{"id":9315,"date":"2026-08-04T16:30:01","date_gmt":"2026-08-04T07:30:01","guid":{"rendered":"https:\/\/now0930.pe.kr\/wordpress\/?p=9315"},"modified":"2026-08-04T16:30:03","modified_gmt":"2026-08-04T07:30:03","slug":"valve-coefficient-control-valve-handbook-5%ec%9e%a5","status":"publish","type":"post","link":"https:\/\/now0930.pe.kr\/wordpress\/valve-coefficient-control-valve-handbook-5%ec%9e%a5\/","title":{"rendered":"Valve Coefficient, control Valve Handbook 5\uc7a5"},"content":{"rendered":"\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-now-0930 wp-block-embed-now-0930\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"8Hylc2AySD\"><a href=\"https:\/\/now0930.pe.kr\/wordpress\/valve-coefficient\/\">valve coefficient<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201cvalve coefficient\u201d \u2014 now0930 \uc77c\uc9c0\" src=\"https:\/\/now0930.pe.kr\/wordpress\/valve-coefficient\/embed\/#?secret=6bSBysUS3Z#?secret=8Hylc2AySD\" data-secret=\"8Hylc2AySD\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/08\/valve.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"valve\uc758 \uc0bd\uc785.\"><\/object><a id=\"wp-block-file--media-70deb97c-a311-4734-8ed0-e9be7950ebbf\" href=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/08\/valve.pdf\">valve<\/a><a href=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/08\/valve.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-70deb97c-a311-4734-8ed0-e9be7950ebbf\">\ub2e4\uc6b4\ub85c\ub4dc<\/a><\/div>\n\n\n\n<pre class=\"wp-block-code\"><code>{\n  \"schema_version\": \"1.0\",\n  \"topic_id\": \"control_valve_flow_coefficient_cv_liquid_sizing_selection\",\n  \"title_ko\": \"\uc81c\uc5b4\ubc38\ube0c \uc720\ub7c9\uacc4\uc218 Cv\uc640 \uc561\uccb4 \ubc38\ube0c \uc0b0\uc815\",\n  \"title_en\": \"Control Valve Flow Coefficient Cv and Liquid Valve Sizing\",\n  \"document_purpose\": \"\uc0b0\uc5c5\uacc4\uce21\uc81c\uc5b4\uae30\uc220\uc0ac \ub2f5\uc548\uc6a9 \ud575\uc2ec \uc124\uba85\uacfc AI \uac80\uc0c9\u00b7\ud3c9\uac00\uc6a9 \uad6c\uc870\ud654 \ub370\uc774\ud130\",\n  \"scope\": {\n    \"included\": &#91;\n      \"Cv \uc815\uc758\uc640 \ubb3c\ub9ac\uc801 \uc758\ubbf8\",\n      \"\uc561\uccb4 \uae30\ubcf8 \uc0ac\uc774\uc9d5\uc2dd\",\n      \"\ubcc0\uc218\uc640 \ub2e8\uc704 \uc124\uba85\",\n      \"\uae30\uc220\uc0ac \uacc4\uc0b0 \uc608\uc2dc\",\n      \"\uc81c\uc870\uc0ac Cv \ud45c\ub97c \uc774\uc6a9\ud55c \ubc38\ube0c \uc120\uc815\",\n      \"FP, FL, choked flow\uc758 \ucd5c\uc18c \ubcf4\uc815 \uac1c\ub150\",\n      \"\uc120\uc815\uac12\uacfc \uacc4\uc0b0\uac12\uc758 \ubc18\ubcf5 \uc0b0\uc815\",\n      \"\uacfc\uc18c\u00b7\uacfc\ub300 \uc120\uc815 \ubd80\uc791\uc6a9\",\n      \"\ucd5c\uc18c\u00b7\uc815\uc0c1\u00b7\ucd5c\ub300 \uc6b4\uc804\uc810 \uac80\ud1a0\"\n    ],\n    \"excluded_or_simplified\": &#91;\n      \"\uae30\uccb4\u00b7\uc99d\uae30 \uc0c1\uc138 \uc0ac\uc774\uc9d5\uc2dd\",\n      \"\uc810\uc131 \uc720\ub3d9 Reynolds \ubcf4\uc815\uc2dd\uc758 \uc0c1\uc138 \uc804\uac1c\",\n      \"\ubc30\uad00 \ud615\uc0c1\uacc4\uc218 FP\uc758 \uc0c1\uc138 \uc190\uc2e4\uacc4\uc218 \uacc4\uc0b0\",\n      \"\uc561\uccb4 \ub9c9\ud798\uc720\ub3d9 \ud55c\uacc4\uc2dd\uc758 \uc804\uccb4 \uc804\uac1c\",\n      \"\ud2b9\uc815 \uc81c\uc870\uc0ac \uc81c\ud488\uc758 \uc0c1\uc138 \uc120\uc815\"\n    ]\n  },\n  \"core_definition\": {\n    \"term\": \"Cv\",\n    \"aliases\": &#91;\n      \"valve coefficient\",\n      \"flow coefficient\",\n      \"\ubc38\ube0c \uc720\ub7c9\uacc4\uc218\",\n      \"\uc720\ub7c9\uacc4\uc218\"\n    ],\n    \"definition_ko\": \"60\u00b0F\uc758 \ubb3c\uc774 \ubc38\ube0c \uc804\ud6c4 \uc555\ub825\ucc28 1 psi\uc5d0\uc11c 1\ubd84 \ub3d9\uc548 \ud1b5\uacfc\ud558\ub294 US gallon \uc218\ub85c \uc815\uc758\ub418\ub294 \ubc38\ube0c \uc720\ub7c9\ub2a5\ub825 \uacc4\uc218\",\n    \"interpretation\": \"Cv\uac00 \ud074\uc218\ub85d \ub3d9\uc77c\ud55c \uc555\ub825\uac15\ud558\uc5d0\uc11c \ub354 \ub9ce\uc740 \uc720\ub7c9\uc744 \ud1b5\uacfc\uc2dc\ud0a8\ub2e4.\",\n    \"not_equal_to\": &#91;\n      \"\ubc38\ube0c \ud638\uce6d \ud06c\uae30\",\n      \"\ubc38\ube0c \uac1c\ub3c4\uc728\",\n      \"\ubc30\uad00 \uc9c1\uacbd\",\n      \"\ubb34\uc870\uac74\uc801\uc778 \ucd5c\ub300 \uc720\ub7c9\"\n    ]\n  },\n  \"equations\": &#91;\n    {\n      \"id\": \"liquid_flow_basic\",\n      \"latex\": \"Q=C_v\\\\sqrt{\\\\frac{\\\\Delta P}{SG}}\",\n      \"meaning\": \"\ube44\uc555\ucd95\uc131 \uc561\uccb4\uc758 \uae30\ubcf8 \uc720\ub7c9 \uad00\uacc4\",\n      \"conditions\": &#91;\n        \"US \ub2e8\uc704\uacc4\",\n        \"Q\ub294 gpm\",\n        \"\uc555\ub825\uc740 psi\",\n        \"\uc815\uc0c1 \ub09c\ub958 \uc720\ub3d9\",\n        \"\ub9c9\ud798\uc720\ub3d9\uacfc \uc9c1\uc811 \uc5f0\uacb0 \ubd80\uc18d\ud488\uc758 \uc601\ud5a5\uc774 \ubb34\uc2dc \uac00\ub2a5\ud55c \uacbd\uc6b0\"\n      ]\n    },\n    {\n      \"id\": \"required_cv_basic\",\n      \"latex\": \"C_v=Q\\\\sqrt{\\\\frac{SG}{\\\\Delta P}}\",\n      \"meaning\": \"\uacf5\uc815\uc870\uac74\uc5d0\uc11c \ud544\uc694\ud55c Cv \uacc4\uc0b0\uc2dd\"\n    },\n    {\n      \"id\": \"pressure_drop\",\n      \"latex\": \"\\\\Delta P=P_1-P_2\",\n      \"meaning\": \"\ubc38\ube0c \uc804\ud6c4 \uc2e4\uc81c \uc555\ub825\uac15\ud558\"\n    },\n    {\n      \"id\": \"required_cv_corrected\",\n      \"latex\": \"C_v=\\\\frac{Q}{N_1F_P}\\\\sqrt{\\\\frac{SG}{\\\\Delta P_{sizing}}}\",\n      \"meaning\": \"\ubc30\uad00 \ubd80\uc18d\ud488\uacfc \uc720\ud6a8 \uc555\ub825\uac15\ud558\ub97c \ubc18\uc601\ud55c \uc561\uccb4 Cv \uc2dd\"\n    },\n    {\n      \"id\": \"sizing_pressure_drop\",\n      \"latex\": \"\\\\Delta P_{sizing}=\\\\min(\\\\Delta P,\\\\Delta P_{choked})\",\n      \"meaning\": \"\uc2e4\uc81c \uc555\ub825\uac15\ud558\uc640 \ub9c9\ud798\uc720\ub3d9 \ud55c\uacc4 \uc911 \uc791\uc740 \uac12\uc744 \uc0ac\uc774\uc9d5\uc5d0 \uc0ac\uc6a9\"\n    }\n  ],\n  \"variables\": {\n    \"Q\": {\n      \"name_ko\": \"\uc694\uad6c \uc561\uccb4 \uccb4\uc801\uc720\ub7c9\",\n      \"typical_unit\": \"gpm\",\n      \"effect_on_cv\": \"Q\uac00 \uc99d\uac00\ud558\uba74 \ud544\uc694\ud55c Cv\uac00 \ube44\ub840\ud558\uc5ec \uc99d\uac00\ud55c\ub2e4.\"\n    },\n    \"SG\": {\n      \"name_ko\": \"\uc6b4\uc804\uc628\ub3c4\uc5d0\uc11c\uc758 \uc561\uccb4 \ube44\uc911\",\n      \"typical_unit\": \"dimensionless\",\n      \"effect_on_cv\": \"SG\uac00 \uc99d\uac00\ud558\uba74 \ud544\uc694\ud55c Cv\uac00 \uc81c\uacf1\uadfc \ube44\uc728\ub85c \uc99d\uac00\ud55c\ub2e4.\"\n    },\n    \"P1\": {\n      \"name_ko\": \"\ubc38\ube0c \uc785\uad6c \uc555\ub825\",\n      \"typical_unit\": \"psi\"\n    },\n    \"P2\": {\n      \"name_ko\": \"\ubc38\ube0c \ucd9c\uad6c \uc555\ub825\",\n      \"typical_unit\": \"psi\"\n    },\n    \"delta_P\": {\n      \"name_ko\": \"\ubc38\ube0c \uc804\ud6c4 \uc555\ub825\uac15\ud558\",\n      \"typical_unit\": \"psi\",\n      \"effect_on_cv\": \"\uc555\ub825\uac15\ud558\uac00 \uc99d\uac00\ud558\uba74 \ub3d9\uc77c \uc720\ub7c9\uc5d0 \ud544\uc694\ud55c Cv\ub294 \uac10\uc18c\ud55c\ub2e4.\"\n    },\n    \"N1\": {\n      \"name_ko\": \"\ub2e8\uc704\uacc4 \uc218\uce58\uc0c1\uc218\",\n      \"note\": \"Q\ub97c gpm, \uc555\ub825\uc744 psi\ub85c \uc0ac\uc6a9\ud558\ub294 \uae30\ubcf8\uc2dd\uc5d0\uc11c\ub294 1\"\n    },\n    \"FP\": {\n      \"name_ko\": \"\ubc30\uad00 \ud615\uc0c1\uacc4\uc218\",\n      \"meaning\": \"\ubc38\ube0c\uc5d0 \uc9c1\uc811 \uc5f0\uacb0\ub41c \ub9ac\ub4c0\uc11c, \uc5d8\ubcf4, \ud2f0 \ub4f1\uc758 \uc555\ub825\uc190\uc2e4 \ubcf4\uc815\",\n      \"default_without_attached_fittings\": 1.0\n    },\n    \"FL\": {\n      \"name_ko\": \"\uc561\uccb4 \uc555\ub825\ud68c\ubcf5\uacc4\uc218\",\n      \"meaning\": \"\ubc38\ube0c \ub0b4\ubd80 \uc555\ub825\ud68c\ubcf5\uacfc \ub9c9\ud798\uc720\ub3d9\u00b7\uce90\ube44\ud14c\uc774\uc158 \ud2b9\uc131\",\n      \"source\": \"\uc81c\uc870\uc0ac \uc81c\ud488\uc790\ub8cc \ub610\ub294 \uc2dc\ud5d8\uc790\ub8cc\",\n      \"matching_rule\": \"Cv\uc640 \ub3d9\uc77c \ubc38\ube0c \ubc0f \ub3d9\uc77c \uac1c\ub3c4\uc5d0 \ub300\uc751\ud558\ub294 FL\uc744 \uc0ac\uc6a9\ud55c\ub2e4.\"\n    }\n  },\n  \"sizing_story\": &#91;\n    {\n      \"step\": 1,\n      \"action\": \"\uacf5\uc815\uc870\uac74\uc744 \uc815\ud55c\ub2e4.\",\n      \"inputs\": &#91;\"Q\", \"P1\", \"P2\", \"SG\"],\n      \"reason\": \"\ud544\uc694 \uc720\ub7c9\uacfc \uc0ac\uc6a9 \uac00\ub2a5\ud55c \ubc38\ube0c \uc555\ub825\uac15\ud558\ub97c \ud655\uc815\ud55c\ub2e4.\"\n    },\n    {\n      \"step\": 2,\n      \"action\": \"\uc555\ub825\uac15\ud558\ub97c \uacc4\uc0b0\ud55c\ub2e4.\",\n      \"equation_id\": \"pressure_drop\"\n    },\n    {\n      \"step\": 3,\n      \"action\": \"\ud544\uc694 Cv\ub97c \uacc4\uc0b0\ud55c\ub2e4.\",\n      \"equation_id\": \"required_cv_basic\"\n    },\n    {\n      \"step\": 4,\n      \"action\": \"\uc81c\uc870\uc0ac Cv \ud45c\uc5d0\uc11c \ud6c4\ubcf4 \ubc38\ube0c, \ud2b8\ub9bc \ubc0f \uac1c\ub3c4\ub97c \uc120\uc815\ud55c\ub2e4.\",\n      \"selection_rule\": \"\ud544\uc694 Cv\ub97c \uc801\uc815 \uac1c\ub3c4\uc5d0\uc11c \uc81c\uacf5\ud558\ub294 \uc81c\ud488\uc744 \uc120\ud0dd\ud55c\ub2e4.\"\n    },\n    {\n      \"step\": 5,\n      \"action\": \"FP, FL, \ub9c9\ud798\uc720\ub3d9 \ubc0f \uce90\ube44\ud14c\uc774\uc158\uc744 \uac80\ud1a0\ud55c\ub2e4.\"\n    },\n    {\n      \"step\": 6,\n      \"action\": \"\uc120\uc815 \uac1c\ub3c4\uc758 Cv\uc640 FL\ub85c \ub2e4\uc2dc \uacc4\uc0b0\ud55c\ub2e4.\",\n      \"termination_rule\": \"\uacc4\uc0b0\ub41c \ud544\uc694 Cv\uc640 \ubc18\ubcf5\uc5d0 \uc0ac\uc6a9\ud55c Cv\uac00 \ucda9\ubd84\ud788 \uac00\uae4c\uc6b0\uba74 \uc885\ub8cc\ud55c\ub2e4.\"\n    },\n    {\n      \"step\": 7,\n      \"action\": \"\ucd5c\uc18c, \uc815\uc0c1, \ucd5c\ub300 \uc720\ub7c9\uc870\uac74\uc5d0\uc11c \uc81c\uc5b4\uc131\uacfc \uc6a9\ub7c9\uc744 \uac80\uc99d\ud55c\ub2e4.\"\n    }\n  ],\n  \"worked_example\": {\n    \"source_context\": \"130\ud68c \uc0b0\uc5c5\uacc4\uce21\uc81c\uc5b4\uae30\uc220\uc0ac 4\uad50\uc2dc 6\ubc88\",\n    \"inputs\": {\n      \"Q_gpm\": 300,\n      \"SG\": 0.9,\n      \"delta_P_psi\": 90\n    },\n    \"calculation\": \"Cv = 300 * sqrt(0.9 \/ 90) = 30\",\n    \"required_cv\": 30,\n    \"problem_table_excerpt\": &#91;\n      {\"valve_size_inch\": 1.0, \"rated_cv\": 15, \"judgment\": \"insufficient\"},\n      {\"valve_size_inch\": 1.5, \"rated_cv\": 35, \"judgment\": \"selected\"},\n      {\"valve_size_inch\": 2.0, \"rated_cv\": 55, \"judgment\": \"capacity sufficient but potentially oversized\"}\n    ],\n    \"selected_valve_size_inch\": 1.5,\n    \"selection_reason\": \"\ubb38\uc81c\uc5d0\uc11c \uc81c\uc2dc\ud55c \ud45c\uc5d0\uc11c \ud544\uc694 Cv 30\uc744 \ucd08\uacfc\ud558\ub294 \ucd5c\uc18c \uc815\uaca9 Cv\uac00 35\uc774\uae30 \ub54c\ubb38\",\n    \"limitation\": \"\ubb38\uc81c \uc81c\uc2dc \ud45c\uc758 \uac12\uc774\uba70 \ubaa8\ub4e0 1.5 inch \ubc38\ube0c\uc758 \ubcf4\ud3b8\uc801 Cv\uac00 \uc544\ub2c8\ub2e4.\"\n  },\n  \"iteration\": {\n    \"required\": true,\n    \"why\": \"FP\uc640 FL\uc740 \ubc38\ube0c \ud06c\uae30, \ud2b8\ub9bc, Cv \ubc0f \uac1c\ub3c4\uc5d0 \uc601\ud5a5\uc744 \ubc1b\uc73c\uba70 \uacc4\uc0b0\ub41c Cv\uc5d0 \ub530\ub77c \ud6c4\ubcf4 \uac1c\ub3c4\uac00 \ubc14\ub014 \uc218 \uc788\uae30 \ub54c\ubb38\",\n    \"loop\": &#91;\n      \"\ud6c4\ubcf4 \ubc38\ube0c \ud06c\uae30\uc640 \uac1c\ub3c4 \uac00\uc815\",\n      \"\uc81c\ud488\uc790\ub8cc\uc5d0\uc11c \ub300\uc751 Cv\uc640 FL \uc870\ud68c\",\n      \"FP\uc640 choked flow \uac80\ud1a0\",\n      \"\ud544\uc694 Cv \uacc4\uc0b0\",\n      \"\uacc4\uc0b0 Cv\uc5d0 \ub300\uc751\ud558\ub294 \uc0c8 \uac1c\ub3c4 \ud655\uc778\",\n      \"\uc0c8 \uac1c\ub3c4\uc758 Cv\uc640 FL\ub85c \uc7ac\uacc4\uc0b0\"\n    ],\n    \"convergence_condition\": \"\uc0c8 \uacc4\uc0b0 Cv\uc640 \uc774\uc804 \ubc18\ubcf5\uc5d0 \uc0ac\uc6a9\ud55c Cv\uac00 \ucda9\ubd84\ud788 \uac00\uae4c\uc6c0\",\n    \"matching_constraint\": \"Cv\uc640 FL\uc740 \ubc18\ub4dc\uc2dc \uac19\uc740 \ubc38\ube0c\uc640 \uac19\uc740 \uac1c\ub3c4\uc758 \uac12\uc774\uc5b4\uc57c \ud55c\ub2e4.\"\n  },\n  \"operating_points\": &#91;\n    {\n      \"name\": \"minimum_flow\",\n      \"purpose\": \"\ub0ae\uc740 \uc720\ub7c9\uc5d0\uc11c \uc548\uc815\uc801 \uc81c\uc5b4\uc640 rangeability \ud655\uc778\"\n    },\n    {\n      \"name\": \"normal_flow\",\n      \"purpose\": \"\uc815\uc0c1 \uc6b4\uc804\uc810\uc774 \uc801\uc815 \uac1c\ub3c4\uc5d0 \uc704\uce58\ud558\ub294\uc9c0 \ud655\uc778\"\n    },\n    {\n      \"name\": \"maximum_flow\",\n      \"purpose\": \"\ucd5c\ub300 \uc694\uad6c\uc720\ub7c9\uacfc \uc555\ub825\uc870\uac74 \ucda9\uc871 \ud655\uc778\"\n    }\n  ],\n  \"selection_errors\": {\n    \"undersized\": {\n      \"condition\": \"rated Cv &lt; required Cv\",\n      \"effects\": &#91;\n        \"\ucd5c\ub300 \uc720\ub7c9 \ubd80\uc871\",\n        \"\uc0c1\ub958 \uc555\ub825 \uc0c1\uc2b9\",\n        \"\ubc38\ube0c \uc555\ub825\uac15\ud558 \uc99d\uac00\",\n        \"\uce90\ube44\ud14c\uc774\uc158 \ub610\ub294 \ud50c\ub798\uc2f1 \uc704\ud5d8 \uc99d\uac00\",\n        \"\uc0dd\uc0b0\ub7c9 \uc81c\ud55c\"\n      ]\n    },\n    \"oversized\": {\n      \"condition\": \"rated Cv is excessively larger than required Cv\",\n      \"effects\": &#91;\n        \"\uc815\uc0c1 \uc6b4\uc804\uc774 \ub0ae\uc740 \uac1c\ub3c4\uc5d0 \uc9d1\uc911\",\n        \"\ubc38\ube0c \uc774\ub4dd \uc99d\uac00\",\n        \"\ud5cc\ud305\uacfc \uc81c\uc5b4 \ubd88\uc548\uc815\",\n        \"\uc2dc\ud2b8 \ubd80\uadfc \uace0\uc720\uc18d\uacfc \ud2b8\ub9bc \uc190\uc0c1 \uac00\ub2a5\",\n        \"\uad6c\ub9e4 \ubc0f \uc124\uce58\ube44 \uc99d\uac00\"\n      ]\n    }\n  },\n  \"accepted_claims\": &#91;\n    \"Cv\ub294 \ubc38\ube0c\uc758 \uc720\ub7c9 \ud1b5\uacfc \ub2a5\ub825\uc774\ub2e4.\",\n    \"\ud544\uc694 Cv\uc640 \uc815\uaca9 Cv\ub97c \uad6c\ubd84\ud574\uc57c \ud55c\ub2e4.\",\n    \"\ub3d9\uc77c NPS\ub77c\ub3c4 \ud2b8\ub9bc\uacfc \uac1c\ub3c4\uc5d0 \ub530\ub77c Cv\uac00 \ub2ec\ub77c\uc9c4\ub2e4.\",\n    \"\uc561\uccb4 \uae30\ubcf8\uc2dd\uc740 Cv = Q sqrt(SG \/ deltaP)\uc774\ub2e4.\",\n    \"\uc2e4\uc81c \uc120\uc815\uc740 \uc81c\uc870\uc0ac Cv \ubc0f FL \uc790\ub8cc\uc640 \uc6b4\uc804\ubc94\uc704\ub97c \ud568\uaed8 \uac80\ud1a0\ud55c\ub2e4.\",\n    \"Cv\uc640 FL\uc740 \uac19\uc740 \ubc38\ube0c \ubc0f \uac19\uc740 \uac1c\ub3c4\uc758 \ub300\uc751\uac12\uc744 \uc0ac\uc6a9\ud55c\ub2e4.\"\n  ],\n  \"rejected_claims\": &#91;\n    \"Cv\ub294 \ubc38\ube0c \uc9c1\uacbd\uc774\ub2e4.\",\n    \"1.5 inch \ubc38\ube0c\uc758 Cv\ub294 \ud56d\uc0c1 35\uc774\ub2e4.\",\n    \"\uac00\uc7a5 \ud070 \ubc38\ube0c\ub97c \uc120\ud0dd\ud560\uc218\ub85d \uc81c\uc5b4\uac00 \uc88b\uc544\uc9c4\ub2e4.\",\n    \"\uc555\ub825\uac15\ud558\ub97c \ubb34\ud55c\ud788 \ub192\uc774\uba74 \uc720\ub7c9\ub3c4 \ubb34\ud55c\ud788 \uc99d\uac00\ud55c\ub2e4.\",\n    \"\uc561\uccb4 \uae30\ubcf8\uc2dd\uc744 \uae30\uccb4\uc640 \uc99d\uae30\uc5d0 \uadf8\ub300\ub85c \uc801\uc6a9\ud560 \uc218 \uc788\ub2e4.\",\n    \"Cv\uc640 FL\uc740 \uc11c\ub85c \ub2e4\ub978 \uac1c\ub3c4\uc758 \uac12\uc744 \ud63c\ud569\ud574\ub3c4 \ub41c\ub2e4.\"\n  ],\n  \"exam_answer_outline\": &#91;\n    \"\uc815\uc758: Cv=1\uc758 \ud45c\uc900\uc870\uac74\uacfc \uc720\ub7c9\ub2a5\ub825 \uc124\uba85\",\n    \"\uae30\ubcf8\uc2dd: Cv = Q sqrt(SG \/ deltaP)\",\n    \"\ubcc0\uc218: Q, SG, P1, P2, deltaP \uc124\uba85\",\n    \"\uacc4\uc0b0: \uacf5\uc815\uc870\uac74\uc73c\ub85c \ud544\uc694 Cv \uc0b0\ucd9c\",\n    \"\uc120\uc815: \uc81c\uc870\uc0ac\ud45c\uc5d0\uc11c \ubc38\ube0c \ud06c\uae30, \ud2b8\ub9bc, \uac1c\ub3c4 \uc120\uc815\",\n    \"\ubcf4\uc815: FP, FL, choked flow, cavitation \uc5b8\uae09\",\n    \"\uac80\uc99d: \ucd5c\uc18c\u00b7\uc815\uc0c1\u00b7\ucd5c\ub300 \uc720\ub7c9\uacfc \uacfc\uc18c\u00b7\uacfc\ub300 \uc120\uc815 \ubb38\uc81c\",\n    \"\uacb0\ub860: \uc6a9\ub7c9\uacfc \uc81c\uc5b4\uc131\uc744 \ub3d9\uc2dc\uc5d0 \ub9cc\uc871\ud558\ub3c4\ub85d \ubc18\ubcf5 \uc120\uc815\"\n  ],\n  \"routing_keywords\": &#91;\n    \"Cv\",\n    \"valve coefficient\",\n    \"flow coefficient\",\n    \"control valve sizing\",\n    \"liquid valve sizing\",\n    \"specific gravity\",\n    \"pressure drop\",\n    \"FP\",\n    \"FL\",\n    \"choked flow\",\n    \"cavitation\",\n    \"oversizing\",\n    \"undersizing\"\n  ],\n  \"sources\": &#91;\n    {\n      \"type\": \"book\",\n      \"title\": \"Control Valve Handbook\",\n      \"edition\": \"Sixth Edition\",\n      \"publisher_or_author\": \"Emerson\",\n      \"relevant_sections\": &#91;\"Chapter 5\", \"5.8 Sizing Valves for Liquids\"]\n    },\n    {\n      \"type\": \"book\",\n      \"title\": \"Valve Handbook\",\n      \"edition\": \"Third Edition\",\n      \"author\": \"Phillip L. Skousen\",\n      \"relevant_sections\": &#91;\"2.1 Valve Coefficients\", \"7.3 Body Sizing of Liquid-Service Control Valves\"]\n    },\n    {\n      \"type\": \"web_page\",\n      \"title\": \"valve coefficient\",\n      \"url\": \"https:\/\/now0930.pe.kr\/wordpress\/valve-coefficient\/\",\n      \"relevant_content\": \"130\ud68c 4\uad50\uc2dc 6\ubc88 \ubb38\uc81c, \ubb38\uc81c \uc81c\uc2dc Cv \ud45c, \uc791\uc131 \ub2f5\uc548\"\n    }\n  ]\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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