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Posted by HeatPro on May 15, 2006 at 12:21:00:
In Reply to: Re: The steps to Design a Radiator System posted by joe on May 14, 2006 at 21:37:13:
Yes, you can use the 3/4 circulator with no problem on a 1-inch line. The 3/4 flange is just there for convenience as the most popular size.
BTW, that is the most ancient of questions, as old B&G coupling-type circulators were identified for purposes with flange sizes to satisfy required flows. That hasn't applied for half a century. The Taco 007 flow rate is as on their charts with 3/4 flanges for particular resistances which require knowing the circuit distance as well as the tubing diameter.