip the nut onto, and reconnect the cut pipe with a pvc coupling
3. Purchase a whole new union, remove the existing one screwed into the multiport (is this possible? is it glued in there?), and cut the existing waste pipe to install the new union nut (similar to #2).
4. Get the broken nut back onto the waste pipe and use expoxy in the crack

Any suggestions would be helpful, thanks!

Ditch #4, epoxy won’t hold very long. If you can find an exact replacement you may be able to just do swap out the parts, but they don’t seem to be very standard. Might have to go option 3.

 

[RLP]

They make split nuts for repair.

it would take some research and measurements, as there are multiple thread pitches and sizes.

Split Nut, 2", Pump Union

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[arhughes]

I was never able to find a split nut that worked, so I purchased a Praher 150-193 and replaced the plumbing (re-using the existing piece screwed into the multi-port valve).