{"product_id":"armstrong-s-55-1-ab-all-bronze-pump-1-2hp-106284mf-133-specs-review","title":"Armstrong S-55-1 AB All Bronze Pump 1\/2HP | 106284MF-133 | Specs \u0026 Review","description":"\u003ch1\u003e\u003cstrong\u003eArmstrong S-55-1 AB All Bronze 1\/2HP Pump | Ultimate Product Guide\u003c\/strong\u003e\u003c\/h1\u003e \u003cp class=\"ds-markdown-paragraph\"\u003eThe Armstrong S-55-1 AB, part number \u003cstrong\u003e106284MF-133\u003c\/strong\u003e, is a versatile and durable in-line centrifugal circulator renowned for its reliability in critical applications. As part of the legendary \u003cstrong\u003eArmstrong Series S \u0026amp; H\u003c\/strong\u003e line, this \u003cstrong\u003eall-bronze\u003c\/strong\u003e constructed pump is specifically engineered for use in \u003cstrong\u003epotable (domestic) water systems\u003c\/strong\u003e, making it a safe and corrosion-resistant choice for homeowners and HVAC professionals alike.\u003c\/p\u003e \u003cp class=\"ds-markdown-paragraph\"\u003ePowered by a dependable \u003cstrong\u003e1\/2 HP motor\u003c\/strong\u003e, this pump is designed to handle a wide range of duties, from circulating hot and chilled water in hydronic heating and cooling systems to boosting pressure in domestic water lines and managing multi-zone setups. Its trusted design, proven over decades of service in the field, offers a perfect blend of performance, longevity, and material safety.\u003c\/p\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003eDetailed Technical Specifications\u003c\/strong\u003e\u003c\/h2\u003e \u003cdiv class=\"markdown-table-wrapper\"\u003e \u003ctable\u003e \u003cthead\u003e \u003ctr\u003e \u003cth\u003eFeature\u003c\/th\u003e \u003cth\u003eSpecification\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eArmstrong Pumps\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eSeries S \u0026amp; H\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e106284MF-133\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eS-55-1 AB\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003ePump Type\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eIn-Line Centrifugal Circulator\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eHorsepower (HP)\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e1\/2 HP\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eAll Bronze\u003c\/strong\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eConnection Type\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eFlanged (Standard S-55)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eMotor Type\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eStandard PSC (Permanent Split Capacitor)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e115V \/ 120V (Standard Residential)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003ePhase\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eSingle Phase\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eService\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003ePotable Water, Hydronic Heating\/Cooling, Industrial\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e*Note: For precise performance specs (GPM, Head), always consult the official Armstrong Series S performance curve for the S-55-1 AB model.*\u003c\/p\u003e \u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eAll-Bronze Construction:\u003c\/strong\u003e Provides excellent corrosion resistance and is \u003cstrong\u003esafe for potable water systems\u003c\/strong\u003e.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eProven Reliability:\u003c\/strong\u003e A time-tested design trusted by HVAC professionals for decades.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eVersatile Applications:\u003c\/strong\u003e Suitable for closed-loop hydronics and open-loop domestic water.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eFlanged Connections:\u003c\/strong\u003e Ensure a strong, leak-free seal and are standard for this pump size.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eMechanical Seal:\u003c\/strong\u003e Designed for long life and minimal maintenance.\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003eArmstrong S-55-1 AB vs. Other Pump Types: Comparison Table\u003c\/strong\u003e\u003c\/h2\u003e \u003cp class=\"ds-markdown-paragraph\"\u003eThis table highlights the ideal use cases for this specific pump.\u003c\/p\u003e \u003cdiv class=\"markdown-table-wrapper\"\u003e \u003ctable\u003e \u003cthead\u003e \u003ctr\u003e \u003cth\u003eFeature\u003c\/th\u003e \u003cth\u003eArmstrong S-55-1 AB (All Bronze)\u003c\/th\u003e \u003cth\u003eCast Iron Circulator (e.g., Taco 1900)\u003c\/th\u003e \u003cth\u003eHigh-Efficiency ECM Circulator\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003ePrimary Use\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003ePotable Water, Hydronics\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eClosed-Loop Hydronics Only\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eClosed-Loop Hydronics, DHW\u003c\/strong\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eAll Bronze (Potable Safe)\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eCast Iron (Not Potable Safe)\u003c\/td\u003e \u003ctd\u003eBronze\/Composite (Often Potable Safe)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eEfficiency\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eStandard Efficiency\u003c\/td\u003e \u003ctd\u003eStandard Efficiency\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eVery High Efficiency\u003c\/strong\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eExcellent, Corrosion-Resistant\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eExcellent (in closed loops)\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eInitial Cost\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eModerate\u003c\/td\u003e \u003ctd\u003eModerate\u003c\/td\u003e \u003ctd\u003eHigh\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eBest For\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eDomestic Water Boosting, Well Tanks\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eCommercial Boiler Systems\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eEnergy-Conscious Hydronic Systems\u003c\/strong\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h2\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eQ1: Is this pump safe for drinking water?\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eA: Yes, absolutely.\u003c\/strong\u003e The key feature of the “AB” (All Bronze) model is its construction from corrosion-resistant bronze, which is fully safe and approved for use in potable (drinking) water systems. This distinguishes it from cast iron pumps, which are not.\u003c\/p\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eQ2: What is the difference between “bronze-fitted” and “all bronze”?\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eA:\u003c\/strong\u003e \u003cstrong\u003e“Bronze-fitted”\u003c\/strong\u003e typically means the pump has a cast iron body with key wear components (like the impeller) made of bronze. \u003cstrong\u003e“All Bronze”\u003c\/strong\u003e means the entire pump wet-end (casing, impeller, etc.) is constructed from bronze, making it suitable for potable water.\u003c\/p\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eQ3: What are typical applications for this pump?\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eA:\u003c\/strong\u003e This pump is incredibly versatile. Common uses include:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eDomestic Water Pressure Boosting\u003c\/strong\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eHot Water Recirculation Loops\u003c\/strong\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eHydronic (Boiler-Based) Heating Systems\u003c\/strong\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eChilled Water Cooling Systems\u003c\/strong\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eSupply from Storage Tanks\u003c\/strong\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eIndustrial Water Transfer\u003c\/strong\u003e\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eQ4: Does it come with a built-in flow control or check valve?\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eA:\u003c\/strong\u003e No, the Armstrong Series S circulators are standard pumps. Flow control valves, check valves, and isolation flanges are typically purchased as separate accessories to create a complete pump package.\u003c\/p\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eQ5: Is the motor serviceable?\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eA:\u003c\/strong\u003e Yes, these pumps are designed for serviceability. The motor is a separate component that can be replaced if it fails. The mechanical seal can also be replaced to address leaks.\u003c\/p\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eQ6: What is the warranty?\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eA:\u003c\/strong\u003e Armstrong typically offers a 1-year warranty on their circulators. Always confirm the specific warranty terms with your supplier or Armstrong’s official policy.\u003c\/p\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003ePros and Cons\u003c\/strong\u003e\u003c\/h2\u003e \u003ch3\u003e\u003cstrong\u003ePros:\u003c\/strong\u003e\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003ePotable Water Safe:\u003c\/strong\u003e The all-bronze construction is its biggest advantage, allowing for safe use in domestic water applications.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eProven Durability:\u003c\/strong\u003e A simple, robust, and time-tested design that HVAC professionals know and trust.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eCorrosion Resistance:\u003c\/strong\u003e Excellent resistance to corrosion in both open and closed-loop systems.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eVersatility:\u003c\/strong\u003e Can be used across a wide range of applications, from heating to domestic water.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eFlanged Connections:\u003c\/strong\u003e Provide a more robust and reliable connection than threaded unions on larger pumps.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eBrand Reputation:\u003c\/strong\u003e Armstrong is a respected and established name in commercial and residential pumping.\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003e\u003cstrong\u003eCons:\u003c\/strong\u003e\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eStandard Efficiency:\u003c\/strong\u003e Lacks the advanced ECM motor technology of newer pumps, resulting in higher energy consumption over time.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eManual Operation:\u003c\/strong\u003e Does not have built-in variable speed or smart controls; it runs at a fixed speed when powered on.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e The all-bronze construction makes it heavier than equivalent composite-bodied pumps.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eNoise Level:\u003c\/strong\u003e Will be louder than modern, high-efficiency, variable-speed circulators.\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003eConclusion \u0026amp; Best Applications\u003c\/strong\u003e\u003c\/h2\u003e \u003cp class=\"ds-markdown-paragraph\"\u003eThe \u003cstrong\u003eArmstrong S-55-1 AB (106284MF-133)\u003c\/strong\u003e is a classic, no-nonsense workhorse built for reliability and safety. It is the ideal choice for applications where material compatibility and proven performance are more critical than having the latest energy-saving technology.\u003c\/p\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eYou should choose this pump if:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003eYou need a pump for \u003cstrong\u003edomestic drinking water\u003c\/strong\u003e pressure boosting or recirculation.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003eYou are replacing an old circulator in a \u003cstrong\u003epotable water\u003c\/strong\u003e or \u003cstrong\u003ehydronic system\u003c\/strong\u003e and require a durable, direct replacement.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003eYou value a \u003cstrong\u003esimple, reliable, and serviceable\u003c\/strong\u003e design from a trusted manufacturer.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\"\u003eThe application requires the \u003cstrong\u003ecorrosion resistance\u003c\/strong\u003e of all-bronze construction.\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003cp class=\"ds-markdown-paragraph\"\u003eFor contractors and homeowners who need a dependable pump for safe water handling, the Armstrong Series S All Bronze circulator remains a top-tier, trusted choice.\u003c\/p\u003e \u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eDisclaimer:\u003c\/strong\u003e Installation must comply with all local plumbing and electrical codes. For potable water applications, all installed components must be certified for drinking water use. Professional installation is recommended.\u003c\/p\u003e","brand":"TITANPARTHUB","offers":[{"title":"Default Title","offer_id":52160962658535,"sku":null,"price":3128.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/7806\/3335\/files\/a76aafa1-Armstrong-S-55-1-AB.jpg?v=1780566419","url":"https:\/\/titanparthub.com\/products\/armstrong-s-55-1-ab-all-bronze-pump-1-2hp-106284mf-133-specs-review","provider":"TITANPARTHUB","version":"1.0","type":"link"}