Armstrong Series H Circulator Pump. The Armstrong H-66 series circulator has a 3/4 HP motor and is 208/230/460 volts three phase. The dimensions of the pump in inches is 23.25 x 14 x 19.75. The Armstrong Circulator is BRONZE and the part number is 116504-137.Body - Radially-split body can be left in the line while servicing the pump, eliminating needless disconnecting of pipes.
Oversized Shaft - ARMSTRONG circulating pumps have oversized shafts of special alloy steel, machined to exacting tolerances. Shafts have integral thrust collars, heat treated to provide long life under severe duty conditions.
Centrifugal Impeller - Balanced impeller of centrifugal design ensures maximum water delivery.
Positive Mechancial Seal - A tried and proven method of preventing water leakage, the well-known ARMSEAL construction is an often imitated feature of the ARMSTRONG circulator. Made of long-lasting, hardwearing materials, it ensures many years of noise-free, trouble-free service.
View Recirculating Product Datasheet (pdf format) 
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