S-57-3 3-Phase Bronze Fitted Cast Iron In-Line Pump, 3/4 HP, 208-230/460V

Note: This item is for hydronic heating systems, and should not be used in potable water systems.

Armstrong Series S & H in-line circulators are suitable for applications such as hydronics heating and cooling, domestic water systems, multi-stage zoning and general industrial service. Both models are available in a wide range of sizes to match the performance requirements of any of these applications. Armstrong Series S & H circulators are durable and trusted products that have been used by hvac professionals for decades. Besides the existing Sleeve bearing design, Armstrong now has introduced the ‘Maintenance free’ design which has permanently lubricated ball bearings and require no maintenance at all.

Features:

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