January 10, 20242 yr I’m looking at installing a secondary circulating pump. The ‘go-to’ seem to be Grundfos comfort or these: https://www.anchorpumps.com/lowara-ecocirc-pro-15-1-65br-1-2-bronze-circulator-with-temp-control-240v I cannot for the life of me figure out the fittings needed to take this down to 15mm copper. Ideally I also want to put 1/4 lever valves either side for easy maintenance. These HRC pumps seem to have either 1/2” female parallel or 1-1/4” male parallel ports. What fitting would I need to drop either of those to 15mm copper? These look perfect https://www.toolstation.com/perfect-pump-valves/p52920 but I’m pretty sure are 1-1/2 on the pump side (normal size for main circulator?) No apparent equivalent for 1-1/4 port Edited January 10, 20242 yr by OwenF
January 10, 20242 yr Author Great, thanks. It was your posts that led me to the Lowara pump. I can see a lot of adaptors between the pump and the copper. Any chance you can recall what each is? Looks like: pump 1/2” male to ? female coupler NRV (1/2 to 1/2?) 1/2” female to 15mm compression bend copper the one out of sight looks simpler My understanding is the 1/2” male into the pump has to be taper, or if parallel needs to be a union with washers.
January 10, 20242 yr 1 hour ago, OwenF said: Great, thanks. It was your posts that led me to the Lowara pump. I can see a lot of adaptors between the pump and the copper. Any chance you can recall what each is? Looks like: pump 1/2” male to ? female coupler NRV (1/2 to 1/2?) 1/2” female to 15mm compression bend copper the one out of sight looks simpler My understanding is the 1/2” male into the pump has to be taper, or if parallel needs to be a union with washers. I know a bunch of fittings came with the pump, including nrv. But cannot recall exactly what. I would wait until you get the pump and go from there. They change design all the time,
Create an account or sign in to comment