Union parts.

[tcat]

It's there a source that defines union part numbers? I have a couple 2" white unions, with "415-5090" on the nut. I'd like to keep the nut side and buy what it's screwing into. My plumbing is lacking enough straight pipe not to keep the nut side. I'm going to convert my DE filter to a cartridge, and trying to buy what I need in advance.

 

[ajw22]

It's there a source that defines union part numbers? I have a couple 2" white unions, with "415-5090" on the nut. I'd like to keep the nut side and buy what it's screwing into. My plumbing is lacking enough straight pipe not to keep the nut side. I'm going to convert my DE filter to a cartridge, and trying to buy what I need in advance.

Bing/Google

Waterway Plastics Self-Aligning 2" Union Nut | 415-5090

Pool Supply Unlimited has some of the best prices when shopping for Waterway Plastics Self-Aligning 2" Union Nut | 415-5090

www.poolsupplyunlimited.com

https://waterwayplastics.com/catalogs/2011_poolspa_18_unions.pdf

 

[tcat]

Bing/Google

Waterway Plastics Self-Aligning 2" Union Nut | 415-5090

Pool Supply Unlimited has some of the best prices when shopping for Waterway Plastics Self-Aligning 2" Union Nut | 415-5090

www.poolsupplyunlimited.com

https://waterwayplastics.com/catalogs/2011_poolspa_18_unions.pdf

Thanks. I see a 400-5090 (I'm sure that's the assembly), but it's not broken down into it's parts (like the ones above it). Looking for "C", maybe 417-5040? Yeah I could buy the whole thing, but if the other part is available, why not?

After looking closer, it's either 417-5040 or 417-5040B. Will need to take it apart to see which side the o-ring is on. Time to clean out the pump basket .

 

[InyoRich]

I know it's wasteful - but it's (almost) like trying to build any finished product with individual parts rather than buying the finished product. Google sez:

 

[tcat]

I know it's wasteful - but it's (almost) like trying to build any finished product with individual parts rather than buying the finished product. Google sez: View attachment 624651View attachment 624652

Agree. The question is even buying the whole assembly, you don't know which side the o-ring is on. Some have the o-ring on the part on the right. I'll be taking it apart next time I clean the pump or SWG.

 

[InyoRich]

I think that union has the flat gasket - and I think that the "B" suffix is the old part # which specified either the color (black) or a buttress thread (Per Waterway, the 417-5040 supercedes the 5040B and is buttress-threaded)... There are a lot of "thinks" in there... The parts should be interchangeable - the style of the knurl on the nut says that the new replacement 400-5090 is the same as the one on your system.

 

[tcat]

Decided to clean my cell. Looks like the o-ring/groove is on the part I'm keeping. This has a taper on it that's not on any of the other pictures. Probably not needed, since it just needs a flat surface. Looks like metals are getting into the water, but this is 18 years.