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THE ARMSTRONG S&H CIRCULATING PUMP A MULTI-PURPOSE WITH GREAT FUNCTIONALITYThe Armstrong S & H circulating pump is a great pump in the Armstrong lineage of pumps that is appropriate for hydronics heating and cooling, multi-stage zoning, industrial service and domestic water cooling. It is available in different sizes to suit different purposes. You may use it for pumping water efficiently both at home or industrial areas. The Structure: The pump has a three-piece body with a radia …

Armstrong Pumps – Manufacturer’s overview Armstrong Circulator pumps have been a favourite among Americans looking for quality HVAC equipments. At National Pump Supply, we stock the best pumps that will meet all of your HVAC systems. As temperatures are sliding downhill, circulator pumps are more on demand because they are the heart of any HVAC systems – they circulate hot water in a closed circuit. Thus choosing the best circulator pumps is important because if they fail in th …