Armstrong 174036MF-143; S-45 Circulator Pump (115v, 1/4hp, 110GPM)

Armstrong S-45 AB Bronze In-Line Circulators are apart of the Series S. The 1/4 HP bronze circulator pump is suitable for hydronic heating and cooling, domestic water systems, multi-stage zoning and general industrial service applications. Built using a standard three-piece design that features a radially-split body, oversized shaft, centrifugal impeller, positive mechanical seal and modular construction, Armstrong Pumps Series S Circulators are a trusted, durable product that have been used by HVAC professionals for decades.

Note: Flanges sold separately.

Standard three-piece design

Radially-split body: Can be left in-line while servicing pump, eliminating disconnecting of pipes

Oversized shaft: Made from special alloy steel

Centrifugal impeller: Ensures maximum water delivery in the HVAC system

Positive mechanical seal: ARMseal construction ensures many years of noise-free, trouble-free service

Modular construction: Unique shaft and bearing module fits for ease of serviceability and reduced inventory costs