{"id":4713,"date":"2026-04-29T09:26:55","date_gmt":"2026-04-29T09:26:55","guid":{"rendered":"https:\/\/bbpmfg.com\/?page_id=4713"},"modified":"2026-04-29T09:57:09","modified_gmt":"2026-04-29T09:57:09","slug":"iso-2858-replacement-finder","status":"publish","type":"page","link":"https:\/\/bbpmfg.com\/es\/centrifugal-pumps\/iso-2858-replacement-finder\/","title":{"rendered":"Buscador de repuesto ISO 2858"},"content":{"rendered":"\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-9eb3f5d\" data-block-id=\"9eb3f5d\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-9eb3f5d-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-fd711c3\" data-v=\"4\" data-block-id=\"fd711c3\"><style>.stk-fd711c3-container{margin-top:30px !important;margin-right:30px !important;margin-bottom:30px !important;margin-left:30px !important;}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-fd711c3-container stk--no-background stk--no-padding\"><div class=\"has-text-align-center stk-block-content stk-inner-blocks stk-fd711c3-inner-blocks\">\n<h1>ISO 2858 Replacement Finder<\/h1>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-828a745\" data-block-id=\"828a745\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-828a745-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-af2a66f\" data-v=\"4\" data-block-id=\"af2a66f\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-af2a66f-container stk--no-background stk--no-padding\"><div class=\"has-text-align-center stk-block-content stk-inner-blocks stk-af2a66f-inner-blocks\"><div class=\"ct-breadcrumbs\" data-source=\"rankmath\" ><nav aria-label=\"breadcrumbs\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Home<\/span><\/p><\/nav><\/div><\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-7780115\" data-block-id=\"7780115\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-7780115-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-d5b5fbb\" data-v=\"4\" data-block-id=\"d5b5fbb\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-d5b5fbb-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-d5b5fbb-inner-blocks\">\n<section id=\"bbp-iso2858-finder-v1\">\n<style>\n  \/* ==========================================================================\n     1. Base Scope and Full-Bleed Layout\n     ========================================================================== *\/\n  #bbp-iso2858-finder-v1 {\n    width: 100% !important;\n    background-color: #f4f7fa !important;\n    padding: 70px 30px !important;\n    box-sizing: border-box !important;\n    font-family: 'Inter', sans-serif !important;\n  }\n\n  #bbp-iso2858-finder-v1 * {\n    box-sizing: border-box !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-container {\n    max-width: 1600px !important;\n    margin: 0 auto !important;\n    display: flex !important;\n    justify-content: center !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-tool-wrapper {\n    width: 100% !important;\n    max-width: 1000px !important;\n    background: #ffffff !important;\n    border: 1px solid #dde2ee !important;\n    border-radius: 12px !important;\n    overflow: hidden !important;\n    box-shadow: 0 15px 35px rgba(0,0,0,0.04) !important;\n  }\n\n  \/* ==========================================================================\n     2. Typography\n     ========================================================================== *\/\n  #bbp-iso2858-finder-v1 h2.bbp-title-h2,\n  #bbp-iso2858-finder-v1 h3.bbp-title-h3,\n  #bbp-iso2858-finder-v1 h4.bbp-title-h4 {\n    font-family: inherit !important;\n    font-weight: 700 !important;\n    margin: 0 !important;\n    padding: 0 !important;\n    line-height: 1.3 !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-tool-header {\n    background: #1848C0 !important;\n    color: #ffffff !important;\n    padding: 35px 40px !important;\n  }\n\n  #bbp-iso2858-finder-v1 h2.bbp-title-h2 {\n    color: #ffffff !important;\n    font-size: 32px !important;\n    margin-bottom: 10px !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-tool-header p {\n    margin: 0 !important;\n    opacity: 0.9 !important;\n    font-size: 16px !important;\n    line-height: 1.5 !important;\n  }\n\n  \/* ==========================================================================\n     3. Tool Body and Inputs\n     ========================================================================== *\/\n  #bbp-iso2858-finder-v1 .bbp-tool-body {\n    padding: 40px !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-form-row {\n    display: grid !important;\n    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)) !important;\n    gap: 20px 24px !important;\n    margin-bottom: 24px !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-field label {\n    display: block !important;\n    font-size: 14.5px !important;\n    font-weight: 600 !important;\n    color: #1e293b !important;\n    margin-bottom: 8px !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-field input,\n  #bbp-iso2858-finder-v1 .bbp-field select {\n    width: 100% !important;\n    height: 48px !important;\n    padding: 0 16px !important;\n    border: 1px solid #cbd5e1 !important;\n    border-radius: 6px !important;\n    font-size: 15px !important;\n    color: #0f172a !important;\n    background: #f8fafc !important;\n    appearance: none !important;\n    font-family: inherit !important;\n    transition: all 0.2s ease !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-field select {\n    background-image: url(\"data:image\/svg+xml,%3Csvg xmlns='http:\/\/www.w3.org\/2000\/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%231848C0'\/%3E%3C\/svg%3E\") !important;\n    background-repeat: no-repeat !important;\n    background-position: right 16px center !important;\n    padding-right: 40px !important;\n    cursor: pointer !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-field input:focus,\n  #bbp-iso2858-finder-v1 .bbp-field select:focus {\n    outline: none !important;\n    border-color: #1848C0 !important;\n    box-shadow: 0 0 0 3px rgba(24, 72, 192, 0.1) !important;\n    background: #ffffff !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-btn-primary {\n    display: block !important;\n    width: 100% !important;\n    height: 54px !important;\n    background: #1848C0 !important;\n    color: #ffffff !important;\n    border: none !important;\n    border-radius: 8px !important;\n    font-size: 16px !important;\n    font-weight: 700 !important;\n    cursor: pointer !important;\n    transition: background 0.2s !important;\n    margin-top: 10px !important;\n    font-family: inherit !important;\n    letter-spacing: 0.5px !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-btn-primary:hover {\n    background: #1238a0 !important;\n  }\n\n  \/* ==========================================================================\n     4. Results and Tables\n     ========================================================================== *\/\n  #bbp-iso2858-finder-v1 .bbp-result-area {\n    display: none;\n    margin-top: 35px !important;\n    padding-top: 35px !important;\n    border-top: 1px dashed #cbd5e1 !important;\n    animation: bbp-iso-fade 0.4s ease forwards !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-result-area.show {\n    display: block !important;\n  }\n\n  @keyframes bbp-iso-fade {\n    from { opacity: 0; transform: translateY(10px); }\n    to { opacity: 1; transform: translateY(0); }\n  }\n\n  #bbp-iso2858-finder-v1 h3.bbp-title-h3 {\n    color: #0f172a !important;\n    font-size: 22px !important;\n    margin-bottom: 20px !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-match-card {\n    background: #f8fafc !important;\n    border: 1px solid #e2e8f0 !important;\n    border-left: 4px solid #F0C018 !important;\n    padding: 24px !important;\n    margin-bottom: 20px !important;\n    border-radius: 6px !important;\n  }\n\n  #bbp-iso2858-finder-v1 h4.bbp-title-h4 {\n    color: #1848C0 !important;\n    font-size: 18px !important;\n    margin-bottom: 16px !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-table {\n    width: 100% !important;\n    border-collapse: collapse !important;\n    margin: 16px 0 !important;\n    font-size: 14.5px !important;\n    background: #ffffff !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-table th,\n  #bbp-iso2858-finder-v1 .bbp-table td {\n    border: 1px solid #e2e8f0 !important;\n    padding: 12px 16px !important;\n    text-align: left !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-table th {\n    background: #f1f5f9 !important;\n    color: #1e293b !important;\n    font-weight: 600 !important;\n    width: 40% !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-table td {\n    color: #334155 !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-match-notes {\n    color: #475569 !important;\n    font-size: 14.5px !important;\n    line-height: 1.5 !important;\n    margin-top: 16px !important;\n    margin-bottom: 0 !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-btn-cta {\n    display: inline-block !important;\n    background: #F0C018 !important;\n    color: #111111 !important;\n    padding: 12px 24px !important;\n    border-radius: 6px !important;\n    font-weight: 700 !important;\n    font-size: 14.5px !important;\n    text-decoration: none !important;\n    transition: background 0.2s ease !important;\n    margin-top: 10px !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-btn-cta:hover {\n    background: #d9ab12 !important;\n  }\n\n  #bbp-iso2858-finder-v1 .bbp-note {\n    color: #64748b !important;\n    font-size: 13px !important;\n    margin-top: 24px !important;\n    padding-top: 20px !important;\n    border-top: 1px solid #e2e8f0 !important;\n    line-height: 1.5 !important;\n  }\n\n  \/* ==========================================================================\n     Responsive\n     ========================================================================== *\/\n  @media(max-width: 860px) {\n    #bbp-iso2858-finder-v1 { padding: 40px 20px !important; }\n    #bbp-iso2858-finder-v1 .bbp-tool-header,\n    #bbp-iso2858-finder-v1 .bbp-tool-body { padding: 25px !important; }\n    #bbp-iso2858-finder-v1 .bbp-form-row { grid-template-columns: 1fr !important; gap: 16px !important; }\n    #bbp-iso2858-finder-v1 h2.bbp-title-h2 { font-size: 26px !important; }\n    #bbp-iso2858-finder-v1 .bbp-table th,\n    #bbp-iso2858-finder-v1 .bbp-table td { display: block !important; width: 100% !important; }\n    #bbp-iso2858-finder-v1 .bbp-table th { border-bottom: none !important; }\n  }\n<\/style>\n\n<div class=\"bbp-container\">\n  <div class=\"bbp-tool-wrapper\">\n\n    <div class=\"bbp-tool-header\">\n      <h2 class=\"bbp-title-h2\">ISO 2858 Replacement Finder<\/h2>\n      <p>Identify the BBP QI(H) drop-in equivalent for your existing end suction pump. Same ISO 2858 \/ EN 733 flange centerline means no piping changes when BBP arrives.<\/p>\n    <\/div>\n\n    <div class=\"bbp-tool-body\">\n      <div id=\"bbp-iso-replForm\">\n        <div class=\"bbp-form-row\">\n          <div class=\"bbp-field\">\n            <label for=\"bbp-iso-brand\">Existing pump brand<\/label>\n            <select id=\"bbp-iso-brand\">\n              <option value=\"\">\u2014 Select brand \u2014<\/option>\n              <option value=\"grundfos\">Grundfos (NB \/ NBG)<\/option>\n              <option value=\"xylem\">Xylem Lowara (e-NSC \/ NSC)<\/option>\n              <option value=\"sulzer\">Sulzer (SES \/ SKS)<\/option>\n              <option value=\"pentair\">Pentair Aurora 3800<\/option>\n              <option value=\"ksb\">KSB (Etanorm)<\/option>\n              <option value=\"armstrong\">Armstrong (4030)<\/option>\n              <option value=\"other\">Other ISO 2858 \/ EN 733<\/option>\n            <\/select>\n          <\/div>\n          <div class=\"bbp-field\">\n            <label for=\"bbp-iso-flange\">Flange standard (PN rating)<\/label>\n            <select id=\"bbp-iso-flange\">\n              <option value=\"pn10\">PN 10 (10 bar)<\/option>\n              <option value=\"pn16\">PN 16 (16 bar)<\/option>\n              <option value=\"ansi\">ANSI 150# (US)<\/option>\n              <option value=\"unsure\">Not sure<\/option>\n            <\/select>\n          <\/div>\n        <\/div>\n\n        <div class=\"bbp-form-row\">\n          <div class=\"bbp-field\">\n            <label for=\"bbp-iso-dn\">Suction nominal diameter (DN, mm)<\/label>\n            <input type=\"number\" id=\"bbp-iso-dn\" min=\"32\" max=\"1200\" step=\"1\" placeholder=\"e.g. 125\">\n          <\/div>\n          <div class=\"bbp-field\">\n            <label for=\"bbp-iso-duty\">Approximate duty point flow (m\u00b3\/h)<\/label>\n            <input type=\"number\" id=\"bbp-iso-duty\" min=\"0\" step=\"1\" placeholder=\"e.g. 200\">\n          <\/div>\n        <\/div>\n\n        <button type=\"button\" class=\"bbp-btn-primary\" onclick=\"bbpIsoFind()\">Find BBP Equivalent \u2192<\/button>\n      <\/div>\n\n      <div class=\"bbp-result-area\" id=\"bbp-iso-result\"><\/div>\n\n      <a href=\"#ct-popup-820\" id=\"bbp-static-popup-trigger\" class=\"ct-popup-trigger\" style=\"display:none !important;\" aria-hidden=\"true\"><\/a>\n    <\/div>\n\n  <\/div>\n<\/div>\n\n<script>\nfunction bbpIsoPickQiFrame(dn, duty) {\n  var frames = [\n    { model: 'QI 50-32-125',    dn: 50,  flow: [6, 12.5],   head: [20, 50]  },\n    { model: 'QI 65-40-200',    dn: 65,  flow: [12.5, 25],  head: [20, 50]  },\n    { model: 'QI 80-50-200',    dn: 80,  flow: [25, 50],    head: [20, 50]  },\n    { model: 'QI 100-65-200',   dn: 100, flow: [50, 100],   head: [20, 50]  },\n    { model: 'QI 125-100-315',  dn: 125, flow: [100, 200],  head: [20, 50]  },\n    { model: 'QI 150-125-400',  dn: 150, flow: [200, 315],  head: [20, 50]  },\n    { model: 'QI 200-150-400',  dn: 200, flow: [315, 500],  head: [20, 50]  },\n    { model: 'QI 250-200-400',  dn: 250, flow: [500, 1080], head: [20, 80]  },\n    { model: 'QIH 150-125-500', dn: 150, flow: [200, 315],  head: [80, 125] }\n  ];\n\n  var best = frames[0];\n  var bestScore = Infinity;\n\n  for (var i = 0; i < frames.length; i++) {\n    var f = frames[i];\n    var dnDiff = Math.abs(f.dn - dn);\n    var flowMid = (f.flow[0] + f.flow[1]) \/ 2;\n\n    \/\/ Denominator floor at 1 (replaces Math.max with nested if)\n    var denom = flowMid;\n    if (denom < 1) {\n      denom = 1;\n    }\n\n    var dutyDiff = Math.abs(flowMid - duty) \/ denom;\n    var score = dnDiff * 0.8 + dutyDiff * 200;\n\n    if (score < bestScore) {\n      bestScore = score;\n      best = f;\n    }\n  }\n\n  return best.model;\n}\n\nfunction bbpIsoFind() {\n  var brandMap = {\n    grundfos:  { name: 'Grundfos NB \/ NBG',            standard: 'EN 733 \/ ISO 2858',  notes: 'BBP QI(H) frames match the same flange centerline. Confirm PN rating at RFQ.' },\n    xylem:     { name: 'Xylem Lowara e-NSC \/ NSC',     standard: 'EN 733',             notes: 'Direct dimensional match for QI series up to 240 m\\u00b3\/h \/ 60 m duty.' },\n    sulzer:    { name: 'Sulzer SES \/ SKS',             standard: 'EN 733',             notes: 'QI(H) with 316 SS option matches drinking-water-certified SES configurations.' },\n    pentair:   { name: 'Pentair Aurora 3800',          standard: 'ANSI B73.1 pattern', notes: 'QI 80-65 \/ QI 100-80 typically match. Verify flange drilling \\u2014 Pentair uses ANSI hole pattern.' },\n    ksb:       { name: 'KSB Etanorm',                  standard: 'EN 733',             notes: 'Direct ISO 2858 \/ EN 733 footprint match across QI(H) range.' },\n    armstrong: { name: 'Armstrong 4030',               standard: 'EN 733-compatible',  notes: '4030 horizontal ES pumps match QI(H) flange-to-flange. NEMA-premium motor option available.' },\n    other:     { name: 'Other ISO 2858 \/ EN 733 pump', standard: 'ISO 2858 \/ EN 733',  notes: 'If your existing pump is built to ISO 2858 or EN 733, BBP QI(H) is footprint-compatible.' }\n  };\n\n  var brandEl  = document.getElementById('bbp-iso-brand');\n  var flangeEl = document.getElementById('bbp-iso-flange');\n  var dnEl     = document.getElementById('bbp-iso-dn');\n  var dutyEl   = document.getElementById('bbp-iso-duty');\n  var resultEl = document.getElementById('bbp-iso-result');\n\n  if (!brandEl)  { return; }\n  if (!flangeEl) { return; }\n  if (!dnEl)     { return; }\n  if (!dutyEl)   { return; }\n  if (!resultEl) { return; }\n\n  var brand  = brandEl.value;\n  var flange = flangeEl.value;\n  var dn     = parseInt(dnEl.value, 10) || 0;\n  var duty   = parseFloat(dutyEl.value) || 0;\n\n  \/\/ Brand validation via indexOf\n  var validBrands = ['grundfos', 'xylem', 'sulzer', 'pentair', 'ksb', 'armstrong', 'other'];\n  if (validBrands.indexOf(brand) < 0) {\n    return;\n  }\n\n  var info = brandMap[brand];\n  var qi   = bbpIsoPickQiFrame(dn, duty);\n\n  \/\/ Flange display text (replaces ternary with if\/else)\n  var flangeDisplay = flange.toUpperCase();\n  if (flange === 'unsure') {\n    flangeDisplay = 'Specify PN 10 or PN 16 at RFQ';\n  }\n\n  var html = '';\n  html += '<h3 class=\"bbp-title-h3\">BBP Drop-In Equivalent<\/h3>';\n  html += '<div class=\"bbp-match-card\">';\n  html +=   '<h4 class=\"bbp-title-h4\">' + info.name + ' \\u2192 ' + qi + '<\/h4>';\n  html +=   '<table class=\"bbp-table\"><tbody>';\n  html +=     '<tr><th>Existing pump standard<\/th><td>' + info.standard + '<\/td><\/tr>';\n  html +=     '<tr><th>Suction DN<\/th><td>' + dn + ' mm<\/td><\/tr>';\n  html +=     '<tr><th>Approx. duty<\/th><td>' + duty + ' m\\u00b3\/h<\/td><\/tr>';\n  html +=     '<tr><th>BBP equivalent frame<\/th><td>' + qi + '<\/td><\/tr>';\n  html +=     '<tr><th>Flange compatibility<\/th><td>' + flangeDisplay + '<\/td><\/tr>';\n  html +=   '<\/tbody><\/table>';\n  html +=   '<p class=\"bbp-match-notes\">' + info.notes + '<\/p>';\n  html += '<\/div>';\n\n  html += '<p class=\"bbp-note\">Heuristic match based on DN and duty point. For production replacement, please share the existing nameplate (model code, flow, head, motor kW) for a verified equivalent.<\/p>';\n  html += '<a class=\"bbp-btn-cta\" href=\"#ct-popup-820\" onclick=\"bbpIsoOpenPopup(event)\">Send Nameplate \\u2192 Get Verified Equivalent<\/a>';\n\n  resultEl.innerHTML = html;\n  resultEl.className = 'bbp-result-area show';\n}\n\nfunction bbpIsoOpenPopup(e) {\n  if (e) {\n    e.preventDefault();\n  }\n  var trigger = document.getElementById('bbp-static-popup-trigger');\n  if (trigger) {\n    trigger.click();\n  }\n}\n<\/script>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>ISO 2858 Replacement Finder Identify the BBP QI(H) drop-in equivalent for your existing end suction pump. Same ISO 2858 \/ EN 733 flange centerline means no piping changes when BBP arrives. Existing pump brand \u2014 Select brand \u2014Grundfos (NB \/ NBG)Xylem Lowara (e-NSC \/ NSC)Sulzer (SES \/ SKS)Pentair Aurora 3800KSB (Etanorm)Armstrong (4030)Other ISO 2858 \/ [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"parent":1759,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_gspb_post_css":"","footnotes":""},"class_list":["post-4713","page","type-page","status-publish","hentry"],"blocksy_meta":{"has_hero_section":"disabled","styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"_links":{"self":[{"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/pages\/4713","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/comments?post=4713"}],"version-history":[{"count":0,"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/pages\/4713\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/pages\/1759"}],"wp:attachment":[{"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/media?parent=4713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}