{"id":2745,"date":"2026-07-13T08:08:06","date_gmt":"2026-07-13T08:08:06","guid":{"rendered":"https:\/\/www.tgvalve.com\/?p=2745"},"modified":"2026-07-29T15:31:07","modified_gmt":"2026-07-29T15:31:07","slug":"check-valve-backflow-prevention","status":"publish","type":"post","link":"https:\/\/www.tgvalve.com\/zh\/blog\/check-valve\/check-valve-backflow-prevention\/","title":{"rendered":"\u4ec0\u4e48\u539f\u56e0\u5bfc\u81f4\u6b62\u56de\u9600\u56de\u6d41\u4ee5\u53ca\u5982\u4f55\u9884\u9632"},"content":{"rendered":"

\u6b62\u56de\u9600\u56de\u6d41\u662f\u6307\u6d41\u4f53\u901a\u8fc7\u672c\u5e94\u963b\u6b62\u5176\u6d41\u52a8\u7684\u6b62\u56de\u9600\u65f6\u53d1\u751f\u53cd\u5411\u6d41\u52a8\u3002\u6b62\u56de\u9600\u7c7b\u578b\u4e0d\u5339\u914d\u3001\u9600\u5ea7\u6216\u9600\u74e3\u78e8\u635f\u3001\u5c3a\u5bf8\u4e0d\u5408\u9002\u7b49\u4efb\u4f55\u539f\u56e0\u90fd\u53ef\u80fd\u5bfc\u81f4\u56de\u6d41\u3002\u5728\u6cf5\u6392\u653e\u7ba1\u8def\u3001\u9505\u7089\u7ed9\u6c34\u7cfb\u7edf\u548c\u5316\u5b66\u836f\u5242\u6ce8\u5165\u56de\u8def\u4e2d\uff0c\u56de\u6d41\u4e0d\u4ec5\u4ec5\u662f\u6548\u7387\u95ee\u9898\uff0c\u5b83\u8fd8\u4f1a\u9020\u6210\u5b89\u5168\u9690\u60a3\u548c\u8bbe\u5907\u635f\u574f\u3002\u4e86\u89e3\u56de\u6d41\u7684\u6210\u56e0\u662f\u9884\u9632\u56de\u6d41\u7684\u5173\u952e\u3002.<\/p>\n\n\n\n

\u4ec0\u4e48\u662f\u56de\u6d41\uff1f\u4e3a\u4ec0\u4e48\u5b83\u5f88\u91cd\u8981\uff1f<\/h2>\n\n\n\n

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\u5355\u5411\u9600\u56de\u6d41\u7684\u5e38\u89c1\u539f\u56e0<\/h2>\n\n\n\n
\"\u5355\u5411\u9600\u56de\u6d41\u7684\u5e38\u89c1\u539f\u56e0\"<\/figure>\n\n\n\n

\u5927\u591a\u6570\u6b62\u56de\u9600\u56de\u6d41\u4e8b\u4ef6\u53ef\u8ffd\u6eaf\u5230\u4ee5\u4e0b\u56db\u4e2a\u6839\u672c\u539f\u56e0\u4e4b\u4e00\u3002.<\/p>\n\n\n\n

\u9600\u95e8\u7c7b\u578b\u4e0e\u5e94\u7528\u4e0d\u7b26\u3002.<\/strong> \u5b89\u88c5\u5728\u8109\u52a8\u6d41\u7cfb\u7edf\u6216\u5782\u76f4\u5411\u4e0b\u6d41\u7ba1\u8def\u4e2d\u7684\u65cb\u542f\u5f0f\u6b62\u56de\u9600\u65e0\u6cd5\u53ef\u9760\u5173\u95ed\u3002\u65cb\u542f\u5f0f\u6b62\u56de\u9600\u4f9d\u9760\u91cd\u529b\u548c\u53cd\u5411\u6d41\u538b\u6765\u5173\u95ed\u3002\u5982\u679c\u5728\u4e0b\u4e00\u4e2a\u6b63\u5411\u8109\u51b2\u5230\u6765\u4e4b\u524d\uff0c\u6d41\u901f\u4e0d\u8db3\u4ee5\u4ea7\u751f\u8db3\u591f\u7684\u53cd\u5411\u538b\u529b\uff0c\u9600\u74e3\u5c31\u65e0\u6cd5\u5b8c\u5168\u5173\u95ed\uff0c\u4ece\u800c\u5bfc\u81f4\u8109\u51b2\u95f4\u51fa\u73b0\u56de\u6d41\u3002\u9002\u7528\u4e8e\u8109\u52a8\u6d41\u7cfb\u7edf\u7684\u6b63\u786e\u9009\u62e9\u662f\u4e3b\u52a8\u5173\u95ed\u800c\u975e\u88ab\u52a8\u5173\u95ed\u7684\u5f39\u7c27\u5f0f\u6b62\u56de\u9600\u3002.<\/p>\n\n\n\n

\u9600\u95e8\u5c3a\u5bf8\u8fc7\u5c0f\u3002.<\/strong> \u5c3a\u5bf8\u8fc7\u5c0f\u7684\u6b62\u56de\u9600\u5728\u9ad8\u4e8e\u8bbe\u8ba1\u6d41\u901f\u7684\u60c5\u51b5\u4e0b\u8fd0\u884c\u3002\u9ad8\u6d41\u901f\u4f1a\u5bfc\u81f4\u9600\u74e3\u90e8\u5206\u5f00\u542f\uff0c\u7d27\u8d34\u9600\u5ea7\u3002\u9600\u74e3\u4f1a\u53d1\u751f\u98a4\u52a8\u800c\u975e\u7d27\u5bc6\u8d34\u5408\u3002\u8fd9\u79cd\u98a4\u52a8\u4f1a\u5bfc\u81f4\u6b62\u56de\u9600\u6296\u52a8\uff0c\u52a0\u901f\u9600\u5ea7\u548c\u9600\u74e3\u7684\u78e8\u635f\uff0c\u6700\u7ec8\u5bfc\u81f4\u9600\u5ea7\u8868\u9762\u65e0\u6cd5\u6709\u6548\u5bc6\u5c01\u4ee5\u62b5\u6297\u53cd\u5411\u538b\u529b\u3002\u7531\u8fc7\u5927\u6d41\u901f\u5f15\u8d77\u7684\u9600\u74e3\u98a4\u52a8\u662f\u9020\u6210\u5927\u591a\u6570\u6296\u52a8\u5931\u6548\u7684\u6839\u672c\u539f\u56e0\u3002.<\/p>\n\n\n\n

\u5ea7\u6905\u548c\u789f\u7247\u78e8\u635f\u6216\u635f\u574f\u3002.<\/strong> \u9600\u5ea7\u548c\u9600\u74e3\u4f1a\u56e0\u6b63\u5e38\u5faa\u73af\u3001\u6d41\u4f53\u4e2d\u9897\u7c92\u7269\u7684\u4fb5\u8680\u6216\u4e0d\u76f8\u5bb9\u6d41\u4f53\u5316\u5b66\u6027\u8d28\u7684\u8150\u8680\u800c\u9010\u6e10\u78e8\u635f\u3002\u78e8\u635f\u7684\u9600\u5ea7\u4f1a\u5bfc\u81f4\u6d41\u4f53\u5373\u4f7f\u5728\u9600\u74e3\u5173\u95ed\u65f6\u4e5f\u80fd\u7ed5\u8fc7\u9600\u74e3\u3002\u635f\u574f\u7684\u9600\u74e3\u5219\u65e0\u6cd5\u4e0e\u9600\u5ea7\u5f62\u6210\u5b8c\u5168\u5bc6\u5c01\u3002\u8fd9\u4e24\u79cd\u60c5\u51b5\u90fd\u4f1a\u5bfc\u81f4\u6b62\u56de\u9600\u56de\u6d41\uff0c\u8868\u9762\u4e0a\u770b\u50cf\u662f\u7a81\u7136\u5931\u6548\uff0c\u4f46\u5b9e\u9645\u4e0a\u662f\u9600\u95e8\u4f7f\u7528\u5bff\u547d\u671f\u95f4\u9010\u6e10\u5f62\u6210\u7684\u3002.<\/p>\n\n\n\n

\u5b89\u88c5\u65b9\u5411\u9519\u8bef\u3002.<\/strong> \u65cb\u542f\u5f0f\u6b62\u56de\u9600\u548c\u5347\u964d\u5f0f\u6b62\u56de\u9600\u5bf9\u5b89\u88c5\u65b9\u5411\u6709\u7279\u5b9a\u7684\u8981\u6c42\u3002\u5b89\u88c5\u5728\u5782\u76f4\u5411\u4e0b\u8f93\u6db2\u7ba1\u7ebf\u4e0a\u7684\u65cb\u542f\u5f0f\u6b62\u56de\u9600\u65e0\u6cd5\u6b63\u5e38\u5de5\u4f5c\uff0c\u56e0\u4e3a\u91cd\u529b\u4f1a\u963b\u788d\u9600\u74e3\u5173\u95ed\uff0c\u800c\u4e0d\u662f\u5e2e\u52a9\u5176\u5173\u95ed\u3002\u6c34\u5e73\u5b89\u88c5\u7684\u5347\u964d\u5f0f\u6b62\u56de\u9600\uff0c\u5176\u9600\u74e3\u76f8\u5bf9\u4e8e\u91cd\u529b\u7684\u8fd0\u52a8\u65b9\u5411\u53ef\u80fd\u4e0e\u91cd\u529b\u65b9\u5411\u4e0d\u4e00\u81f4\uff0c\u4ece\u800c\u5bfc\u81f4\u65e0\u6cd5\u53ef\u9760\u5173\u95ed\u3002.<\/p>\n\n\n\n

\u5982\u4f55\u9632\u6b62\u56de\u6d41\u6545\u969c<\/h2>\n\n\n\n

\u6b62\u56de\u9600\u6296\u52a8\u548c\u56de\u6d41 \u9600\u95e8\u9009\u62e9\u9519\u8bef<\/a> \u8fd9\u4e9b\u95ee\u9898\u5728\u89c4\u8303\u5236\u5b9a\u9636\u6bb5\u662f\u53ef\u4ee5\u907f\u514d\u7684\u3002\u6b63\u786e\u7684\u505a\u6cd5\u662f\u5728\u9009\u62e9\u9600\u95e8\u7c7b\u578b\u4e4b\u524d\uff0c\u5148\u660e\u786e\u5b9e\u9645\u7684\u6d41\u91cf\u6761\u4ef6\u3002.<\/p>\n\n\n\n

\u786e\u5b9a\u7ba1\u7ebf\u4e2d\u7684\u6700\u5c0f\u548c\u6700\u5927\u6d41\u901f\u3002. <\/strong>\u6b62\u56de\u9600\u9700\u8981\u4e00\u5b9a\u7684\u6700\u5c0f\u524d\u8fdb\u6d41\u901f\u624d\u80fd\u4fdd\u6301\u9600\u74e3\u5f00\u542f\uff0c\u5e76\u4e14\u9700\u8981\u53ef\u63a7\u7684\u51cf\u901f\u624d\u80fd\u5728\u5173\u95ed\u65f6\u907f\u514d\u51b2\u51fb\u3002\u5982\u679c\u7ba1\u9053\u7ecf\u5e38\u4f4e\u4e8e\u9600\u95e8\u5c3a\u5bf8\u5bf9\u5e94\u7684\u6700\u5c0f\u6d41\u901f\u8fd0\u884c\uff0c\u5219\u4f1a\u4ea7\u751f\u98a4\u52a8\u5e76\u5bfc\u81f4\u9600\u5ea7\u8fc7\u65e9\u78e8\u635f\u3002\u6b62\u56de\u9600\u8fd0\u884c\u7684\u6700\u5c0f\u6d41\u901f\u662f\u9600\u95e8\u5236\u9020\u5546\u9488\u5bf9\u6bcf\u79cd\u8bbe\u8ba1\u548c\u5b54\u5f84\u5c3a\u5bf8\u63d0\u4f9b\u7684\u89c4\u683c\u53c2\u6570\u3002.<\/p>\n\n\n\n

\u5b89\u88c5\u524d\u8bf7\u786e\u8ba4\u5b89\u88c5\u65b9\u5411\u662f\u5426\u7b26\u5408\u8981\u6c42\u3002.<\/strong> \u65cb\u542f\u5f0f\u6b62\u56de\u9600\u9002\u7528\u4e8e\u6c34\u5e73\u7ba1\u8def\u3002\u5f39\u7c27\u5f0f\u6b62\u56de\u9600\u9002\u7528\u4e8e\u4efb\u4f55\u5b89\u88c5\u65b9\u5411\u3002\u503e\u659c\u5f0f\u9600\u74e3\u6b62\u56de\u9600\u9002\u7528\u4e8e\u9ad8\u901f\u6c34\u5e73\u548c\u5782\u76f4\u5411\u4e0a\u6d41\u52a8\u3002\u9600\u95e8\u8bbe\u8ba1\u5e94\u6839\u636e\u5b9e\u9645\u5b89\u88c5\u65b9\u5411\u9009\u62e9\uff0c\u800c\u975e\u5176\u901a\u7528\u5e94\u7528\u7c7b\u522b\u3002.<\/p>\n\n\n\n

\u9009\u62e9\u4e0e\u5de5\u827a\u6d41\u4f53\u76f8\u5bb9\u7684\u6750\u6599\u3002. <\/strong>\u6d41\u4f53\u5316\u5b66\u6210\u5206\u4e0d\u76f8\u5bb9\u5bfc\u81f4\u7684\u76d8\u7247\u6216\u9600\u5ea7\u8150\u8680\uff0c\u5176\u5931\u6548\u6a21\u5f0f\u4e0e\u673a\u68b0\u78e8\u635f\u76f8\u540c\uff0c\u4f46\u901f\u5ea6\u66f4\u5feb\u4e14\u66f4\u96be\u4ee5\u9884\u6d4b\u3002\u5e94\u5728\u5b9e\u9645\u5de5\u4f5c\u6e29\u5ea6\u4e0b\uff0c\u6839\u636e\u5b9e\u9645\u6d41\u4f53\u5316\u5b66\u6210\u5206\u68c0\u67e5\u9600\u4f53\u6750\u6599\u3001\u76d8\u7247\u6750\u6599\u548c\u9600\u5ea7\u6750\u6599\u3002.<\/p>\n\n\n\n

\u6b62\u56de\u9600\u56de\u6d41\u548c\u6b62\u56de\u9600\u6cc4\u6f0f\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/h3>\n\n\n\n

\u56de\u6d41\u662f\u6307\u6d41\u4f53\u9006\u6d41\u901a\u8fc7\u672a\u80fd\u5173\u95ed\u6216\u5bc6\u5c01\u7684\u6b62\u56de\u9600\u3002\u6cc4\u6f0f\u662f\u6307\u5c11\u91cf\u6d41\u4f53\u901a\u8fc7\u5bc6\u5c01\u9762\u635f\u574f\u6216\u78e8\u635f\u7684\u3001\u540d\u4e49\u4e0a\u5173\u95ed\u7684\u9600\u95e8\u3002\u56de\u6d41\u901a\u5e38\u6d89\u53ca\u5927\u91cf\u7684\u9006\u6d41\u3002\u6cc4\u6f0f\u5219\u5c5e\u4e8e\u8f83\u5c0f\u91cf\u7684\u5bc6\u5c01\u5931\u6548\u3002\u4e24\u8005\u90fd\u8868\u660e\u9600\u95e8\u6027\u80fd\u4e0d\u7b26\u5408\u89c4\u683c\uff0c\u4f46\u5b83\u4eec\u7684\u6839\u672c\u539f\u56e0\u548c\u7ef4\u4fee\u65b9\u6848\u4e0d\u540c\u3002.<\/p>\n\n\n\n

\u4f55\u65f6\u66f4\u6362\uff0c\u4f55\u65f6\u7ef4\u4fee<\/h2>\n\n\n\n

\u5e76\u975e\u6bcf\u6b21\u6b62\u56de\u9600\u56de\u6d41\u4e8b\u4ef6\u90fd\u9700\u8981\u66f4\u6362\u9600\u95e8\u3002\u5177\u4f53\u60c5\u51b5\u53d6\u51b3\u4e8e\u6545\u969c\u539f\u56e0\u3002.<\/p>\n\n\n\n

\u6b63\u5e38\u5faa\u73af\u6216\u8f7b\u5fae\u4fb5\u8680\u9020\u6210\u7684\u9600\u5ea7\u548c\u9600\u74e3\u78e8\u635f\uff0c\u6709\u65f6\u53ef\u4ee5\u901a\u8fc7\u7814\u78e8\u9600\u5ea7\u548c\u9600\u74e3\u8868\u9762\u6765\u6062\u590d\u5176\u5bc6\u5c01\u51e0\u4f55\u5f62\u72b6\u3002\u5bf9\u4e8e\u66f4\u6362\u6210\u672c\u8f83\u9ad8\u7684\u8f83\u5927\u9600\u95e8\uff0c\u8fd9\u79cd\u65b9\u6cd5\u5c24\u5176\u9002\u7528\uff0c\u56e0\u4e3a\u78e8\u635f\u4ec5\u9650\u4e8e\u8868\u9762\u800c\u975e\u5c3a\u5bf8\u5c42\u9762\u3002.<\/p>\n\n\n\n

\u9600\u7247\u6216\u9600\u5ea7\u7684\u8150\u8680\u635f\u574f\u3001\u88c2\u7eb9\u6216\u5c3a\u5bf8\u53d8\u5f62\u5747\u9700\u66f4\u6362\u90e8\u4ef6\u3002\u5c1d\u8bd5\u7814\u78e8\u8150\u8680\u6216\u5f00\u88c2\u7684\u9600\u5ea7\u8868\u9762\u53ea\u80fd\u6682\u65f6\u6539\u5584\u5bc6\u5c01\u6027\u80fd\uff0c\u5f88\u5feb\u5c31\u4f1a\u518d\u6b21\u5931\u6548\u3002\u5e94\u4f7f\u7528\u9002\u7528\u4e8e\u8be5\u5de5\u51b5\u7684\u6b63\u786e\u6750\u6599\u66f4\u6362\u53d7\u5f71\u54cd\u7684\u90e8\u4ef6\u3002.<\/p>\n\n\n\n

\u9600\u95e8\u7c7b\u578b\u9519\u8bef\u5c5e\u4e8e\u8bbe\u8ba1\u7f3a\u9677\uff0c\u800c\u975e\u7ef4\u62a4\u95ee\u9898\u3002\u5982\u679c\u6b62\u56de\u9600\u53d1\u51fa\u5494\u55d2\u58f0\u662f\u56e0\u4e3a\u9600\u95e8\u5c3a\u5bf8\u8fc7\u5c0f\u6216\u89c4\u683c\u4e0e\u6d41\u91cf\u6761\u4ef6\u4e0d\u7b26\uff0c\u7814\u78e8\u9600\u5ea7\u5e76\u4e0d\u80fd\u89e3\u51b3\u95ee\u9898\u3002\u5fc5\u987b\u66f4\u6362\u4e3a\u9002\u5408\u5b9e\u9645\u5de5\u51b5\u7684\u6b63\u786e\u7c7b\u578b\u548c\u5c3a\u5bf8\u7684\u9600\u95e8\u3002.<\/p>\n\n\n\n

CTGV\u7684\u4ea7\u54c1\u7cfb\u5217 \u65cb\u542f\u5f0f\u6b62\u56de\u9600<\/a> \u548c \u5347\u964d\u6b62\u56de\u9600<\/a> \u6309\u7167 API 6D\u3001API 594 \u548c ASME B16.34 \u6807\u51c6\u5236\u9020\uff0c\u538b\u529b\u7b49\u7ea7\u4ece 150 \u7ea7\u5230 4500 \u7ea7\u3002, \u6750\u6599\u9009\u62e9<\/a> \u4ea7\u54c1\u6db5\u76d6\u78b3\u94a2\u3001316\u4e0d\u9508\u94a2\u4ee5\u53ca\u9002\u7528\u4e8e\u8150\u8680\u6027\u548c\u9ad8\u6e29\u73af\u5883\u7684\u5168\u7cfb\u5217\u5408\u91d1\u6750\u8d28\u3002CTGV\u7684\u5de5\u7a0b\u652f\u6301\u80fd\u591f\u5e2e\u52a9\u60a8\u7406\u89e3\u6b62\u56de\u9600\u548c\u5355\u5411\u9600\u7684\u672f\u8bed\uff0c\u5e76\u4e3a\u7279\u5b9a\u5e94\u7528\u9009\u62e9\u5408\u9002\u7684\u9600\u578b\u3002\u8054\u7cfb\u6211\u4eec\uff0c\u5373\u53ef\u57282\u5c0f\u65f6\u5185\u83b7\u5f97\u6280\u672f\u5efa\u8bae\u3002.<\/p>\n\n\n\n

\u5e38\u89c1\u95ee\u9898<\/h2>\n\n\n\n

\u4ec0\u4e48\u539f\u56e0\u4f1a\u5bfc\u81f4\u6b62\u56de\u9600\u56de\u6d41\uff1f<\/h3>\n\n\n\n

\u9600\u95e8\u7c7b\u578b\u4e0d\u5339\u914d\u3001\u9600\u95e8\u5c3a\u5bf8\u8fc7\u5c0f\u5bfc\u81f4\u9600\u74e3\u6296\u52a8\u3001\u9600\u5ea7\u548c\u9600\u74e3\u8868\u9762\u78e8\u635f\u6216\u635f\u574f\uff0c\u6216\u8005\u5b89\u88c5\u65b9\u5411\u9519\u8bef\uff0c\u90fd\u4f1a\u5bfc\u81f4\u9600\u95e8\u51fa\u73b0\u672c\u5e94\u963b\u6b62\u7684\u9006\u6d41\uff0c\u6bcf\u79cd\u539f\u56e0\u90fd\u4f1a\u5bfc\u81f4\u4e0d\u540c\u7684\u7ef4\u4fee\u548c\u66f4\u6362\u65b9\u6848\u3002.<\/p>\n\n\n\n

\u4ec0\u4e48\u662f\u6b62\u56de\u9600\u98a4\u52a8\uff1f<\/h3>\n\n\n\n

\u5f53\u6d41\u901f\u4f4e\u4e8e\u4f7f\u6b62\u56de\u9600\u74e3\u5b8c\u5168\u6253\u5f00\u6240\u9700\u7684\u6700\u5c0f\u6d41\u901f\u65f6\uff0c\u6b62\u56de\u9600\u74e3\u4f1a\u5feb\u901f\u5f00\u542f\u548c\u5173\u95ed\u3002\u8fd9\u79cd\u6296\u52a8\u4f1a\u5bfc\u81f4\u9600\u5ea7\u548c\u9600\u74e3\u52a0\u901f\u78e8\u635f\u3001\u4ea7\u751f\u566a\u97f3\uff0c\u6700\u7ec8\u8fd8\u4f1a\u635f\u574f\u9600\u5ea7\u8868\u9762\uff0c\u5373\u4f7f\u6d41\u901f\u6539\u5584\uff0c\u4e5f\u4f1a\u5bfc\u81f4\u56de\u6d41\u3002.<\/p>\n\n\n\n

\u6b62\u56de\u9600\u548c\u5355\u5411\u9600\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/h3>\n\n\n\n

\u8fd9\u4e24\u4e2a\u672f\u8bed\u90fd\u63cf\u8ff0\u4e86\u9632\u6b62\u9006\u6d41\u7684\u9600\u95e8\u3002\u6b62\u56de\u9600\u662f\u4e00\u4e2a\u66f4\u5e7f\u6cdb\u7684\u529f\u80fd\u7c7b\u522b\uff0c\u6db5\u76d6\u6240\u6709\u963b\u6b62\u56de\u6d41\u7684\u88c5\u7f6e\u3002\u6b62\u56de\u9600\u662f\u5de5\u4e1a\u7ba1\u9053\u4e2d\u6700\u5e38\u7528\u7684\u5177\u4f53\u7c7b\u578b\u3002\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u5de5\u7a0b\u5e08\u4f1a\u4ea4\u66ff\u4f7f\u7528\u8fd9\u4e24\u4e2a\u672f\u8bed\u3002.<\/p>\n\n\n\n

\u5982\u4f55\u5224\u65ad\u6211\u7684\u6b62\u56de\u9600\u662f\u5426\u6f0f\u6c34\u6216\u5b58\u5728\u56de\u6d41\u73b0\u8c61\uff1f<\/h3>\n\n\n\n

\u6cc4\u6f0f\u662f\u6307\u9600\u95e8\u5728\u540d\u4e49\u4e0a\u5173\u95ed\u7684\u60c5\u51b5\u4e0b\u53d1\u751f\u5c11\u91cf\u9600\u5ea7\u5931\u6548\u3002\u56de\u6d41\u662f\u6307\u9600\u95e8\u672a\u80fd\u5173\u95ed\u6216\u5bc6\u5c01\u65f6\u53d1\u751f\u5927\u91cf\u53cd\u5411\u6d41\u52a8\u3002\u4e24\u8005\u75c7\u72b6\u4e0d\u540c\uff1a\u6cc4\u6f0f\u8868\u73b0\u4e3a\u4e0b\u6e38\u538b\u529b\u7f13\u6162\u4e0b\u964d\uff0c\u800c\u56de\u6d41\u8868\u73b0\u4e3a\u6cf5\u53cd\u8f6c\u6216\u4e0a\u6e38\u6c61\u67d3\u3002.<\/p>\n\n\n\n

\n
\u83b7\u53d6\u514d\u8d39\u62a5\u4ef7<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Check valve backflow happens when fluid reverses direction through a check valve that should have prevented it. Wrong valve type for the application. Worn seat or [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":2746,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38],"tags":[],"class_list":["post-2745","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-check-valve"],"_links":{"self":[{"href":"https:\/\/www.tgvalve.com\/zh\/wp-json\/wp\/v2\/posts\/2745","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tgvalve.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tgvalve.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tgvalve.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tgvalve.com\/zh\/wp-json\/wp\/v2\/comments?post=2745"}],"version-history":[{"count":1,"href":"https:\/\/www.tgvalve.com\/zh\/wp-json\/wp\/v2\/posts\/2745\/revisions"}],"predecessor-version":[{"id":2748,"href":"https:\/\/www.tgvalve.com\/zh\/wp-json\/wp\/v2\/posts\/2745\/revisions\/2748"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tgvalve.com\/zh\/wp-json\/wp\/v2\/media\/2746"}],"wp:attachment":[{"href":"https:\/\/www.tgvalve.com\/zh\/wp-json\/wp\/v2\/media?parent=2745"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tgvalve.com\/zh\/wp-json\/wp\/v2\/categories?post=2745"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tgvalve.com\/zh\/wp-json\/wp\/v2\/tags?post=2745"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}