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Hydronic pumps circulate water throughout heating and cooling systems for heat transfer and chilling purposes in both residential and commercial applications. Types of hydronic pumps include small booster pumps, in-line circulators, end-suction pumps, close coupled in-line pumps and more. Pumps are available in a variety of materials including bronze, cast iron, and stainless steel in capacities ranging from 3 GPM to more than 5000 GPM. They are also available in a variety of pipe size connections. State Supply offers hydronic pumps from Bell & Gossett, Grundfos, Mepco, Shipco, and Taco.
Find manufacturer-specific product information
The Taco 121C is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 121C features a 1/4 HP, 1725 RPM, 115v single phase motor. Companion flanges are included in 2-1/2".
The Taco 122C is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 122C features a 1/4 HP, 1725 RPM, 115v single phase motor. Companion flanges are included in 3".
The Taco 132C-1PH is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 131C features a 1/2 HP, 1725 RPM, 115v single phase motor. Companion flanges are included in 3".
The Taco 132C-3PH is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 132C features a 1/2 HP, 1725 RPM, 230/460v three phase motor. Companion flanges are included in 3".
The Taco 133C-1PH is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 133C features a 3/4 HP, 1725 RPM, 115v single phase motor. Companion flanges are included in 3".
The Taco 133C-3PH is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 133C features a 3/4 HP, 1725 RPM, 230/460v three phase motor. Companion flanges are included in 3".
The Taco 138C-1PH is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 138C features a 1 HP, 1725 RPM, 115v single phase motor. Companion flanges are included in 3".
The Taco 138C-3PH is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 138C features a 1 HP, 1725 RPM, 230/460v three phase motor. Companion flanges are included in 3".
The Taco 121B is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 121B features a 1/4 HP, 1725 RPM, 115v single phase motor. Companion flanges are included in 2-1/2".
The Taco 122B is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 122B features a 1/4 HP, 1725 RPM, 115v single phase motor. Companion flanges are included in 3".
The Taco 131B is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 131B features a 1/3 HP, 1725 RPM, 115v single phase motor. Companion flanges are included in 3".
The Taco 132B-1PH is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 132B features a 1/2 HP, 1725 RPM, 115v single phase motor. Companion flanges are included in 3".
The Taco 132B-3PH is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 132B features a 1/2 HP, 1725 RPM, 230/460v three phase motor. Companion flanges are included in 3".
The Taco 133B-1PH is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 133B features a 3/4 HP, 1725 RPM, 115v single phase motor. Companion flanges are included in 3".
The Taco 133B-3PH is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 133B features a 3/4 HP, 1725 RPM, 230/460v three phase motor. Companion flanges are included in 3".
The Taco 138B-1PH is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 138B features a 1 HP, 1725 RPM, 115v single phase motor. Companion flanges are included in 3".
The Taco 138B-3PH is an in-line cartridge design pump used to circulate heated or chilled water in large residential and commercial hydronic systems. The 138B features a 1 HP, 1725 RPM, 230/460v three phase motor. Companion flanges are included in 3".
The Armstrong Pump S-25 is a 1/12 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump S-35 is a 1/6 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump S-45 is a 1/4 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump S-46 is a 1/3 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump S-55-1 is a 1/2 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump S-55-3 is a 1/2 HP, three phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump S-57-1 is a 3/4 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump S-57-3 is a 3/4 HP, three phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump S-69-1 is a 1 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized alloy steel-copper shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump S-69-3 is a 1 HP, three phase circulator pump that features a radially-split bronze-fitted body, oversized alloy steel-copper shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-32 is a 1/6 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-41 is a 1/6 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-51-1 is a 1/4 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-51-3 is a 1/4 HP, three phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-52-1 is a 1/3 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-52-3 is a 1/3 HP, three phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-53-1 is a 1/2 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-53-3 is a 1/2 HP, three phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-54-1 is a 3/4 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-54-3 is a 3/4 HP, three phase circulator pump that features a radially-split bronze-fitted body, oversized stainless steel "maintenance free" shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-63-1 is a 1/2 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized alloy steel-copper shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-63-3 is a 1/2 HP, three phase circulator pump that features a radially-split bronze-fitted body, oversized alloy steel-copper shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-64-1 is a 3/4 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized alloy steel-copper shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-64-3 is a 3/4 HP, three phase circulator pump that features a radially-split bronze-fitted body, oversized alloy steel-copper shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-65-1 is a 1 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized alloy steel-copper shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-65-3 is a 1 HP, three phase circulator pump that features a radially-split bronze-fitted body, oversized alloy steel-copper shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-66-1 is a 3/4 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized alloy steel-copper shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-66-3 is a 3/4 HP, three phase circulator pump that features a radially-split bronze-fitted body, oversized alloy steel-copper shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-67-1 is a 1 HP, single phase circulator pump that features a radially-split bronze-fitted body, oversized alloy steel-copper shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-67-3 is a 1 HP, three phase circulator pump that features a radially-split bronze-fitted body, oversized alloy steel-copper shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump H-68-3 is a 1-1/2 HP, three phase circulator pump that features a radially-split bronze-fitted body, oversized alloy steel-copper shaft, centrifugal non-ferrous impeller, sintered silicon carbide seal, and modular construction. This model has a shaft and bearing module that can be easily removed and replaced.
The Armstrong Pump Astro 2 225BS is a variable three-speed, single phase bronze circulator pump for potable water with a 1/2" sweat connection.
The Armstrong Pump Astro 2 225BS is a variable three-speed, single phase bronze circulator pump for potable water with a 3/4" sweat connection.
In this video, Paul from The Engineering Mindset takes a look at pump charts to understand the basics of how to read a pump chart. We look at basic pump curve, head pressure, flow rate, pump performance, impeller size, efficiency, NPSH, multi-speed pumps, VFD's, rotational speed, voltage, frequency, and phases to help you learn HVAC, HVACR, and mechanical engineering.
In this video, Paul from The Engineering Mindset covers the basics of how centrifugal pumps work, the main parts of centrifugal pumps, how an electric motor powers the pump impeller and how the impeller moves water in the HVAC system.