{"id":4687,"date":"2026-04-29T09:07:55","date_gmt":"2026-04-29T09:07:55","guid":{"rendered":"https:\/\/bbpmfg.com\/?page_id=4687"},"modified":"2026-04-29T09:16:17","modified_gmt":"2026-04-29T09:16:17","slug":"total-dynamic-head-tdh-calculator","status":"publish","type":"page","link":"https:\/\/bbpmfg.com\/ar\/irrigation-pumps\/agriculture-pump\/total-dynamic-head-tdh-calculator\/","title":{"rendered":"\u062d\u0627\u0633\u0628\u0629 \u0625\u062c\u0645\u0627\u0644\u064a \u0627\u0644\u0631\u0623\u0633 \u0627\u0644\u062f\u064a\u0646\u0627\u0645\u064a\u0643\u064a (TDH)"},"content":{"rendered":"<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-6b5e4af\" data-block-id=\"6b5e4af\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-6b5e4af-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-682fec2\" data-v=\"4\" data-block-id=\"682fec2\"><style>.stk-682fec2-container{margin-top:var(--stk--preset--spacing--40, 1rem) !important;margin-right:var(--stk--preset--spacing--40, 1rem) !important;margin-bottom:var(--stk--preset--spacing--40, 1rem) !important;margin-left:var(--stk--preset--spacing--40, 1rem) !important;}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-682fec2-container stk--no-background stk--no-padding\"><div class=\"has-text-align-center stk-block-content stk-inner-blocks stk-682fec2-inner-blocks\"><div class=\"ct-breadcrumbs\" data-source=\"rankmath\" ><nav aria-label=\"\u0641\u062a\u0627\u062a \u0627\u0644\u062e\u0628\u0632\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">\u0628\u064a\u062a<\/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-b73b8d5\" data-block-id=\"b73b8d5\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-b73b8d5-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-1128f14\" data-v=\"4\" data-block-id=\"1128f14\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-1128f14-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-1128f14-inner-blocks\">\n<style>\n#bbp-tdh { --c0: #0F1A33; --c1: #FFFFFF; --c2: #F0C018; --brand: #1848C0; --c3: #F5F7FC; --c4: #D8DCE8; --c5: #8E92A2; --c6: #4A4E5C; --fM: 'IBM Plex Mono','Courier New',monospace; font-family: inherit; max-width: 800px; margin: 0 auto; padding: 24px; color: var(--c0); }\n#bbp-tdh .bs-tdh-header { padding: 22px 24px; background: var(--brand); color: var(--c1); border-left: 6px solid var(--c2); margin-bottom: 24px; }\n#bbp-tdh .bs-tdh-header h2 { margin: 0; font-size: 22px; color: var(--c1); }\n#bbp-tdh .bs-tdh-header p { margin: 6px 0 0; font-size: 13px; opacity: 0.95; }\n#bbp-tdh .bs-tdh-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }\n#bbp-tdh .bs-tdh-field label { display: block; font-size: 12px; font-weight: 600; margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.4px; color: var(--c6); }\n#bbp-tdh .bs-tdh-field .bs-tdh-hint { font-size: 11px; color: var(--c5); font-weight: 400; text-transform: none; letter-spacing: 0; display: block; margin-top: 2px; }\n#bbp-tdh .bs-tdh-field input { width: 100%; height: 44px; padding: 0 12px; font-family: var(--fM); font-size: 14px; color: var(--c0); background: var(--c1); border: 1px solid var(--c4); border-radius: 0; box-sizing: border-box; }\n#bbp-tdh .bs-tdh-btn-calc { height: 48px; padding: 0 28px; font-size: 14px; font-weight: 600; color: var(--c1); background: var(--brand); border: none; cursor: pointer; }\n#bbp-tdh .bs-tdh-btn-calc:hover { background: #123A9A; }\n#bbp-tdh .bs-tdh-result { margin-top: 22px; padding: 24px; background: var(--c0); color: var(--c1); border-left: 4px solid var(--c2); display: none; }\n#bbp-tdh .bs-tdh-result.show { display: block; }\n#bbp-tdh .bs-tdh-result .bs-tdh-big { font-family: var(--fM); font-size: 42px; font-weight: 600; color: var(--c2); }\n#bbp-tdh .bs-tdh-result .bs-tdh-breakdown { margin-top: 14px; font-family: var(--fM); font-size: 13px; }\n#bbp-tdh .bs-tdh-result .bs-tdh-breakdown div { margin: 4px 0; opacity: 0.95; }\n#bbp-tdh .bs-tdh-formula { margin-top: 14px; padding: 12px 16px; background: var(--c3); color: var(--c0); font-family: var(--fM); font-size: 12px; }\n#bbp-tdh .bs-tdh-note { margin-top: 14px; font-size: 12px; color: var(--c5); font-style: italic; }\n@media (max-width: 600px) { #bbp-tdh .bs-tdh-form-grid { grid-template-columns: 1fr; } }\n<\/style>\n\n<div id=\"bbp-tdh\">\n  <div class=\"bs-tdh-header\">\n    <h2>\u062d\u0627\u0633\u0628\u0629 \u0625\u062c\u0645\u0627\u0644\u064a \u0627\u0644\u0631\u0623\u0633 \u0627\u0644\u062f\u064a\u0646\u0627\u0645\u064a\u0643\u064a (TDH)<\/h2>\n    <p>\u0627\u062d\u0633\u0628 \u0631\u0623\u0633 \u0627\u0644\u0645\u0636\u062e\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628 \u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u0631\u064a \u0641\u064a \u0645\u0632\u0631\u0639\u062a\u0643. \u0623\u0636\u0641 \u0627\u0644\u0627\u0631\u062a\u0641\u0627\u0639 \u0627\u0644\u062b\u0627\u0628\u062a \u0648\u0636\u063a\u0637 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0648\u0641\u0642\u062f\u0627\u0646 \u0627\u0644\u0627\u062d\u062a\u0643\u0627\u0643 \u0644\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u0649 TDH \u0628\u0627\u0644\u0623\u0645\u062a\u0627\u0631.<\/p>\n  <\/div>\n  \n  <div class=\"bs-tdh-form-grid\">\n    <div class=\"bs-tdh-field\">\n      <label for=\"bs-tdh-elev\">\u0627\u0644\u0627\u0631\u062a\u0641\u0627\u0639 \u0627\u0644\u062b\u0627\u0628\u062a (\u0645)<span class=\"bs-tdh-hint\">\u0627\u0644\u0631\u0641\u0639 \u0627\u0644\u0639\u0645\u0648\u062f\u064a \u0645\u0646 \u0633\u0637\u062d \u0627\u0644\u0645\u0627\u0621 \u0625\u0644\u0649 \u0627\u0644\u062a\u0641\u0631\u064a\u063a<\/span><\/label>\n      <input type=\"number\" id=\"bs-tdh-elev\" placeholder=\"\u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c 20\" min=\"0\" step=\"0.1\">\n    <\/div>\n    <div class=\"bs-tdh-field\">\n      <label for=\"bs-tdh-psi\">\u0636\u063a\u0637 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 (PSI)<span class=\"bs-tdh-hint\">\u0645\u0637\u0644\u0648\u0628 \u0641\u064a \u0627\u0644\u0631\u0634\u0627\u0634\/\u0628\u0627\u0639\u062b \u0628\u0627\u0644\u062a\u0646\u0642\u064a\u0637<\/span><\/label>\n      <input type=\"number\" id=\"bs-tdh-psi\" placeholder=\"\u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c 40\" min=\"0\" step=\"1\">\n    <\/div>\n    <div class=\"bs-tdh-field\">\n      <label for=\"bs-tdh-suct\">\u0627\u062d\u062a\u0643\u0627\u0643 \u062e\u0637 \u0627\u0644\u0634\u0641\u0637 (\u0645)<span class=\"bs-tdh-hint\">\u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 + \u0627\u0644\u062a\u0631\u0643\u064a\u0628\u0627\u062a \u0639\u0644\u0649 \u062c\u0627\u0646\u0628 \u0627\u0644\u0634\u0641\u0637<\/span><\/label>\n      <input type=\"number\" id=\"bs-tdh-suct\" placeholder=\"\u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c 1.5\" min=\"0\" step=\"0.1\">\n    <\/div>\n    <div class=\"bs-tdh-field\">\n      <label for=\"bs-tdh-disch\">\u0627\u062d\u062a\u0643\u0627\u0643 \u0627\u0644\u062a\u0641\u0631\u064a\u063a (\u0645)<span class=\"bs-tdh-hint\">\u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 + \u0627\u0644\u062a\u0631\u0643\u064a\u0628\u0627\u062a \u0639\u0644\u0649 \u062c\u0627\u0646\u0628 \u0627\u0644\u062a\u0641\u0631\u064a\u063a<\/span><\/label>\n      <input type=\"number\" id=\"bs-tdh-disch\" placeholder=\"\u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c 3.0\" min=\"0\" step=\"0.1\">\n    <\/div>\n  <\/div>\n  \n  <button class=\"bs-tdh-btn-calc\" onclick=\"bsCalculateTDH()\">\u062d\u0633\u0627\u0628 TDH<\/button>\n  \n  <a href=\"#ct-popup-820\" id=\"bs-hidden-popup-trigger-tdh\" style=\"display:none;\"><\/a>\n  \n  <div class=\"bs-tdh-result\" id=\"bs-tdh-result-box\"><\/div>\n  \n  <div class=\"bs-tdh-formula\">\u0627\u0644\u0635\u064a\u063a\u0629: TDH = \u0627\u0644\u0627\u0631\u062a\u0641\u0627\u0639 \u0627\u0644\u062b\u0627\u0628\u062a + (PSI \u00d7 0.703) + \u0627\u062d\u062a\u0643\u0627\u0643 \u0627\u0644\u0634\u0641\u0637 + \u0627\u062d\u062a\u0643\u0627\u0643 \u0627\u0644\u062a\u0641\u0631\u064a\u063a<\/div>\n  <p class=\"bs-tdh-note\">1 \u0631\u0637\u0644 \u0644\u0643\u0644 \u0628\u0648\u0635\u0629 \u0645\u0631\u0628\u0639\u0629 = 0.703 \u0645 \u0631\u0623\u0633 (\u0645\u0627\u0621\u060c SG=1.0). \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0645\u064a\u0627\u0647 \u0627\u0644\u0645\u062d\u0645\u0644\u0629 \u0628\u0627\u0644\u0631\u0648\u0627\u0633\u0628 \u0623\u0648 \u0627\u0644\u0645\u064a\u0627\u0647 \u0627\u0644\u0645\u0627\u0644\u062d\u0629\u060c \u0635\u062d\u064a\u062d \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u062c\u0627\u0630\u0628\u064a\u0629 \u0627\u0644\u0646\u0648\u0639\u064a\u0629. \u0627\u062d\u062a\u0643\u0627\u0643 \u0627\u0644\u0634\u0641\u0637 \u0628\u0633\u0631\u0639\u0629 5 \u0645\/\u062b \u0641\u064a \u0623\u0646\u0628\u0648\u0628 50 \u0645\u0645 = 0.08 \u0645 \u0644\u0643\u0644 \u0645\u062a\u0631 \u0645\u0646 \u0627\u0644\u0623\u0646\u0628\u0648\u0628 \u0627\u0631\u062c\u0639 \u0625\u0644\u0649 ANSI\/HI 14.6 \u0623\u0648 \u0645\u062e\u0637\u0637 Moody \u0644\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u0649 \u0642\u064a\u0645 \u062f\u0642\u064a\u0642\u0629.<\/p>\n<\/div>\n\n<script>\nfunction bsCalculateTDH() {\n  var elevVal = document.getElementById('bs-tdh-elev').value;\n  var psiVal = document.getElementById('bs-tdh-psi').value;\n  var suctVal = document.getElementById('bs-tdh-suct').value;\n  var dischVal = document.getElementById('bs-tdh-disch').value;\n  \n  var elev = parseFloat(elevVal);\n  if (!elev) { elev = 0; }\n  \n  var psi = parseFloat(psiVal);\n  if (!psi) { psi = 0; }\n  \n  var suct = parseFloat(suctVal);\n  if (!suct) { suct = 0; }\n  \n  var disch = parseFloat(dischVal);\n  if (!disch) { disch = 0; }\n  \n  var psiHead = psi * 0.703;\n  var tdh = elev + psiHead + suct + disch;\n  var resEl = document.getElementById('bs-tdh-result-box');\n  \n  var htmlOut = '<div><span style=\"font-size:13px;opacity:0.85;\">Total Dynamic Head<\/span><\/div>';\n  htmlOut = htmlOut + '<div class=\"bs-tdh-big\">' + tdh.toFixed(1) + ' m<\/div>';\n  htmlOut = htmlOut + '<div class=\"bs-tdh-breakdown\">';\n  htmlOut = htmlOut + '<div>\u2022 Static elevation: ' + elev.toFixed(1) + ' m<\/div>';\n  htmlOut = htmlOut + '<div>\u2022 Operating pressure (' + psi + ' PSI): ' + psiHead.toFixed(1) + ' m<\/div>';\n  htmlOut = htmlOut + '<div>\u2022 Suction friction: ' + suct.toFixed(1) + ' m<\/div>';\n  htmlOut = htmlOut + '<div>\u2022 Discharge friction: ' + disch.toFixed(1) + ' m<\/div>';\n  htmlOut = htmlOut + '<\/div>';\n  \n  \/\/ \u4fee\u590d\uff1a\u4f7f\u7528\u4ee3\u7406\u70b9\u51fb\u89e6\u53d1\u9690\u85cf\u7684\u9759\u6001\u5f39\u7a97\n  htmlOut = htmlOut + '<div style=\"margin-top:16px;\"><a href=\"javascript:void(0);\" onclick=\"document.getElementById(\\'bs-hidden-popup-trigger-tdh\\').click();\" style=\"display:inline-block;padding:10px 22px;background:#F0C018;color:#0F1A33;font-weight:600;text-decoration:none;font-size:13px;\">Get Q-Model Match for ' + tdh.toFixed(1) + ' m TDH<\/a><\/div>';\n  \n  resEl.innerHTML = htmlOut;\n  resEl.classList.add('show');\n}\n<\/script>\n<\/div><\/div><\/div>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Total Dynamic Head (TDH) Calculator Compute the required pump head for your farm irrigation system. Add static elevation, operating pressure, and friction loss to get TDH in meters. Static Elevation (m)Vertical lift from water surface to discharge Operating Pressure (PSI)Required at sprinkler \/ drip emitter Suction Line Friction (m)Pipe + fittings on suction side Discharge [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"parent":4001,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_gspb_post_css":"","footnotes":""},"class_list":["post-4687","page","type-page","status-publish","hentry"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/bbpmfg.com\/ar\/wp-json\/wp\/v2\/pages\/4687","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bbpmfg.com\/ar\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bbpmfg.com\/ar\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bbpmfg.com\/ar\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/bbpmfg.com\/ar\/wp-json\/wp\/v2\/comments?post=4687"}],"version-history":[{"count":0,"href":"https:\/\/bbpmfg.com\/ar\/wp-json\/wp\/v2\/pages\/4687\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/bbpmfg.com\/ar\/wp-json\/wp\/v2\/pages\/4001"}],"wp:attachment":[{"href":"https:\/\/bbpmfg.com\/ar\/wp-json\/wp\/v2\/media?parent=4687"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}