more circulator pump identification help P-4, B&G 1/6 hp (from a previous post)

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Old 07-24-13, 02:50 AM
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more circulator pump identification help P-4, B&G 1/6 hp (from a previous post)

This is from a previous thread.
I know it is extremely difficult to size a pump so I am trying to get some sort of an idea as to the possible head and gpm variations a P-4 and a standard B&G 1/6 hp circulator motor can have so that I can try to match it to a pump with ecm technologh, maybe a grundfos. Thank you everyone for your feedback.
 
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Old 07-24-13, 04:58 AM
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You need to compare their head-flow characteristic curves. They should be available on the manufacturers' websites.
 
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Old 07-24-13, 05:10 AM
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That was my question. I cant find anything online that gives head-flow characteristic curves for the P-4, B&G 1/6 hp pump I have.
 
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Old 07-24-13, 06:43 AM
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Heres another way to put it.
There are 4 different GRUNDFOS MAGNAs that I can chose

32-100
40-120
32-60
65-120

The head and gpm are on page 6 here Grundfos Magna

What Grundfos pump comes closest to the P-4, B&G 1/6 hp that I currently have?
 
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Old 07-24-13, 04:08 PM
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Looking at my B&G references, I found no listing for a model P-4 pump. The Grundfos Magna line of pumps have performance higher than what is typical for a residential hot-water heating application.
 
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