Recirculation pump

[tone100]

I have a hot water recirculation system in my house with the return line.

My pump sounds like it’s running but I’m not getting instant hot water anymore.

I need to replace it but they don’t make the same model anymore.

It’s a Wilo Star Z 15 BS7.

Can you recommend a replacement pump with similar specs. This one is installed on pec but I’d like to use unions.

 

[John Gayewski]

Taco 003 in bronze.

 

[Sponsor]

 

[another old guy]

Taco 003 in bronze.

I looked at the manual for their "00 series cartridge circulators, and it says
"3. Cast iron circulators are to be used for closed loop systems. Bronze or stainless steel circulators are to be used for
open loop, fresh water, or potable water systems." Do I still want it in bronze? I would be using the 3/4 inch NPT fitting model BT4 Pretty sure mine is closed as I know I will need a check valve under sink at the furthest faucets as I would need to use the cold line. And of course I could be completely wrong about having a closed system. Maybe you can help clarify that for me too lol. Promise not to ask you to come and install it.
Appreciate your advice, thanks !

 

[John Gayewski]

I looked at the manual for their "00 series cartridge circulators, and it says
"3. Cast iron circulators are to be used for closed loop systems. Bronze or stainless steel circulators are to be used for
open loop, fresh water, or potable water systems." Do I still want it in bronze? I would be using the 3/4 inch NPT fitting model BT4 Pretty sure mine is closed as I know I will need a check valve under sink at the furthest faucets as I would need to use the cold line. And of course I could be completely wrong about having a closed system. Maybe you can help clarify that for me too lol. Promise not to ask you to come and install it.
Appreciate your advice, thanks !

Potable water needs to be bronze or stainless no matter what.

 

[another old guy]

Thx !

 

[tone100]

Do they make a wall bracket for this pump? It’s going to be connected to pex.

 

[John Gayewski]

Do they make a wall bracket for this pump? It’s going to be connected to pex.

No. Hard pipe on both sides of the pump and split ring hangers is what I do.