174036MF-113 ARMSTRONG • 1/4 hp 115V Circulator Pump 2 1/2" • Model S-45

45.00 LBS
Calculated at Checkout
Was: $1,566.00
Now: $1,384.00
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S-45 MF/BF Armstrong In-Line Circulator Complete Pump Assembly 

  • 1/4 HP, 1725 RPM, 5.0 amps, 115 Volts 60HZ
  • No Oiling, Maintenance-free design uses permanently lubricated ball bearings
  • 2 1/2" Flanged
  • 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 
    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 Pump Bell & Gossett Series 100 Model 2 1/2 & HD3
Armstrong Previous Models 174036-113
Grainger 4RC97
TACO # 121
Thrush 22-1/2C

Replacement Parts:
816027MF-002 • Bearing Assembly - Includes New Impeller
816305-328 • 3-7/8" Impeller
806168-001 • Spring Coupler
CP-R1354 • New 1/4HP Electric Motor