S-57 MF Armstrong In-Line Circulator
- 3/4 HP, 1725 RPM, 115/230 Volts, 60HZ
- 3" Round Flanges
- No Oiling, Maintenance-free design uses permanently lubricated ball bearings
- Impeller Material: Non-ferrous
- Stainless Steel Shaft
- Standard Three-Piece Design; Cast Iron
- Includes Hardware Kit - Mounting Bolts and (2) Rubber Flange Gaskets
- Threaded Flange Not Included - Sold Separately
- 1 Year Manufacture Warranty
- NOT FOR USE IN POTABLE WATER SYSTEMS
Has not been designed to be compliant with the “Safe Drinking Water Act” - All circulators are to be mounted with motor and pump in horizontal position
This Armstrong pump is equipped with permanent lubricated ball bearings, ensuring superior performance when compared to the Bell & Gossett pump which requires regular oiling and maintenance.
Armstrong Series S & H in-line circulators are ideal for applications such as hydronic heating and cooling, domestic water systems, multi-stage zoning and general industrial service. Armstrong 3-piece circulators use a proven design that continues to evolve. The expanded temperature range makes them suitable for more applications, and the industry-accepted flange configuration makes s&h circulators a perfect solution when you need to change out pumps quickly without the need for pipe modifications.
Replacement for the following models:
Bell & Gossett Series 100 Model PD-37S, 105097
Armstrong Previous Models 106285-132
Grainger 4RD14
Replacement Parts:
816032MF-000 • Bearing Assembly
816304-317K • 5-1/4" Impeller
806137-000 • Flex Coupler
3261 • New 3/4HP Electric Motor
