{"id":1063,"date":"2022-04-29T15:01:15","date_gmt":"2022-04-29T15:01:15","guid":{"rendered":"http:\/\/bldcpump-local.local\/brushless-dc-pump-definitive-guide\/"},"modified":"2026-05-07T08:53:10","modified_gmt":"2026-05-07T08:53:10","slug":"brushless-dc-pump-definitive-guide","status":"publish","type":"page","link":"https:\/\/www.bldcpump.com\/ru\/\u0431\u0435\u0441\u0449\u0435\u0442\u043e\u0447\u043d\u044b\u0439-\u043d\u0430\u0441\u043e\u0441-\u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e-\u0442\u043e\u043a\u0430-\u043f\/","title":{"rendered":"All about Brushless DC Pump &#8211; A Definitive Guide"},"content":{"rendered":"\n<main>\n\n  <!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n       SECTION 1 -- PAGE HERO BANNER\n  \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n  <section aria-label=\"Page hero\" style=\"background:linear-gradient(135deg,#062A42 0%,#0B5E8F 60%,#1CA0C4 100%);position:relative;overflow:hidden;padding:72px 56px;\">\n    <div class=\"grid-bg-dark\" style=\"position:absolute;inset:0;opacity:0.7;\" aria-hidden=\"true\"><\/div>\n    <div style=\"position:absolute;top:-100px;right:-80px;width:700px;height:700px;background:radial-gradient(circle at 50% 50%,rgba(91,196,222,.18),transparent 65%);pointer-events:none;\" aria-hidden=\"true\"><\/div>\n\n    <div style=\"max-width:1140px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;position:relative;z-index:1;\">\n\n      <!-- Left: kicker + H1 + breadcrumb + lead -->\n      <div style=\"flex:1;min-width:280px;\">\n\n        <!-- Kicker -->\n        <div class=\"kicker\" style=\"color:#5BC4DE;margin-bottom:16px;\">\u25c6 DEFINITIVE GUIDE \u00b7 BLDC PUMPS<\/div>\n\n        <!-- H1 -->\n        <h1 style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:clamp(32px,5vw,60px);font-weight:700;color:#ffffff;letter-spacing:-0.03em;line-height:1.05;margin:0 0 20px;\">\n          All about Brushless DC Pump<br\/><span style=\"color:#5BC4DE;\">A Definitive Guide<\/span>\n        <\/h1>\n\n        <!-- Breadcrumb -->\n        <nav aria-label=\"Breadcrumb\" style=\"margin-bottom:20px;\">\n          <ol style=\"list-style:none;padding:0;margin:0;display:inline-flex;align-items:center;gap:8px;flex-wrap:wrap;\">\n            <li>\n              <a href=\"\/\" style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:13px;color:rgba(255,255,255,.75);text-decoration:none;transition:color .2s;\" onmouseover=\"this.style.color='#5BC4DE'\" onmouseout=\"this.style.color='rgba(255,255,255,.75)'\">Home<\/a>\n            <\/li>\n            <li aria-hidden=\"true\" style=\"color:rgba(255,255,255,.45);font-size:13px;\">\n              <svg width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\"><path d=\"M4 2l4 4-4 4\" stroke=\"currentColor\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/><\/svg>\n            <\/li>\n            <li>\n              <a href=\"\/blog\/\" style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:13px;color:rgba(255,255,255,.75);text-decoration:none;transition:color .2s;\" onmouseover=\"this.style.color='#5BC4DE'\" onmouseout=\"this.style.color='rgba(255,255,255,.75)'\">Blog<\/a>\n            <\/li>\n            <li aria-hidden=\"true\" style=\"color:rgba(255,255,255,.45);font-size:13px;\">\n              <svg width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\"><path d=\"M4 2l4 4-4 4\" stroke=\"currentColor\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/><\/svg>\n            <\/li>\n            <li aria-current=\"page\" style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:13px;color:rgba(255,255,255,.5);\">All about Brushless DC Pump<\/li>\n          <\/ol>\n        <\/nav>\n\n        <!-- Lead intro -->\n        <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:rgba(255,255,255,.8);line-height:1.65;max-width:620px;margin:0;\">\n          This article lists some important concepts of brushless DC pumps. At the end of the article, we use an <a href=\"#section-infographic\" style=\"color:#5BC4DE;text-decoration:underline;text-underline-offset:3px;transition:color .2s;\" onmouseover=\"this.style.color='#ffffff'\" onmouseout=\"this.style.color='#5BC4DE'\">infographic<\/a> to give you a quick idea of how some of its confusing concepts relate to each other.\n        <\/p>\n      <\/div>\n\n      <!-- Right: Ask A Quote button -->\n      <div style=\"flex-shrink:0;\">\n        <a href=\"#quick-quote\" class=\"btn-primary\" style=\"font-size:16px;padding:18px 32px;\">\n          Ask A Quote\n          <svg width=\"16\" height=\"16\" viewBox=\"0 0 16 16\" fill=\"none\" aria-hidden=\"true\"><path d=\"M3 8h10M9 4l4 4-4 4\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/><\/svg>\n        <\/a>\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n  <!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n       SECTION 2 -- ARTICLE BODY\n  \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n  <section aria-label=\"Article body\" style=\"background:#F6F8FA;padding:64px 24px 80px;\">\n    <div style=\"max-width:800px;margin:0 auto;\">\n\n      <!-- \u2500\u2500 Sub-block A: Table of Contents \u2500\u2500 -->\n      <details open style=\"background:#ffffff;border:1px solid #E3E8EE;border-radius:8px;margin-bottom:48px;overflow:hidden;box-shadow:0 1px 2px rgba(6,42,66,.06);\">\n        <summary style=\"display:flex;align-items:center;justify-content:space-between;padding:14px 20px;cursor:pointer;list-style:none;user-select:none;background:#F6F8FA;border-bottom:1px solid #E3E8EE;\">\n          <span style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:14px;font-weight:700;color:#062A42;letter-spacing:-0.01em;\">Contents<\/span>\n          <span aria-hidden=\"true\" style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:12px;color:#6B7A88;border:1px solid #E3E8EE;border-radius:4px;padding:2px 8px;background:#fff;\">[ \u2212 ]<\/span>\n        <\/summary>\n        <nav aria-label=\"Table of contents\" style=\"padding:20px 24px;\">\n          <ol style=\"margin:0;padding:0 0 0 20px;display:flex;flex-direction:column;gap:8px;list-style:none;\">\n            <li style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:14px;\">\n              <a href=\"#section-why-brushless\" style=\"color:#1CA0C4;text-decoration:none;\" onmouseover=\"this.style.textDecoration='underline'\" onmouseout=\"this.style.textDecoration='none'\">1. Why called brushless DC pump?<\/a>\n              <ol style=\"margin:6px 0 0;padding-left:20px;display:flex;flex-direction:column;gap:5px;list-style:none;\">\n                <li style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:13px;\"><a href=\"#section-brushed-pros-cons\" style=\"color:#1CA0C4;text-decoration:none;\" onmouseover=\"this.style.textDecoration='underline'\" onmouseout=\"this.style.textDecoration='none'\">1.1 Pros and Cons of brushed DC Motor<\/a><\/li>\n                <li style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:13px;\"><a href=\"#section-brushless-pros\" style=\"color:#1CA0C4;text-decoration:none;\" onmouseover=\"this.style.textDecoration='underline'\" onmouseout=\"this.style.textDecoration='none'\">1.2 Pros of Brushless DC Motor<\/a><\/li>\n              <\/ol>\n            <\/li>\n            <li style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:14px;\">\n              <a href=\"#section-structure\" style=\"color:#1CA0C4;text-decoration:none;\" onmouseover=\"this.style.textDecoration='underline'\" onmouseout=\"this.style.textDecoration='none'\">2. Structure Innovation based on brushless DC motors<\/a>\n            <\/li>\n            <li style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:14px;\">\n              <a href=\"#section-2phase-3phase\" style=\"color:#1CA0C4;text-decoration:none;\" onmouseover=\"this.style.textDecoration='underline'\" onmouseout=\"this.style.textDecoration='none'\">3. Difference between 2-phase and 3-phase<\/a>\n            <\/li>\n            <li style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:14px;\">\n              <a href=\"#section-sine-wave\" style=\"color:#1CA0C4;text-decoration:none;\" onmouseover=\"this.style.textDecoration='underline'\" onmouseout=\"this.style.textDecoration='none'\">4. Sine Wave Drive Control - for noise reduction<\/a>\n            <\/li>\n            <li style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:14px;\">\n              <a href=\"#section-infographic\" style=\"color:#1CA0C4;text-decoration:none;\" onmouseover=\"this.style.textDecoration='underline'\" onmouseout=\"this.style.textDecoration='none'\">5. Brushless DC Pump Relationship Infographic<\/a>\n            <\/li>\n          <\/ol>\n        <\/nav>\n      <\/details>\n\n      <!-- \u2500\u2500 Sub-block B: Section 1 \u2500\u2500 -->\n      <h2 id=\"section-why-brushless\" style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:26px;font-weight:700;color:#062A42;letter-spacing:-0.02em;line-height:1.2;margin:0 0 16px;padding-top:8px;border-top:2px solid #E3E8EE;\">\n        1. Why called brushless DC pump?\n      <\/h2>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 32px;\">\n        The brushless DC pump was initially named <strong>because of the use of a brushless DC motor<\/strong>. So let's start with the DC motor development.\n      <\/p>\n\n      <h3 id=\"section-brushed-pros-cons\" style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:19px;font-weight:700;color:#062A42;letter-spacing:-0.01em;margin:0 0 14px;\">1.1 Pros and Cons of brushed DC Motor<\/h3>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        The early DC motors were commutated by commutators and brushes, so it was called brushed DC motors as it was known to the public. It has the following pros and cons.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 10px;\">\n        <strong>Pros:<\/strong>\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        Compared to the AC motor, the DC motor has excellent speed control performance, a wide speed regulation range, large torque, good low-speed performance, stable operation performance, and high efficiency.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 10px;\">\n        <strong>Cons:<\/strong>\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 16px;\">\n        However, since conventional DC motors are commutated through brushes and commutator contacts, there are several drawbacks: <strong>Sparks, Mechanical Wear, Electromagnetic Interference, Loud noise, Short Working Lifespan<\/strong>...\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 32px;\">\n        Due to the complex structure, the pump's reliability is poor, easy to be failure, and frequent maintenance is required. In a complex system, it is an important source of the system's unreliability, so its application is limited.\n      <\/p>\n\n      <h3 id=\"section-brushless-pros\" style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:19px;font-weight:700;color:#062A42;letter-spacing:-0.01em;margin:0 0 14px;\">1.2 Pros of Brushless DC Motor<\/h3>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        The invention of the brushless DC motor benefited from the development of electronic technology, which used transistor commutation circuits instead of brushes and commutators.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 28px;\">\n        The structure of the brushless DC motor is similar to that of the AC permanent magnet synchronous motor, with coil windings on the stator and permanent magnets on the rotor.\n      <\/p>\n\n      <!-- 2-col image comparison -->\n      <div style=\"display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:28px;\">\n        <figure style=\"margin:0;text-align:center;\">\n          <div style=\"border:1px solid #E3E8EE;border-radius:8px;overflow:hidden;background:#ffffff;\">\n            <img decoding=\"async\"\n              src=\"\/wp-content\/uploads\/2015\/05\/brushed_motor_4.webp\"\n              alt=\"Diagram of a brushed DC motor showing N\/S magnets, rotor coils, and brushes with positive and negative terminals\"\n              sizes=\"(max-width: 768px) calc((100vw - 68px) \/ 2), 380px\"\n              loading=\"lazy\"\n              style=\"width:100%;height:auto;display:block;\"\n            \/>\n          <\/div>\n          <figcaption style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:13px;color:#6B7A88;margin-top:10px;font-style:italic;\">Brushed Motor<\/figcaption>\n        <\/figure>\n        <figure style=\"margin:0;text-align:center;\">\n          <div style=\"border:1px solid #E3E8EE;border-radius:8px;overflow:hidden;background:#ffffff;\">\n            <img decoding=\"async\"\n              src=\"\/wp-content\/uploads\/2022\/04\/brushless-dc-motor-working-principle-diagram.webp\"\n              alt=\"Diagram of a brushless DC motor showing the rotor with permanent magnets and stator with windings, labeled rotor and stator\"\n              sizes=\"(max-width: 768px) calc((100vw - 68px) \/ 2), 380px\"\n              loading=\"lazy\"\n              style=\"width:100%;height:auto;display:block;\"\n            \/>\n          <\/div>\n          <figcaption style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:13px;color:#6B7A88;margin-top:10px;font-style:italic;\">Brushless Motor<\/figcaption>\n        <\/figure>\n      <\/div>\n\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 12px;\">\n        <strong>Pros:<\/strong>\n      <\/p>\n      <ul style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 48px;padding-left:24px;\">\n        <li style=\"margin-bottom:8px;\">Inherits all the advantages of brushed DC motors.<\/li>\n        <li>No Sparks, No Mechanical Wear, High Reliability, Long Lifespan, Maintenance-free.<\/li>\n      <\/ul>\n\n      <!-- \u2500\u2500 Sub-block C: Section 2 \u2500\u2500 -->\n      <h2 id=\"section-structure\" style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:26px;font-weight:700;color:#062A42;letter-spacing:-0.02em;line-height:1.2;margin:0 0 16px;padding-top:32px;border-top:2px solid #E3E8EE;\">\n        2. Structure Innovation based on brushless DC motors\n      <\/h2>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 28px;\">\n        The shaft seal failure and leakage is the most common reason for pump being burned. To completely solve this problem and prolong the service life of the water pump, the brushless DC pump has innovated the structure of the pump.\n      <\/p>\n\n      <div class=\"corner-marks\" style=\"border-radius:8px;overflow:hidden;border:1px solid #E3E8EE;background:#F2FAFC;padding:8px;margin:0 0 12px;\">\n        <span class=\"cm-br\"><\/span>\n        <span class=\"cm-bl\"><\/span>\n        <figure class=\"bldc-hotspot-figure\" data-bldc-hotspot style=\"margin:0;max-width:none;\">\n          <img decoding=\"async\"\n            src=\"\/wp-content\/uploads\/2021\/07\/Structure-dcwaterpump.com_.webp\"\n            alt=\"Cross-section of BLDC pump showing internal components \u2014 interactive hotspots reveal Rotor Fan, Ceramic Shaft, Isolation Layer, and Stator Coil\"\n            width=\"800\"\n            height=\"533\"\n            loading=\"lazy\"\n            sizes=\"auto, (max-width: 848px) calc(100vw - 48px), 800px\"\n          \/>\n          <button type=\"button\" class=\"bldc-hotspot-dot\" data-hotspot-x=\"47\" data-hotspot-y=\"49\" aria-label=\"Rotor Fan\">\n            <span class=\"bldc-hotspot-tooltip\"><strong>Rotor Fan<\/strong> \u2014 driven by the magnetic field generated by the coil and works with the liquid. Completely isolated from the stator coil and circuit board.<\/span>\n          <\/button>\n          <button type=\"button\" class=\"bldc-hotspot-dot\" data-hotspot-x=\"66\" data-hotspot-y=\"34\" aria-label=\"Ceramic Shaft\">\n            <span class=\"bldc-hotspot-tooltip\"><strong>Ceramic Shaft<\/strong> \u2014 quality zirconia ceramic shaft helps reduce rotation resistance and guarantees a long lifespan of the pumps.<\/span>\n          <\/button>\n          <button type=\"button\" class=\"bldc-hotspot-dot\" data-hotspot-x=\"73\" data-hotspot-y=\"29\" aria-label=\"Isolation Layer\">\n            <span class=\"bldc-hotspot-tooltip\"><strong>Isolation Layer<\/strong> \u2014 part of the pump body that isolates the stator coil and circuit board from the rotor fan and liquid, making the pump completely waterproof.<\/span>\n          <\/button>\n          <button type=\"button\" class=\"bldc-hotspot-dot\" data-hotspot-x=\"90\" data-hotspot-y=\"16\" aria-label=\"Stator Coil\">\n            <span class=\"bldc-hotspot-tooltip\"><strong>Stator Coil<\/strong> \u2014 generates a magnetic field to make the rotor running.<\/span>\n          <\/button>\n        <\/figure>\n      <\/div>\n      <div class=\"annot-line\" style=\"margin:0 0 28px;\">STRUCTURE OF BRUSHLESS DC PUMP \u00b7 CLICK \/ HOVER DOTS FOR PARTS<\/div>\n\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        As you can see from the BLDC PUMP structure diagram above, <strong>the stator coil and circuit board are entirely isolated from the liquid and rotor by the isolation layer<\/strong>. Unlike the dynamic seal of the o-ring, this is a complete static seal. It guaranteed absolutely no leakage.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        In addition to preventing liquid leakage, this structure also brings another benefit: <strong>good heat dissipation<\/strong>, which allows the pump to have a longer service lifespan. <strong>The pumping liquid medium cools the high-speed operation rotor, and the cooling efficiency is much better<\/strong> than the airflow cooling inside the traditional water pump.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 48px;\">\n        Because of this unique structure of the brushless DC pump, it is often called another name: <strong>magnetic drive pump<\/strong>.\n      <\/p>\n\n      <!-- \u2500\u2500 Sub-block D: Section 3 \u2500\u2500 -->\n      <h2 id=\"section-2phase-3phase\" style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:26px;font-weight:700;color:#062A42;letter-spacing:-0.02em;line-height:1.2;margin:0 0 16px;padding-top:32px;border-top:2px solid #E3E8EE;\">\n        3. Difference between 2-phase and 3-phase\n      <\/h2>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        The working principle of the brushless DC water pump is similar to that of the AC water pump. That is, the rotor is driven to rotate by the changing magnetic fields generated by the paired winding coils on the stator. But please note that, unlike AC water pumps, <strong>brushless DC water pumps use low voltage DC power sources<\/strong> instead of 110V or 220V AC power.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        The 2-phase brushless DC pump has two pairs of magnetic fields and a 4-slots stator, while the 3-phase brushless DC pump has three pairs of magnetic fields and a 6-slots stator.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        The 2-phase brushless DC pump <strong>usually has a lower cost than the 3-phase brushless DC pump<\/strong>. This is because it requires the circuit inside of the pump body to place the Hall sensor to detect the position of the rotor.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 28px;\">\n        To ensure that electronic components are not burned, we usually require that the temperature of the medium being pumped cannot exceed 60 degrees Celsius. At the same time, the pump's power should not be too large (because the winding coil itself will generate a lot of heat when the pump is working).\n      <\/p>\n\n      <figure style=\"margin:0 0 28px;\">\n        <img decoding=\"async\"\n          src=\"\/wp-content\/uploads\/2022\/05\/3-phase-vs-2-phase-brushless-DC-pump.webp\"\n          alt=\"Side-by-side comparison of 2-phase and 3-phase brushless DC pump components: Hall sensor circuit board placed inside the pump body for 2-phase, sensorless control circuit module placed outside for 3-phase, plus 4-slot and 6-slot stator winding diagrams\"\n          sizes=\"(max-width: 848px) calc(100vw - 48px), 800px\"\n          loading=\"lazy\"\n          style=\"width:100%;height:auto;border-radius:8px;border:1px solid #E3E8EE;display:block;\"\n        \/>\n        <figcaption style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:13px;color:#6B7A88;margin-top:10px;font-style:italic;text-align:center;\">Comparison of 2-phase and 3-phase brushless DC pump &mdash; sensor placement and stator slot count<\/figcaption>\n      <\/figure>\n\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        The 3-phase brushless DC pump use <strong>MCU control<\/strong> and intelligent commutation position detection in place of the Hall sensor. You can place the circuit with all electronic components in a control box outside of the pump body according to your needs.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        Compared to a 2-phase brushless DC pump, <strong>a 3-phase brushless DC pump allow us significantly increase the pump's rated power to improve the pump's performance<\/strong>.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        At the same time, the 3-phase brushless DC pump can work in a <strong>higher temperature environment<\/strong>.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        In addition, due to the use of MCU, <strong>we can add many program functions<\/strong> to the pump, such as Reverse protection, stuck protection, over-current protection, manual speed control, gifted program, and so on.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 48px;\">\n        The 3-phase brushless DC pump is a milestone upgrade, to sum up the above.\n      <\/p>\n\n      <!-- \u2500\u2500 Sub-block E: Section 4 \u2500\u2500 -->\n      <h2 id=\"section-sine-wave\" style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:26px;font-weight:700;color:#062A42;letter-spacing:-0.02em;line-height:1.2;margin:0 0 16px;padding-top:32px;border-top:2px solid #E3E8EE;\">\n        4. Sine Wave Drive Control - for noise reduction\n      <\/h2>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        Compared with the AC water pump and the traditional DC water pump, the noise of the brushless DC water pump is very low, about 40dB or less. However, in some particular environments, such as the plumbing mattress used in the bedroom, the circulation system of the fish tank, the cooling circulation system of the CPU, etc., our requirements for noise will be more critical.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        To further reduce noise, we have adopted the sine wave drive control technology instead of square wave drive in some product models.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        The principle of sine wave drive is as follows: the pump's control system obtains the precise position of the rotor by the 3-phase sensorless control technology. <strong>It uses the complex control circuit to provide the changing phase current matched with each opposite electromotive force<\/strong>. Ideally, using sine-wave drive control technology can achieve a <strong>constant pump torque<\/strong>.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        As a result, compared with square wave drive, sine wave drive can achieve some advantages, including <strong>low torque fluctuation, smooth operation, super low noise<\/strong>, etc.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 48px;\">\n        Because of the high cost, the sine wave drive control technology was mainly used in the military and in a few high-required applications. However, in recent years, due to the price reduction of high-speed MCU and DSP, it has received more and more attention.\n      <\/p>\n\n      <!-- \u2500\u2500 Sub-block F: Section 5 -- Infographic \u2500\u2500 -->\n      <h2 id=\"section-infographic\" style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:26px;font-weight:700;color:#062A42;letter-spacing:-0.02em;line-height:1.2;margin:0 0 16px;padding-top:32px;border-top:2px solid #E3E8EE;\">\n        5. Brushless DC Pump Relationship Infographic\n      <\/h2>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        With the advancement of various technologies and the continuous innovation of materials and processes, the performance of brushless DC pumps in all aspects has become more and more excellent. It has gradually become widely used in more and more fields in the past few decades.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 20px;\">\n        It is the product of the combination of modern electronic technology (including power electronics, microelectronics technology), control theory, motor technology, fluid mechanics, and other disciplines.\n      <\/p>\n      <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:#0F2533;line-height:1.75;margin:0 0 28px;\">\n        Frankly, it's not easy to sort out some of its concepts. So we wrote this article hoping it will help. The following infographic will give you a quick idea of how some of its confusing concepts relate to each other. If helpful, please enjoy and share.\n      <\/p>\n\n      <figure style=\"margin:0;\">\n        <img decoding=\"async\"\n          src=\"\/wp-content\/uploads\/2022\/04\/Brushless-DC-Pump-Relationship-Infographic.webp\"\n          alt=\"Circular Venn-diagram-style infographic titled BRUSHLESS DC PUMP RELATIONSHIP showing nested concentric circles labeled DC Water Pump, Brushless DC Pump, 3-phase Brushless DC Pump, and Sine Wave Drive Control Brushless DC Pump with descriptive annotations\"\n          sizes=\"(max-width: 848px) calc(100vw - 48px), 800px\"\n          loading=\"lazy\"\n          style=\"width:100%;height:auto;border-radius:8px;border:1px solid #E3E8EE;display:block;\"\n        \/>\n        <figcaption style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:13px;color:#6B7A88;margin-top:10px;font-style:italic;text-align:center;\">Brushless DC Pump Relationship Infographic<\/figcaption>\n      <\/figure>\n\n    <\/div>\n  <\/section>\n\n\n  <!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n       SECTION 10 -- CONTACT CTA BAR\n  \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n  <section aria-label=\"Contact and reliability statement\" style=\"background:#0B5E8F;position:relative;overflow:hidden;border-bottom:4px solid #1CA0C4;padding:80px 56px;\">\n    <div class=\"grid-bg-dark\" style=\"position:absolute;inset:0;opacity:0.65;\" aria-hidden=\"true\"><\/div>\n    <div style=\"position:absolute;top:0;left:0;width:700px;height:500px;background:radial-gradient(circle at 25% 35%,rgba(91,196,222,.2),transparent 60%);pointer-events:none;\" aria-hidden=\"true\"><\/div>\n    <div style=\"position:absolute;bottom:0;right:0;width:500px;height:400px;background:radial-gradient(circle at 75% 75%,rgba(28,160,196,.14),transparent 60%);pointer-events:none;\" aria-hidden=\"true\"><\/div>\n\n    <div style=\"max-width:1140px;margin:0 auto;position:relative;z-index:1;\">\n      <div style=\"display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;\">\n\n        <!-- Left: copy (kicker + h2 + p) -->\n        <div>\n          <div style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:11px;font-weight:500;letter-spacing:0.18em;text-transform:uppercase;color:#5BC4DE;margin-bottom:20px;\">\u25c6 BUILT FOR THE LONG RUN<\/div>\n          <h2 style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:clamp(28px,3.5vw,44px);font-weight:600;color:#ffffff;letter-spacing:-0.025em;line-height:1.1;margin:0 0 20px;\">\n            BLDC PUMP: Powering Your Business 24\/7 with Unmatched Durability and Reliability.\n          <\/h2>\n          <p style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;color:rgba(255,255,255,.7);line-height:1.7;margin:0;\">\n            Say goodbye to business woes caused by low-quality components. 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Your information will only be used to respond to your inquiry and will never be shared with third parties.\n          <\/p>\n        <\/div>\n\n      <\/div>\n    <\/div>\n  <\/section>\n\n\n<\/main>\n","protected":false},"excerpt":{"rendered":"<p>This article lists some important concepts of brushless DC pumps and uses an infographic to give you a quick idea of how some of its confusing concepts relate to each other. <\/p>","protected":false},"author":1,"featured_media":576,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Brushless DC Pump: A Definitive Guide | BLDC PUMP","_seopress_titles_desc":"Complete guide to brushless DC pumps \u2014 structure, working principle, advantages, and selection. Interactive cross-section, comparison vs brushed and AC pumps.","_seopress_robots_index":"","_seopress_analysis_target_kw":"","_zeroy_edited":true,"_zeroy_last_edited":"2026-05-07 08:38:38","footnotes":""},"class_list":["post-1063","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.bldcpump.com\/ru\/wp-json\/wp\/v2\/pages\/1063","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bldcpump.com\/ru\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.bldcpump.com\/ru\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.bldcpump.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bldcpump.com\/ru\/wp-json\/wp\/v2\/comments?post=1063"}],"version-history":[{"count":3,"href":"https:\/\/www.bldcpump.com\/ru\/wp-json\/wp\/v2\/pages\/1063\/revisions"}],"predecessor-version":[{"id":1334,"href":"https:\/\/www.bldcpump.com\/ru\/wp-json\/wp\/v2\/pages\/1063\/revisions\/1334"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bldcpump.com\/ru\/wp-json\/wp\/v2\/media\/576"}],"wp:attachment":[{"href":"https:\/\/www.bldcpump.com\/ru\/wp-json\/wp\/v2\/media?parent=1063"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}