{"product_id":"armstrong-e7-2b-armflo-bronze-circulating-pump-all-bronze-construction","title":"Armstrong E7.2B ARMflo Bronze Circulating Pump | All-Bronze Construction","description":"\u003cp class=\"ds-markdown-paragraph\"\u003eFor applications demanding maximum corrosion resistance in a compact, efficient package, the Armstrong E7.2B ARMflo Bronze Circulating Pump delivers exceptional performance and durability. This versatile circulator features all-bronze construction throughout its liquid end, making it the ideal choice for domestic water systems, coastal installations, marine applications, and any environment where iron contamination from standard cast iron pumps cannot be tolerated. Its efficient design and corrosion-resistant materials ensure long-term reliability in challenging water conditions.\u003c\/p\u003e \u003cp class=\"ds-markdown-paragraph\"\u003eThe pump utilizes Armstrong’s advanced wet-rotor technology, providing quiet, maintenance-free operation while eliminating the need for routine lubrication. The bronze construction offers superior protection against rust and corrosion, significantly extending service life in aggressive water environments. With its compact, inline configuration and standard connection sizes, the E7.2B installs easily in tight spaces while delivering consistent, reliable fluid movement. The wet-rotor design ensures quiet operation, making it suitable for residential applications where noise is a concern. For help with material selection, read our guide on \u003cstrong\u003e[Choosing Between Bronze and Stainless Steel Circulators]\u003c\/strong\u003e.\u003c\/p\u003e \u003cp class=\"ds-markdown-paragraph\"\u003eAs part of Armstrong’s respected ARMflo series, this bronze pump continues a tradition of quality that plumbing and HVAC professionals trust for critical applications. Whether maintaining a domestic hot water recirculation loop in a commercial building or ensuring corrosion-free operation in a marine environment, the E7.2B provides the material compatibility and dependable performance needed for long-term system integrity. Learn about its advantages in our article \u003cstrong\u003e[The Benefits of Bronze Construction in Plumbing Systems]\u003c\/strong\u003e.\u003c\/p\u003e \u003chr\u003e \u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e \u003cdiv class=\"ds-scroll-area _1210dd7 c03cafe9\"\u003e \u003cdiv class=\"ds-scroll-area__gutters\"\u003e \u003cdiv class=\"ds-scroll-area__horizontal-gutter\"\u003e\u003c\/div\u003e \u003cdiv class=\"ds-scroll-area__vertical-gutter\"\u003e\u003c\/div\u003e \u003c\/div\u003e \u003ctable\u003e \u003cthead\u003e \u003ctr\u003e \u003cth\u003eSpecification\u003c\/th\u003e \u003cth\u003eDetails\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eArmstrong E7.2B ARMflo (182202-644)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eMotor Power\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e1\/12 HP (0.08 kW)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eConnection Size\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e3\/4″ FIPT x 3\/4″ FIPT\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eImpeller Material\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eBronze\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eHousing Material\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eBronze\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eMax Head\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e8 ft (2.4 m)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eMax Flow\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e20 US gpm (76 L\/min)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eSpeed Settings\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eSingle Speed\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eMax Operating Pressure\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e125 psi (8.6 bar)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eMax Fluid Temperature\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e230°F (110°C)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e115V, 1-Phase\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e6 lbs (2.7 kg)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003chr\u003e \u003ch3\u003e\u003cstrong\u003eComparison Table: Armstrong Bronze ARMflo vs. Alternative Pumps\u003c\/strong\u003e\u003c\/h3\u003e \u003cdiv class=\"ds-scroll-area _1210dd7 c03cafe9\"\u003e \u003cdiv class=\"ds-scroll-area__gutters\"\u003e \u003cdiv class=\"ds-scroll-area__horizontal-gutter\"\u003e\u003c\/div\u003e \u003cdiv class=\"ds-scroll-area__vertical-gutter\"\u003e\u003c\/div\u003e \u003c\/div\u003e \u003ctable\u003e \u003cthead\u003e \u003ctr\u003e \u003cth\u003eFeature\u003c\/th\u003e \u003cth\u003eArmstrong E7.2B Bronze\u003c\/th\u003e \u003cth\u003eStandard Cast Iron Circulator\u003c\/th\u003e \u003cth\u003eCompetitor Bronze Pump\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eLiquid End Material\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eAll-Bronze Construction\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eCast Iron\/Bronze Impeller\u003c\/td\u003e \u003ctd\u003eBronze\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eCorrosion Resistance\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eExcellent\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003ePoor\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eApplication Range\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eDomestic Water, Coastal, Marine\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eClosed-Loop Heating Only\u003c\/td\u003e \u003ctd\u003eDomestic Water, Corrosive\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eLightweight\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eHeavy\u003c\/td\u003e \u003ctd\u003eMedium\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003ePotable Water Approved\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eYes\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eNo\u003c\/td\u003e \u003ctd\u003eYes\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eMaintenance Requirements\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eMaintenance-Free\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eMaintenance-Free\u003c\/td\u003e \u003ctd\u003eMaintenance-Free\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003chr\u003e \u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQs)\u003c\/strong\u003e\u003c\/h3\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eQ1: What applications require a bronze circulator like the E7.2B?\u003c\/strong\u003e\u003cbr\u003e This bronze pump is essential for domestic potable water systems, coastal buildings with salt-laden air, marine applications, swimming pool systems, and facilities with aggressive water chemistry where cast iron pumps would corrode and contaminate the system.\u003c\/p\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eQ2: Is this pump suitable for both heating and domestic water applications?\u003c\/strong\u003e\u003cbr\u003e While its bronze construction makes it perfect for domestic water, it can also be used in heating systems. However, for standard closed-loop hydronic heating applications without corrosion concerns, a cast iron model may be more cost-effective.\u003c\/p\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eQ3: What maintenance does this bronze circulator require?\u003c\/strong\u003e\u003cbr\u003e The pump features a maintenance-free wet-rotor design. The rotor is lubricated and cooled by the system fluid, requiring no periodic lubrication. The primary advantage is the elimination of corrosion-related maintenance concerns that affect cast iron pumps in aggressive environments.\u003c\/p\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eQ4: Can this pump handle high-temperature applications?\u003c\/strong\u003e\u003cbr\u003e Yes, with a maximum fluid temperature of 230°F (110°C), the E7.2B is suitable for most residential and commercial hot water applications, including domestic hot water recirculation and hydronic heating systems.\u003c\/p\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eQ5: How does the corrosion resistance compare to stainless steel models?\u003c\/strong\u003e\u003cbr\u003e Bronze offers excellent corrosion resistance for most water applications, particularly in marine environments, while maintaining compliance with potable water standards. While stainless steel provides broader chemical resistance, bronze is often the preferred traditional material for domestic water systems due to its proven longevity and reliability.\u003c\/p\u003e \u003chr\u003e \u003ch3\u003e\u003cstrong\u003ePros and Cons\u003c\/strong\u003e\u003c\/h3\u003e \u003cdiv class=\"ds-scroll-area _1210dd7 c03cafe9\"\u003e \u003cdiv class=\"ds-scroll-area__gutters\"\u003e \u003cdiv class=\"ds-scroll-area__horizontal-gutter\"\u003e\u003c\/div\u003e \u003cdiv class=\"ds-scroll-area__vertical-gutter\"\u003e\u003c\/div\u003e \u003c\/div\u003e \u003ctable\u003e \u003cthead\u003e \u003ctr\u003e \u003cth\u003ePros\u003c\/th\u003e \u003cth\u003eCons\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\n\u003cstrong\u003eExcellent Corrosion Resistance\u003c\/strong\u003e for long service life\u003c\/td\u003e \u003ctd\u003e\n\u003cstrong\u003eHigher Initial Cost\u003c\/strong\u003e than equivalent cast iron models\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\n\u003cstrong\u003ePotable Water Approved\u003c\/strong\u003e for domestic water systems\u003c\/td\u003e \u003ctd\u003e\n\u003cstrong\u003eLower Flow\/Head Capacity\u003c\/strong\u003e than larger circulators\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\n\u003cstrong\u003eMaintenance-Free Operation\u003c\/strong\u003e with wet-rotor design\u003c\/td\u003e \u003ctd\u003e\n\u003cstrong\u003eSingle-Speed Operation\u003c\/strong\u003e limits performance adjustment\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\n\u003cstrong\u003eCompact Size\u003c\/strong\u003e for easy installation in tight spaces\u003c\/td\u003e \u003ctd\u003e\n\u003cstrong\u003ePremium Price Point\u003c\/strong\u003e for specialized applications\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\n\u003cstrong\u003eQuiet Operation\u003c\/strong\u003e ideal for residential applications\u003c\/td\u003e \u003ctd\u003e\n\u003cstrong\u003eLimited to Specific Applications\u003c\/strong\u003e where bronze is necessary\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\n\u003cstrong\u003eLightweight\u003c\/strong\u003e compared to cast iron circulators\u003c\/td\u003e \u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003chr\u003e \u003ch3\u003e\u003cstrong\u003eConclusion \u0026amp; Ideal Use Cases\u003c\/strong\u003e\u003c\/h3\u003e \u003cp class=\"ds-markdown-paragraph\"\u003eThe Armstrong E7.2B ARMflo Bronze Circulating Pump represents the optimal solution for small to medium applications where material compatibility and corrosion resistance are critical to system longevity. While commanding a premium over standard circulators, its all-bronze construction ensures reliable performance in environments that would quickly degrade conventional pumps.\u003c\/p\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eThis bronze circulator is essential for:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eDomestic Water Systems:\u003c\/strong\u003e Hot water recirculation lines in residential and commercial buildings\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eCoastal Installations:\u003c\/strong\u003e Facilities near oceanfront or saltwater environments\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eMarine Applications:\u003c\/strong\u003e Boat water systems and marine installations\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eLaboratory Settings:\u003c\/strong\u003e Where water purity and material compatibility are critical\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eReplacement Applications:\u003c\/strong\u003e Updating older systems where iron contamination is a concern\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003cp class=\"ds-markdown-paragraph\"\u003eFor larger domestic water applications, consider the \u003cstrong\u003e[Armstrong E24 Series Bronze Circulators]\u003c\/strong\u003e, while for standard hydronic heating in non-corrosive environments, cast iron circulators offer better value. The E7.2B fills a critical niche for small-scale applications requiring the superior corrosion resistance of bronze construction.\u003c\/p\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eContact our plumbing and HVAC specialists today to determine if your application requires bronze construction and for assistance in selecting the right pump for your specific system requirements.\u003c\/strong\u003e\u003c\/p\u003e","brand":"TITANPARTHUB","offers":[{"title":"Default Title","offer_id":52160965443815,"sku":null,"price":773.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/7806\/3335\/files\/b26077f6-182202-644-Armstrong-E7.2B-ARMflo.webp?v=1780566424","url":"https:\/\/titanparthub.com\/products\/armstrong-e7-2b-armflo-bronze-circulating-pump-all-bronze-construction","provider":"TITANPARTHUB","version":"1.0","type":"link"}