The 116443MF-136A Armstrong H53-3 Cast Iron Pump 1/2HP 3PH 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 H Circulators are a trusted, durable product that have been used by HVAC professionals for decades.

The 116443MF-136A Armstrong H-53-3 Cast Iron Pump 1/2HP 3PH 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 H Circulators are a trusted, durable product that have been used by HVAC professionals for decades.

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