Constant Delta P Circs

Josh_10

Hi guys. I am on the look out for multiple manufacturers of constant delta P circs. I want a few more options than I know about currently. Can you guys let me know of the brands and types you are using?

Thanks,

Josh

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Josh_10

*Bump*

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Brad White_9

Aside from the

Grundfos Alpha (and wasn't there an Armstrong offering?), any VFD-driven circulator that will accept a proportional analog signal from a DP controller will work.

The notion of getting these built-in to the circulator of course has enourmous appeal. But if you cannot wait, the technology itself is not new.

Josh_10

Thanks Brad, I am actually refering to circs on a residential level. We work on alot of VFD's so I am pretty well versed in that technology already.

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Brad White_9

So was I, Josh

Even the Grundfos variable flow circs take inputs like those on the residential level, which is pretty neat in itself, taking industrial type control down to the residential level. Small ones in the 15-58 level and even less, I think.


Of course you would know the commercial end, hope it was not "talking down" to you (not my way at all), rather me speaking to a wider audience.

Still, built in? Cannot wait to try one!

Brad