{"id":6044,"date":"2026-11-02T10:14:20","date_gmt":"2026-11-02T07:14:20","guid":{"rendered":"https:\/\/fu-mech.com\/?post_type=guide&#038;p=6044"},"modified":"2026-11-02T10:14:20","modified_gmt":"2026-11-02T07:14:20","slug":"check-valves-fire-protection-guide","status":"publish","type":"guide","link":"https:\/\/fu-mech.com\/ar\/library\/check-valves-fire-protection-guide\/","title":{"rendered":"\u0645\u062d\u0628\u0633 \u0639\u062f\u0645 \u0627\u0644\u0631\u062c\u0648\u0639 (Check Valve) \u0641\u064a \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062d\u0631\u064a\u0642: \u0627\u0644\u0623\u0646\u0648\u0627\u0639 \u0648\u062f\u0644\u064a\u0644 \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631"},"content":{"rendered":"<p><\/p>\n<p>\u0645\u062d\u0628\u0633 \u0639\u062f\u0645 \u0627\u0644\u0631\u062c\u0648\u0639 <span dir=\"ltr\">(Check Valve)<\/span> \u064a\u0633\u0645\u062d \u0628\u0645\u0631\u0648\u0631 \u0627\u0644\u0645\u0627\u0621 \u0641\u064a \u0627\u062a\u062c\u0627\u0647 \u0648\u0627\u062d\u062f \u0641\u0642\u0637\u060c \u0648\u064a\u064f\u063a\u0644\u0642 \u062a\u0644\u0642\u0627\u0626\u064a\u0627\u064b \u0639\u0646\u062f \u0627\u0646\u0639\u0643\u0627\u0633 \u0627\u0644\u062a\u062f\u0641\u0642. \u0641\u064a \u0634\u0628\u0643\u0627\u062a \u0627\u0644\u062d\u0631\u064a\u0642 \u064a\u062d\u0645\u064a \u0627\u0644\u0645\u0636\u062e\u0627\u062a \u0645\u0646 \u0627\u0644\u0627\u0631\u062a\u062f\u0627\u062f\u060c \u0648\u064a\u0645\u0646\u0639 \u062a\u0641\u0631\u064a\u063a \u0627\u0644\u0635\u0648\u0627\u0639\u062f\u060c \u0648\u064a\u0641\u0635\u0644 \u0645\u0635\u0627\u062f\u0631 \u0627\u0644\u0645\u064a\u0627\u0647 \u0639\u0646 \u0628\u0639\u0636\u0647\u0627. \u0647\u0630\u0627 \u0627\u0644\u062f\u0644\u064a\u0644 \u064a\u0634\u0631\u062d \u0623\u0646\u0648\u0627\u0639\u0647\u060c \u0648\u0645\u062a\u0649 \u062a\u0633\u062a\u062e\u062f\u0645 \u0643\u0644 \u0646\u0648\u0639\u060c \u0648\u0645\u0627 \u0627\u0644\u0630\u064a \u064a\u062c\u0628 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646\u0647 \u0642\u0628\u0644 \u0627\u0644\u0637\u0644\u0628 \u0648\u0627\u0644\u062a\u0631\u0643\u064a\u0628.<\/p>\n<div class=\"fm-a-key\">\n<p class=\"fm-a-key__t\">\u0628\u0627\u062e\u062a\u0635\u0627\u0631<\/p>\n<ul>\n<li>\u064a\u0639\u0645\u0644 \u0630\u0627\u062a\u064a\u0627\u064b \u0628\u0636\u063a\u0637 \u0627\u0644\u0645\u0627\u0621\u060c \u0648\u0644\u0627 \u064a\u062d\u062a\u0627\u062c \u062a\u0634\u063a\u064a\u0644\u0627\u064b \u064a\u062f\u0648\u064a\u0627\u064b.<\/li>\n<li>\u0623\u0634\u0647\u0631 \u0627\u0644\u0623\u0646\u0648\u0627\u0639: <strong>\u0627\u0644\u0645\u062a\u0623\u0631\u062c\u062d <span dir=\"ltr\">(Swing)<\/span><\/strong> \u0648<strong>\u0627\u0644\u0648\u064a\u0641\u0631 <span dir=\"ltr\">(Wafer)<\/span><\/strong>\u060c \u0648\u0644\u0643\u0644 \u0645\u0646\u0647\u0645\u0627 \u0645\u0643\u0627\u0646 \u0645\u0646\u0627\u0633\u0628.<\/li>\n<li>\u0641\u064a \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062d\u0631\u064a\u0642 \u0627\u062e\u062a\u0631 \u0645\u0648\u062f\u064a\u0644\u0627\u064b <strong>\u0645\u0639\u062a\u0645\u062f\u0627\u064b UL \/ FM<\/strong> \u0644\u0644\u0645\u0642\u0627\u0633 \u0648\u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u064a\u0646.<\/li>\n<li>\u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0645\u0648\u0636\u062d \u0628\u0633\u0647\u0645 \u0639\u0644\u0649 \u0627\u0644\u062c\u0633\u0645\u060c \u0648\u0639\u0643\u0633\u0647 \u064a\u0639\u0637\u0651\u0644 \u0627\u0644\u062e\u0637 \u0628\u0627\u0644\u0643\u0627\u0645\u0644.<\/li>\n<\/ul>\n<\/div>\n<h2>\u0643\u064a\u0641 \u064a\u0639\u0645\u0644 \u0645\u062d\u0628\u0633 \u0639\u062f\u0645 \u0627\u0644\u0631\u062c\u0648\u0639\u061f<\/h2>\n<p>\u062f\u0627\u062e\u0644 \u0627\u0644\u062c\u0633\u0645 \u0642\u0631\u0635 <span dir=\"ltr\">(Disc)<\/span> \u064a\u0641\u062a\u062d\u0647 \u0636\u063a\u0637 \u0627\u0644\u0645\u0627\u0621 \u0627\u0644\u0645\u062a\u062f\u0641\u0642 \u0641\u064a \u0627\u0644\u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u0635\u062d\u064a\u062d. \u0639\u0646\u062f\u0645\u0627 \u064a\u062a\u0648\u0642\u0641 \u0627\u0644\u062a\u062f\u0641\u0642 \u0623\u0648 \u064a\u0646\u0639\u0643\u0633\u060c \u064a\u0639\u0648\u062f \u0627\u0644\u0642\u0631\u0635 \u0625\u0644\u0649 \u0645\u0642\u0639\u062f\u0647 \u0628\u0648\u0632\u0646\u0647 \u0623\u0648 \u0628\u0646\u0627\u0628\u0636\u060c \u0641\u064a\u064f\u063a\u0644\u0642 \u0627\u0644\u062e\u0637 \u0648\u064a\u0645\u0646\u0639 \u0631\u062c\u0648\u0639 \u0627\u0644\u0645\u0627\u0621.<\/p>\n<figure class=\"fm-a-fig\"><svg viewBox=\"0 0 520 200\" role=\"img\" direction=\"ltr\"><title>\u0645\u0642\u0637\u0639 \u0645\u0628\u0633\u0637 \u0644\u0645\u062d\u0628\u0633 \u0639\u062f\u0645 \u0631\u062c\u0648\u0639 \u0645\u062a\u0623\u0631\u062c\u062d<\/title><g fill=\"none\" stroke=\"currentColor\" stroke-width=\"3\"><path d=\"M20 70 H170 V40 H350 V70 H500 M20 150 H170 V170 H350 V150 H500\"><\/path><line x1=\"235\" y1=\"62\" x2=\"235\" y2=\"150\" stroke-width=\"2\" opacity=\".5\"><\/line><\/g><g class=\"acc\" stroke=\"currentColor\" stroke-width=\"7\" stroke-linecap=\"round\"><line x1=\"238\" y1=\"58\" x2=\"290\" y2=\"140\"><\/line><\/g><circle cx=\"238\" cy=\"56\" r=\"6\" fill=\"currentColor\"><\/circle><g stroke=\"currentColor\" stroke-width=\"3\" fill=\"none\"><path d=\"M50 110 H130 M118 100 L132 110 L118 120\"><\/path><path d=\"M390 110 H470 M458 100 L472 110 L458 120\"><\/path><\/g><g fill=\"currentColor\" font-size=\"14\" font-family=\"inherit\" text-anchor=\"middle\"><text x=\"90\" y=\"98\">\u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u062a\u062f\u0641\u0642<\/text><text x=\"262\" y=\"30\">\u0627\u0644\u0645\u0641\u0635\u0644<\/text><text x=\"300\" y=\"192\">\u0627\u0644\u0642\u0631\u0635<\/text><\/g><\/svg><figcaption>\u0645\u0642\u0637\u0639 \u0645\u0628\u0633\u0637 \u0644\u0645\u062d\u0628\u0633 \u0645\u062a\u0623\u0631\u062c\u062d: \u0627\u0644\u062a\u062f\u0641\u0642 \u0641\u064a \u0627\u0644\u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u0635\u062d\u064a\u062d \u064a\u0631\u0641\u0639 \u0627\u0644\u0642\u0631\u0635\u060c \u0648\u0627\u0644\u062a\u062f\u0641\u0642 \u0627\u0644\u0639\u0643\u0633\u064a \u064a\u0639\u064a\u062f\u0647 \u0625\u0644\u0649 \u0645\u0642\u0639\u062f\u0647.<\/figcaption><\/figure>\n<h2>\u0623\u064a\u0646 \u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0641\u064a \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062d\u0631\u064a\u0642\u061f<\/h2>\n<ul>\n<li><strong>\u0639\u0644\u0649 \u0637\u0631\u062f \u0645\u0636\u062e\u0629 \u0627\u0644\u062d\u0631\u064a\u0642:<\/strong> \u0644\u0645\u0646\u0639 \u0631\u062c\u0648\u0639 \u0627\u0644\u0645\u0627\u0621 \u0625\u0644\u0649 \u0627\u0644\u0645\u0636\u062e\u0629 \u0639\u0646\u062f \u062a\u0648\u0642\u0641\u0647\u0627.<\/li>\n<li><strong>\u0639\u0644\u0649 \u062e\u0637\u0648\u0637 \u0627\u0644\u062a\u063a\u0630\u064a\u0629 \u0648\u0627\u0644\u0635\u0648\u0627\u0639\u062f:<\/strong> \u0644\u0625\u0628\u0642\u0627\u0621 \u0627\u0644\u0634\u0628\u0643\u0629 \u0645\u0645\u062a\u0644\u0626\u0629 \u0648\u0645\u0636\u063a\u0648\u0637\u0629.<\/li>\n<li><strong>\u0628\u064a\u0646 \u0645\u0635\u0627\u062f\u0631 \u0627\u0644\u0645\u064a\u0627\u0647:<\/strong> \u0645\u062b\u0644 \u0627\u0644\u0641\u0635\u0644 \u0628\u064a\u0646 \u062e\u0637 \u0627\u0644\u0634\u0628\u0643\u0629 \u0627\u0644\u0639\u0627\u0645\u0629 \u0648\u062e\u0637 \u0648\u0635\u0644\u0629 \u0627\u0644\u062f\u0641\u0627\u0639 \u0627\u0644\u0645\u062f\u0646\u064a.<\/li>\n<\/ul>\n<div class=\"fm-a-note\">\n<p class=\"fm-a-note__t\">\u0645\u062d\u0628\u0633 \u0627\u0644\u0625\u0646\u0630\u0627\u0631 \u0644\u064a\u0633 \u0645\u062d\u0628\u0633 \u0639\u062f\u0645 \u0631\u062c\u0648\u0639 \u0639\u0627\u062f\u064a\u0627\u064b<\/p>\n<p><a class=\"fm-il\" href=\"\/ar\/library\/wet-alarm-check-valve-guide\/\">\u0645\u062d\u0628\u0633 \u0627\u0644\u0625\u0646\u0630\u0627\u0631<\/a> \u0627\u0644\u0631\u0637\u0628 <span dir=\"ltr\">(Wet Alarm Check Valve)<\/span> \u064a\u0639\u0645\u0644 \u0623\u064a\u0636\u0627\u064b \u0643\u0645\u062d\u0628\u0633 \u0639\u062f\u0645 \u0631\u062c\u0648\u0639\u060c \u0644\u0643\u0646 \u0648\u0638\u064a\u0641\u062a\u0647 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u062a\u0634\u063a\u064a\u0644 \u062c\u0631\u0633 \u0627\u0644\u0625\u0646\u0630\u0627\u0631 \u0639\u0646\u062f \u062a\u062f\u0641\u0642 \u0627\u0644\u0645\u0627\u0621 \u0625\u0644\u0649 <a class=\"fm-il\" href=\"\/ar\/library\/sprinkler-k-factor-flow\/\">\u0627\u0644\u0631\u0634\u0627\u0634\u0627\u062a<\/a>. \u0644\u0647 \u0645\u0642\u0627\u0644 \u0645\u0633\u062a\u0642\u0644 \u0641\u064a \u0627\u0644\u0645\u0643\u062a\u0628\u0629.<\/p>\n<\/div>\n<h2>\u0627\u0644\u0645\u062a\u0623\u0631\u062c\u062d \u0623\u0645 \u0627\u0644\u0648\u064a\u0641\u0631\u061f<\/h2>\n<div class=\"fm-a-table\">\n<table>\n<thead>\n<tr>\n<th>\u0627\u0644\u0628\u0646\u062f<\/th>\n<th>\u0645\u062a\u0623\u0631\u062c\u062d (Swing)<\/th>\n<th>\u0648\u064a\u0641\u0631 (Wafer)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u0625\u063a\u0644\u0627\u0642<\/td>\n<td>\u0642\u0631\u0635 \u0639\u0644\u0649 \u0645\u0641\u0635\u0644 \u064a\u0639\u0648\u062f \u0628\u0648\u0632\u0646\u0647<\/td>\n<td>\u0642\u0631\u0635 \u0623\u0648 \u0642\u0631\u0635\u0627\u0646 \u0628\u0646\u0627\u0628\u0636<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u0637\u0648\u0644<\/td>\n<td>\u0623\u0637\u0648\u0644<\/td>\n<td>\u0642\u0635\u064a\u0631 \u062c\u062f\u0627\u064b\u060c \u064a\u064f\u0631\u0643\u0651\u0628 \u0628\u064a\u0646 \u0641\u0644\u0646\u062c\u062a\u064a\u0646<\/td>\n<\/tr>\n<tr>\n<td>\u0641\u0627\u0642\u062f \u0627\u0644\u0636\u063a\u0637<\/td>\n<td>\u0645\u0646\u062e\u0641\u0636 \u0639\u0627\u062f\u0629<\/td>\n<td>\u0623\u0639\u0644\u0649 \u0646\u0633\u0628\u064a\u0627\u064b \u0628\u0633\u0628\u0628 \u0627\u0644\u0646\u0627\u0628\u0636<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u062a\u0631\u0643\u064a\u0628<\/td>\n<td>\u0623\u0641\u0642\u064a\u060c \u0623\u0648 \u0631\u0623\u0633\u064a \u0628\u062a\u062f\u0641\u0642 \u0635\u0627\u0639\u062f \u062d\u0633\u0628 \u0627\u0644\u0646\u0634\u0631\u0629<\/td>\n<td>\u0623\u0643\u062b\u0631 \u0645\u0631\u0648\u0646\u0629 \u062d\u0633\u0628 \u0627\u0644\u0646\u0634\u0631\u0629<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0634\u0627\u0626\u0639<\/td>\n<td>\u0637\u0631\u062f \u0627\u0644\u0645\u0636\u062e\u0627\u062a \u0648\u062e\u0637\u0648\u0637 \u0627\u0644\u062a\u063a\u0630\u064a\u0629<\/td>\n<td>\u0627\u0644\u0623\u0645\u0627\u0643\u0646 \u0627\u0644\u0636\u064a\u0642\u0629 \u0648\u0634\u0628\u0643\u0627\u062a \u0627\u0644\u0645\u064a\u0627\u0647<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>\u0645\u0648\u062f\u064a\u0644\u0627\u062a MECH<\/h2>\n<div class=\"fm-a-table\">\n<table>\n<caption>\u0627\u0644\u0642\u064a\u0645 \u0645\u0646 \u0635\u0641\u062d\u0627\u062a \u0627\u0644\u0645\u0646\u062a\u062c\u0627\u062a\u061b \u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u062c\u062f\u0648\u0644 \u0644\u0643\u0644 \u0645\u0642\u0627\u0633<\/caption>\n<thead>\n<tr>\n<th>\u0627\u0644\u0645\u0648\u062f\u064a\u0644<\/th>\n<th>\u0627\u0644\u0646\u0648\u0639<\/th>\n<th>\u0627\u0644\u0646\u0647\u0627\u064a\u0627\u062a<\/th>\n<th>\u0627\u0644\u0645\u0642\u0627\u0633\u0627\u062a<\/th>\n<th>\u0627\u0644\u0636\u063a\u0637<\/th>\n<th>\u0627\u0644\u0627\u0639\u062a\u0645\u0627\u062f<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>H44X2<\/td>\n<td>\u0645\u062a\u0623\u0631\u062c\u062d (\u0623\u062d\u0645\u0631)<\/td>\n<td>\u0641\u0644\u0646\u062c\u0629 <span dir=\"ltr\">ASME B16.1<\/span><\/td>\n<td><span dir=\"ltr\">2&#8243; \u2013 12&#8243;<\/span><\/td>\n<td><span dir=\"ltr\">300 \/ 363 PSI<\/span><\/td>\n<td>UL \/ FM \/ LPCB<\/td>\n<\/tr>\n<tr>\n<td>H84X<\/td>\n<td>\u0645\u062a\u0623\u0631\u062c\u062d (\u0623\u062d\u0645\u0631)<\/td>\n<td>\u0645\u062d\u0632\u0632 <span dir=\"ltr\">AWWA C606<\/span><\/td>\n<td><span dir=\"ltr\">2&#8243; \u2013 12&#8243;<\/span><\/td>\n<td><span dir=\"ltr\">300 \/ 363 PSI<\/span><\/td>\n<td>UL \/ FM \/ LPCB<\/td>\n<\/tr>\n<tr>\n<td>H44X2<\/td>\n<td>\u0645\u062a\u0623\u0631\u062c\u062d (\u0623\u0632\u0631\u0642) \u0648\u0641\u0642 <span dir=\"ltr\">AWWA C508<\/span><\/td>\n<td>\u0641\u0644\u0646\u062c\u0629 <span dir=\"ltr\">ASME B16.1 CL125<\/span><\/td>\n<td><span dir=\"ltr\">2&#8243; \u2013 12&#8243;<\/span><\/td>\n<td><span dir=\"ltr\">300 PSI<\/span><\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>DH77X<\/td>\n<td>\u0648\u064a\u0641\u0631 (\u0623\u0632\u0631\u0642)<\/td>\n<td>\u0628\u064a\u0646 \u0641\u0644\u0646\u062c\u062a\u064a\u0646 <span dir=\"ltr\">CL125 \/ CL150<\/span><\/td>\n<td><span dir=\"ltr\">2&#8243; \u2013 18&#8243;<\/span><\/td>\n<td><span dir=\"ltr\">300 PSI<\/span><\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>H12X-403A<\/td>\n<td>\u0646\u062d\u0627\u0633\u064a \u062f\u0627\u062e\u0644\u064a<\/td>\n<td>\u0645\u0633\u0646\u0646 <span dir=\"ltr\">ISO 228<\/span><\/td>\n<td><span dir=\"ltr\">1\/2&#8243; \u2013 2&#8243;<\/span><\/td>\n<td><span dir=\"ltr\">PN16<\/span><\/td>\n<td>\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u0627\u0644\u0645\u0648\u062f\u064a\u0644\u0627\u062a \u0627\u0644\u062d\u0645\u0631\u0627\u0621 \u0627\u0644\u0645\u0639\u062a\u0645\u062f\u0629 UL \/ FM \u0645\u062e\u0635\u0635\u0629 \u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062d\u0631\u064a\u0642\u060c \u0648\u0627\u0644\u0632\u0631\u0642\u0627\u0621 \u0648\u0627\u0644\u0646\u062d\u0627\u0633\u064a\u0629 \u0644\u0634\u0628\u0643\u0627\u062a \u0627\u0644\u0645\u064a\u0627\u0647 \u0648\u0627\u0644\u062e\u062f\u0645\u0627\u062a \u0627\u0644\u0639\u0627\u0645\u0629.<\/p>\n<h2>\u0646\u0642\u0627\u0637 \u0645\u0647\u0645\u0629 \u0639\u0646\u062f \u0627\u0644\u0637\u0644\u0628 \u0648\u0627\u0644\u062a\u0631\u0643\u064a\u0628<\/h2>\n<ol class=\"fm-a-steps\">\n<li>\u062d\u062f\u062f \u0627\u0644\u062e\u062f\u0645\u0629: \u0646\u0638\u0627\u0645 \u062d\u0631\u064a\u0642 \u064a\u062a\u0637\u0644\u0628 \u0645\u0648\u062f\u064a\u0644\u0627\u064b <a class=\"fm-il\" href=\"\/ar\/library\/ul-fm-approval-how-to-verify\/\">\u0645\u062f\u0631\u062c\u0627\u064b<\/a> \u0648\u0645\u0639\u062a\u0645\u062f\u0627\u064b\u060c \u0648\u0634\u0628\u0643\u0629 \u0645\u064a\u0627\u0647 \u0639\u0627\u0645\u0629 \u0644\u0647\u0627 \u062e\u064a\u0627\u0631\u0627\u062a \u0623\u0648\u0633\u0639.<\/li>\n<li>\u0627\u062e\u062a\u0631 \u0627\u0644\u0646\u0647\u0627\u064a\u0627\u062a \u062d\u0633\u0628 \u0627\u0644\u062e\u0637: \u0641\u0644\u0646\u062c\u0629 \u0623\u0648 \u0645\u062d\u0632\u0632\u0629 \u0623\u0648 \u0648\u064a\u0641\u0631 \u0628\u064a\u0646 \u0641\u0644\u0646\u062c\u062a\u064a\u0646.<\/li>\n<li>\u062a\u062d\u0642\u0642 \u0645\u0646 \u0636\u063a\u0637 \u0627\u0644\u0639\u0645\u0644 \u0644\u0644\u0645\u0642\u0627\u0633 \u0627\u0644\u0645\u0637\u0644\u0648\u0628 \u0641\u064a \u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u0646\u062a\u062c.<\/li>\n<li>\u0631\u0643\u0651\u0628 \u0627\u0644\u0645\u062d\u0628\u0633 \u0628\u062d\u064a\u062b \u064a\u0637\u0627\u0628\u0642 \u0627\u0644\u0633\u0647\u0645 \u0639\u0644\u0649 \u0627\u0644\u062c\u0633\u0645 \u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u062a\u062f\u0641\u0642.<\/li>\n<li>\u0627\u062a\u0631\u0643 \u0645\u0633\u0627\u0641\u0629 \u0645\u0633\u062a\u0642\u064a\u0645\u0629 \u0643\u0627\u0641\u064a\u0629 \u0642\u0628\u0644 \u0627\u0644\u0645\u062d\u0628\u0633 \u0648\u0628\u0639\u062f\u0647 \u062d\u0633\u0628 \u0646\u0634\u0631\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u060c \u0648\u062a\u062c\u0646\u0628 \u062a\u0631\u0643\u064a\u0628\u0647 \u0645\u0628\u0627\u0634\u0631\u0629 \u0628\u0639\u062f <a class=\"fm-il\" href=\"\/ar\/library\/grooved-elbows-guide\/\">\u0643\u0648\u0639<\/a> \u0623\u0648 \u0645\u0636\u062e\u0629 \u0625\u0646 \u0623\u0645\u0643\u0646.<\/li>\n<\/ol>\n<h2>\u0623\u062e\u0637\u0627\u0621 \u0634\u0627\u0626\u0639\u0629<\/h2>\n<ul>\n<li>\u062a\u0631\u0643\u064a\u0628 \u0627\u0644\u0645\u062d\u0628\u0633 \u0645\u0639\u0643\u0648\u0633 \u0627\u0644\u0627\u062a\u062c\u0627\u0647.<\/li>\n<li>\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u0648\u062f\u064a\u0644 \u063a\u064a\u0631 \u0645\u0639\u062a\u0645\u062f \u0641\u064a \u0646\u0638\u0627\u0645 \u062d\u0631\u064a\u0642.<\/li>\n<li>\u062a\u0631\u0643\u064a\u0628 \u0645\u062d\u0628\u0633 \u0648\u064a\u0641\u0631 \u0641\u064a \u0645\u0643\u0627\u0646 \u064a\u062a\u0637\u0644\u0628 \u0646\u0647\u0627\u064a\u0627\u062a \u0645\u062d\u0632\u0632\u0629 \u062f\u0648\u0646 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u062a\u0648\u0627\u0641\u0642.<\/li>\n<li>\u0625\u0647\u0645\u0627\u0644 \u0627\u0644\u0641\u062d\u0635 \u0627\u0644\u062f\u0648\u0631\u064a \u0644\u062d\u0631\u0643\u0629 \u0627\u0644\u0642\u0631\u0635 \u0648\u0627\u0644\u0645\u0642\u0639\u062f.<\/li>\n<\/ul>\n<div class=\"fm-a-key fm-a-related\">\n<p class=\"fm-a-key__t\">\u0627\u0642\u0631\u0623 \u0623\u064a\u0636\u0627\u064b \u0641\u064a \u0627\u0644\u0645\u0643\u062a\u0628\u0629 \u0627\u0644\u0641\u0646\u064a\u0629<\/p>\n<ul>\n<li><a href=\"\/ar\/library\/wet-alarm-check-valve-guide\/\">\u0645\u062d\u0628\u0633 \u0627\u0644\u0625\u0646\u0630\u0627\u0631 \u0627\u0644\u0631\u0637\u0628<\/a><\/li>\n<li><a href=\"\/ar\/library\/os-y-vs-nrs-gate-valves\/\">\u0645\u062d\u0628\u0633 OS&#038;Y \u0623\u0645 NRS\u061f<\/a><\/li>\n<li><a href=\"\/ar\/library\/y-strainer-guide\/\">\u0645\u0635\u0641\u0627\u0629 Y: \u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0648\u0627\u0644\u062a\u0646\u0638\u064a\u0641<\/a><\/li>\n<\/ul>\n<\/div>\n<section class=\"fm-a-faq\">\n<h2>\u0623\u0633\u0626\u0644\u0629 \u0634\u0627\u0626\u0639\u0629<\/h2>\n<details>\n<summary>\u0647\u0644 \u064a\u0645\u0643\u0646 \u062a\u0631\u0643\u064a\u0628 \u0645\u062d\u0628\u0633 \u0639\u062f\u0645 \u0627\u0644\u0631\u062c\u0648\u0639 \u0631\u0623\u0633\u064a\u0627\u064b\u061f<\/summary>\n<p>\u0628\u0639\u0636 \u0627\u0644\u0645\u0648\u062f\u064a\u0644\u0627\u062a \u062a\u0633\u0645\u062d \u0628\u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0627\u0644\u0631\u0623\u0633\u064a \u0628\u062a\u062f\u0641\u0642 \u0635\u0627\u0639\u062f. \u0627\u0631\u062c\u0639 \u0625\u0644\u0649 \u0646\u0634\u0631\u0629 \u0627\u0644\u0645\u0648\u062f\u064a\u0644 \u0648\u062d\u062f\u0648\u062f \u0627\u0644\u0625\u062f\u0631\u0627\u062c \u0642\u0628\u0644 \u0627\u0644\u062a\u0631\u0643\u064a\u0628.<\/p>\n<\/details>\n<details>\n<summary>\u0644\u0645\u0627\u0630\u0627 \u064a\u064f\u0631\u0643\u0651\u0628 \u0645\u062d\u0628\u0633 \u0639\u062f\u0645 \u0631\u062c\u0648\u0639 \u0639\u0644\u0649 \u0637\u0631\u062f \u0645\u0636\u062e\u0629 \u0627\u0644\u062d\u0631\u064a\u0642\u061f<\/summary>\n<p>\u0644\u0645\u0646\u0639 \u0631\u062c\u0648\u0639 \u0627\u0644\u0645\u0627\u0621 \u0645\u0646 \u0627\u0644\u0634\u0628\u0643\u0629 \u0625\u0644\u0649 \u0627\u0644\u0645\u0636\u062e\u0629 \u0639\u0646\u062f \u062a\u0648\u0642\u0641\u0647\u0627\u060c \u0648\u0644\u0644\u062d\u0641\u0627\u0638 \u0639\u0644\u0649 \u0627\u0645\u062a\u0644\u0627\u0621 \u0627\u0644\u0634\u0628\u0643\u0629 \u0648\u0636\u063a\u0637\u0647\u0627.<\/p>\n<\/details>\n<details>\n<summary>\u0645\u0627 \u0627\u0644\u0641\u0631\u0642 \u0628\u064a\u0646 \u0627\u0644\u0645\u0648\u062f\u064a\u0644 \u0627\u0644\u0623\u062d\u0645\u0631 \u0648\u0627\u0644\u0623\u0632\u0631\u0642\u061f<\/summary>\n<p>\u0627\u0644\u0623\u062d\u0645\u0631 \u0641\u064a \u0645\u0648\u062f\u064a\u0644\u0627\u062a MECH \u0645\u0639\u062a\u0645\u062f UL \/ FM \u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062d\u0631\u064a\u0642\u060c \u0648\u0627\u0644\u0623\u0632\u0631\u0642 \u0645\u0648\u062c\u0647 \u0644\u0634\u0628\u0643\u0627\u062a \u0627\u0644\u0645\u064a\u0627\u0647\u060c \u0645\u062b\u0644 H44X2 \u0627\u0644\u0623\u0632\u0631\u0642 \u0627\u0644\u0645\u0635\u0646\u0651\u0639 \u0648\u0641\u0642 AWWA C508.<\/p>\n<\/details>\n<details>\n<summary>\u0647\u0644 \u064a\u062d\u062a\u0627\u062c \u0627\u0644\u0645\u062d\u0628\u0633 \u0635\u064a\u0627\u0646\u0629\u061f<\/summary>\n<p>\u0646\u0639\u0645\u060c \u064a\u064f\u0641\u062d\u0635 \u0636\u0645\u0646 \u0628\u0631\u0646\u0627\u0645\u062c \u0627\u0644\u0641\u062d\u0635 \u0648\u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0648\u0627\u0644\u0635\u064a\u0627\u0646\u0629 \u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062d\u0631\u064a\u0642\u060c \u0648\u062a\u062a\u062d\u0642\u0642 \u0627\u0644\u0641\u062d\u0648\u0635\u0627\u062a \u0645\u0646 \u062d\u0631\u0643\u0629 \u0627\u0644\u0642\u0631\u0635 \u0648\u0633\u0644\u0627\u0645\u0629 \u0627\u0644\u0645\u0642\u0639\u062f.<\/p>\n<\/details>\n<\/section>\n<section class=\"fm-a-refs\">\n<h2>\u0627\u0644\u0645\u0631\u0627\u062c\u0639<\/h2>\n<ul>\n<li><b>NFPA 13<\/b> \u2014 Standard for the Installation of Sprinkler Systems.<\/li>\n<li><b>NFPA 20<\/b> \u2014 Installation of Stationary Pumps for Fire Protection.<\/li>\n<li><b>NFPA 25<\/b> \u2014 Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems.<\/li>\n<li><b>AWWA C508<\/b> \u2014 Swing-Check Valves for Waterworks Service.<\/li>\n<li>\u0628\u064a\u0627\u0646\u0627\u062a MECH \u0644\u0644\u0645\u0648\u062f\u064a\u0644\u0627\u062a H44X2 \u0648H84X \u0648DH77X \u0648H12X-403A \u0641\u064a \u0635\u0641\u062d\u0627\u062a \u0627\u0644\u0645\u0646\u062a\u062c\u0627\u062a \u0623\u062f\u0646\u0627\u0647.<\/li>\n<\/ul>\n<\/section>\n<p class=\"fm-a-disc\">\u0647\u0630\u0627 \u0627\u0644\u062f\u0644\u064a\u0644 \u0644\u0644\u062a\u0648\u0639\u064a\u0629 \u0627\u0644\u0641\u0646\u064a\u0629 \u0648\u0644\u0627 \u064a\u063a\u0646\u064a \u0639\u0646 \u0646\u0634\u0631\u0629 \u0627\u0644\u0645\u0635\u0646\u0639 \u0648\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u0645\u0635\u0645\u0645 \u0627\u0644\u0645\u0639\u062a\u0645\u062f \u0644\u0644\u0645\u0634\u0631\u0648\u0639.<\/p>\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>\u0643\u064a\u0641 \u064a\u0639\u0645\u0644 \u0645\u062d\u0628\u0633 \u0639\u062f\u0645 \u0627\u0644\u0631\u062c\u0648\u0639\u060c \u0648\u0627\u0644\u0641\u0631\u0642 \u0628\u064a\u0646 \u0627\u0644\u0645\u062a\u0623\u0631\u062c\u062d \u0648\u0627\u0644\u0648\u064a\u0641\u0631\u060c \u0648\u0623\u064a\u0646 \u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0641\u064a \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062d\u0631\u064a\u0642\u060c \u0648\u0645\u0642\u0627\u0631\u0646\u0629 \u0645\u0648\u062f\u064a\u0644\u0627\u062a MECH.<\/p>\n","protected":false},"author":1,"featured_media":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"rank_math_focus_keyword":"\u0645\u062d\u0628\u0633 \u0639\u062f\u0645 \u0627\u0644\u0631\u062c\u0648\u0639,check valve","rank_math_description":"","footnotes":""},"guide_topic":[221],"class_list":["post-6044","guide","type-guide","status-publish","hentry","guide_topic-valves"],"acf":{"fmg_reviewer":"","fmg_reviewer_source":{"label":"\u0631\u0627\u062c\u0639\u0647 \u0641\u0646\u064a\u0627\u064b","type":"text","formatted_value":""},"fmg_reviewed":null,"fmg_reviewed_source":{"label":"\u062a\u0627\u0631\u064a\u062e \u0627\u0644\u0645\u0631\u0627\u062c\u0639\u0629","type":"date_picker","formatted_value":null},"fmg_products":[2451,2454,2651,2657,2786],"fmg_products_source":{"label":"\u0645\u0646\u062a\u062c\u0627\u062a \u0645\u0631\u062a\u0628\u0637\u0629 \u0628\u0627\u0644\u0645\u0642\u0627\u0644","type":"relationship","formatted_value":[2451,2454,2651,2657,2786]}},"_links":{"self":[{"href":"https:\/\/fu-mech.com\/ar\/wp-json\/wp\/v2\/guide\/6044","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fu-mech.com\/ar\/wp-json\/wp\/v2\/guide"}],"about":[{"href":"https:\/\/fu-mech.com\/ar\/wp-json\/wp\/v2\/types\/guide"}],"author":[{"embeddable":true,"href":"https:\/\/fu-mech.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":4,"href":"https:\/\/fu-mech.com\/ar\/wp-json\/wp\/v2\/guide\/6044\/revisions"}],"predecessor-version":[{"id":6100,"href":"https:\/\/fu-mech.com\/ar\/wp-json\/wp\/v2\/guide\/6044\/revisions\/6100"}],"acf:post":[{"embeddable":true,"href":"https:\/\/fu-mech.com\/ar\/wp-json\/wp\/v2\/product\/2786"},{"embeddable":true,"href":"https:\/\/fu-mech.com\/ar\/wp-json\/wp\/v2\/product\/2657"},{"embeddable":true,"href":"https:\/\/fu-mech.com\/ar\/wp-json\/wp\/v2\/product\/2651"},{"embeddable":true,"href":"https:\/\/fu-mech.com\/ar\/wp-json\/wp\/v2\/product\/2454"},{"embeddable":true,"href":"https:\/\/fu-mech.com\/ar\/wp-json\/wp\/v2\/product\/2451"}],"wp:attachment":[{"href":"https:\/\/fu-mech.com\/ar\/wp-json\/wp\/v2\/media?parent=6044"}],"wp:term":[{"taxonomy":"guide_topic","embeddable":true,"href":"https:\/\/fu-mech.com\/ar\/wp-json\/wp\/v2\/guide_topic?post=6044"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}