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S-25 Circ Blue ArrowArmstrong S-series circulators are engineered for durability and serviceability, their design makes them an ideal efficient and trouble free pump for use in residential and commercial hot water heating systems.


Grund-up-pumps UP-15-58 Blue ArrowGrundfos UP Series
* Wet Rotor technology
* Industry standard flange-to-flange
* Built-in motor protection
* Quiet, maintenance free
* Three-speed control
* Newly designed Grundfos convergent vane impeller provides optimum efficiency and lower operating cost.



E-10 E10-B E10-2 Blue arrow Armstrong E Series circulators can be used in a wide range of hydronics applications including hot water and chilled water recirculation, domestic hot water generation and radiant panel, geothermal and snow melt installations.

Available in cast iron and bronze construction, ARMflo E Series circulators are as much as 74% more energy efficient than wet rotor pumps of similar power.

With flange to flange dimensions and flow/head characteristics matching many competitive pumps, E Series circulators can be easily used as replacement upgrade for existing installations.

Flow rates are as high as 68 USgpm and capacity up to 42 ft.
APS Pumps & Motors stocks a large number of Armstrong & Grundfos circulators. Please call our office if you don't see the model you need. We stock replacement parts for most models.