{"id":677,"date":"2026-07-23T16:08:13","date_gmt":"2026-07-23T08:08:13","guid":{"rendered":"https:\/\/www.bihec.com\/okeefe\/?p=677"},"modified":"2026-07-23T16:08:13","modified_gmt":"2026-07-23T08:08:13","slug":"okeefe%e7%b2%be%e5%af%86%e9%87%91%e5%b1%9e%e8%8a%82%e6%b5%81%e5%ad%94-npt%e5%86%85%e5%a4%96%e4%b8%9d%e8%bd%ac%e6%8e%a5%e5%a4%b4-%e9%bb%84%e9%93%9c%e6%9d%90%e8%b4%a8","status":"publish","type":"post","link":"https:\/\/www.bihec.com\/okeefe\/okeefe%e7%b2%be%e5%af%86%e9%87%91%e5%b1%9e%e8%8a%82%e6%b5%81%e5%ad%94-npt%e5%86%85%e5%a4%96%e4%b8%9d%e8%bd%ac%e6%8e%a5%e5%a4%b4-%e9%bb%84%e9%93%9c%e6%9d%90%e8%b4%a8\/","title":{"rendered":"O&#8217;keefe\u7cbe\u5bc6\u91d1\u5c5e\u8282\u6d41\u5b54 \u2014 NPT\u5185\u5916\u4e1d\u8f6c\u63a5\u5934 \u9ec4\u94dc\u6750\u8d28 \u8282\u6d41\u5b54\u5f840.004 \u82f1\u5bf8\uff5e0.125 \u82f1\u5bf8"},"content":{"rendered":"<div>\n<h1><a href=\"https:\/\/www.bihec.com\/okeefe\/tag\/%e7%b2%be%e5%af%86%e9%87%91%e5%b1%9e%e8%8a%82%e6%b5%81%e5%ad%94\/\" title=\"View all posts in \u7cbe\u5bc6\u91d1\u5c5e\u8282\u6d41\u5b54\" target=\"_blank\">\u7cbe\u5bc6\u91d1\u5c5e\u8282\u6d41\u5b54<\/a> \u2014 NPT \u5185\u5916\u4e1d<a href=\"https:\/\/www.bihec.com\/okeefe\/tag\/%e8%bd%ac%e6%8e%a5%e5%a4%b4\/\" title=\"View all posts in \u8f6c\u63a5\u5934\" target=\"_blank\">\u8f6c\u63a5\u5934<\/a><\/h1>\n<\/div>\n<div>\n<div>\u91c7\u7528\u5b9e\u5fc3\u91d1\u5c5e\u4e00\u4f53\u6210\u578b\u7ed3\u6784\u3002<a href=\"https:\/\/www.bihec.com\/okeefe\/tag\/%e8%8a%82%e6%b5%81%e5%ad%94\/\" title=\"View all posts in \u8282\u6d41\u5b54\" target=\"_blank\">\u8282\u6d41\u5b54<\/a>\u7ecf\u8fc7\u7cbe\u5bc6\u673a\u52a0\u5de5\u3001\u5f7b\u5e95\u6e05\u6d01\uff0c\u5e76\u6309\u7167\u4e25\u82db\u6807\u51c6\u5b8c\u6210\u6d41\u91cf\u6d4b\u8bd5\u3002\u8282\u6d41<a href=\"https:\/\/www.bihec.com\/okeefe\/tag\/%e5%ad%94%e5%be%84\/\" title=\"View all posts in \u5b54\u5f84\" target=\"_blank\">\u5b54\u5f84<\/a>\u89c4\u683c\u8303\u56f4\uff1a0.004 \u82f1\u5bf8\uff5e0.125 \u82f1\u5bf8\uff0c\u53ef\u5b9a\u5236\u7279\u6b8a\u89c4\u683c\u3002<\/div>\n<div><\/div>\n<\/div>\n<div>\u5168\u90e8\u4e3a\u9ec4\u94dc\u6750\u8d28\uff0c\u6700\u5927\u627f\u538b 2000 psig\uff0c\u65e0\u5185\u7f6e\u6ee4\u7f51\uff0c\u6d41\u91cf\u6570\u636e\u4e3a\u901a\u7528\u6807\u51c6\u503c\u3002<\/div>\n<div><\/div>\n<div>\n<div>\n<table>\n<thead>\n<tr>\n<th>\u96f6\u4ef6\u578b\u53f7<\/th>\n<th>\u8282\u6d41\u5b54\u5b54\u5f84<\/th>\n<th>\u6750\u8d28<\/th>\n<th>\u6d41\u91cf\u7cfb\u6570<span class=\"container-wTfUs6 math-inline\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">C<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mathnormal mtight\">V<\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/th>\n<th><a href=\"https:\/\/www.bihec.com\/okeefe\/tag\/%e6%8e%a5%e5%a4%b4\/\" title=\"View all posts in \u63a5\u5934\" target=\"_blank\">\u63a5\u5934<\/a>\u6700\u5927\u627f\u538b<\/th>\n<th>\u6d41\u91cf\u6570\u636e\u72b6\u6001<\/th>\n<th>\u5185\u7f6e\u6ee4\u7f51<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>D-4-BR<\/td>\n<td>0.0039 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.00035<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-5-BR<\/td>\n<td>0.0051 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.00061<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-6-BR<\/td>\n<td>0.0059 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.00086<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-7-BR<\/td>\n<td>0.0071 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.0012<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-8-BR<\/td>\n<td>0.0079 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.00<a href=\"https:\/\/www.bihec.com\/okeefe\/tag\/15\/\" title=\"View all posts in 15\" target=\"_blank\">15<\/a><\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-9-BR<\/td>\n<td>0.0091 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.0019<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-10-BR<\/td>\n<td>0.0102 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.0025<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-11-BR<\/td>\n<td>0.011 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.0028<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-15-BR<\/td>\n<td>0.015 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.005<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-16-BR<\/td>\n<td>0.016 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.0055<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-17-BR<\/td>\n<td>0.017 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.0067<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-18-BR<\/td>\n<td>0.018 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.0073<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-19-BR<\/td>\n<td>0.019 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.008<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-20-BR<\/td>\n<td>0.02 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.0088<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-21-BR<\/td>\n<td>0.021 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.0096<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-22-BR<\/td>\n<td>0.022 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.011<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-23-BR<\/td>\n<td>0.023 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.012<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-24-BR<\/td>\n<td>0.024 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.013<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-25-BR<\/td>\n<td>0.025 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.014<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-26-BR<\/td>\n<td>0.026 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.016<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-27-BR<\/td>\n<td>0.027 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.017<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>D-28-BR<\/td>\n<td>0.028 \u82f1\u5bf8<\/td>\n<td>\u9ec4\u94dc<\/td>\n<td>0.018<\/td>\n<td>2000 psig<\/td>\n<td>\u901a\u7528\u6807\u51c6<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p id=\"TLkZqXC\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone  wp-image-679 \" src=\"https:\/\/www.bihec.com\/okeefe\/wp-content\/uploads\/sites\/1490\/2026\/07\/img_6a61cb5c10d2b.png\" alt=\"\" width=\"403\" height=\"334\" srcset=\"https:\/\/www.bihec.com\/okeefe\/wp-content\/uploads\/sites\/1490\/2026\/07\/img_6a61cb5c10d2b.png 434w, https:\/\/www.bihec.com\/okeefe\/wp-content\/uploads\/sites\/1490\/2026\/07\/img_6a61cb5c10d2b-300x249.png 300w\" sizes=\"(max-width: 403px) 100vw, 403px\" \/><\/p>\n<p id=\"yGvqVqO\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone  wp-image-680 \" src=\"https:\/\/www.bihec.com\/okeefe\/wp-content\/uploads\/sites\/1490\/2026\/07\/img_6a61cb6a99943.png\" alt=\"\" width=\"379\" height=\"220\" srcset=\"https:\/\/www.bihec.com\/okeefe\/wp-content\/uploads\/sites\/1490\/2026\/07\/img_6a61cb6a99943.png 689w, https:\/\/www.bihec.com\/okeefe\/wp-content\/uploads\/sites\/1490\/2026\/07\/img_6a61cb6a99943-300x174.png 300w, https:\/\/www.bihec.com\/okeefe\/wp-content\/uploads\/sites\/1490\/2026\/07\/img_6a61cb6a99943-500x290.png 500w\" sizes=\"(max-width: 379px) 100vw, 379px\" \/><\/p>\n<p id=\"sDAxQWm\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone  wp-image-678 \" src=\"https:\/\/www.bihec.com\/okeefe\/wp-content\/uploads\/sites\/1490\/2026\/07\/img_6a61cb4c14fec.png\" alt=\"\" width=\"362\" height=\"314\" srcset=\"https:\/\/www.bihec.com\/okeefe\/wp-content\/uploads\/sites\/1490\/2026\/07\/img_6a61cb4c14fec.png 426w, https:\/\/www.bihec.com\/okeefe\/wp-content\/uploads\/sites\/1490\/2026\/07\/img_6a61cb4c14fec-300x261.png 300w\" sizes=\"(max-width: 362px) 100vw, 362px\" \/><\/p>\n<\/div>\n<\/div>\n<br><div class=\"tagcloud\"><a href=\"https:\/\/www.bihec.com\/okeefe\/tag\/npt%e5%86%85%e5%a4%96%e4%b8%9d%e8%bd%ac%e6%8e%a5%e5%a4%b4\/\" class=\"tag-cloud-link tag-link-0 tag-link-position-1\" style=\"font-size: 8pt;\" aria-label=\"NPT\u5185\u5916\u4e1d\u8f6c\u63a5\u5934 (1\u4e2a\u9879\u76ee)\">NPT\u5185\u5916\u4e1d\u8f6c\u63a5\u5934<\/a>\n<a href=\"https:\/\/www.bihec.com\/okeefe\/tag\/okeefe\/\" class=\"tag-cloud-link tag-link-2 tag-link-position-2\" style=\"font-size: 19.588888888889pt;\" aria-label=\"O&#039;KEEFE (61\u4e2a\u9879\u76ee)\">O&#039;KEEFE<\/a>\n<a href=\"https:\/\/www.bihec.com\/okeefe\/tag\/okeefe-controls\/\" class=\"tag-cloud-link tag-link-3 tag-link-position-3\" style=\"font-size: 22pt;\" aria-label=\"O&#039;Keefe Controls (125\u4e2a\u9879\u76ee)\">O&#039;Keefe Controls<\/a>\n<a href=\"https:\/\/www.bihec.com\/okeefe\/tag\/okeefe-controls-co\/\" class=\"tag-cloud-link tag-link-4 tag-link-position-4\" style=\"font-size: 20.211111111111pt;\" aria-label=\"O&#039;Keefe Controls Co. (73\u4e2a\u9879\u76ee)\">O&#039;Keefe Controls Co.<\/a>\n<a href=\"https:\/\/www.bihec.com\/okeefe\/tag\/okeefe%e7%b2%be%e5%af%86%e9%87%91%e5%b1%9e%e8%8a%82%e6%b5%81%e5%ad%94\/\" class=\"tag-cloud-link tag-link-5 tag-link-position-5\" style=\"font-size: 18.966666666667pt;\" aria-label=\"O&#039;keefe\u7cbe\u5bc6\u91d1\u5c5e\u8282\u6d41\u5b54 (50\u4e2a\u9879\u76ee)\">O&#039;keefe\u7cbe\u5bc6\u91d1\u5c5e\u8282\u6d41\u5b54<\/a>\n<a href=\"https:\/\/www.bihec.com\/okeefe\/tag\/o-keefe-controls\/\" class=\"tag-cloud-link tag-link-1 tag-link-position-6\" style=\"font-size: 19.744444444444pt;\" aria-label=\"O Keefe controls (63\u4e2a\u9879\u76ee)\">O Keefe controls<\/a>\n<a href=\"https:\/\/www.bihec.com\/okeefe\/tag\/%e6%8e%a5%e5%a4%b4-%e9%bb%84%e9%93%9c%e6%9d%90%e8%b4%a8\/\" class=\"tag-cloud-link tag-link-6 tag-link-position-7\" style=\"font-size: 8pt;\" aria-label=\"\u63a5\u5934 \u9ec4\u94dc\u6750\u8d28 (1\u4e2a\u9879\u76ee)\">\u63a5\u5934 \u9ec4\u94dc\u6750\u8d28<\/a>\n<a href=\"https:\/\/www.bihec.com\/okeefe\/tag\/%e7%b2%be%e5%af%86%e9%87%91%e5%b1%9e%e8%8a%82%e6%b5%81%e5%ad%94\/\" class=\"tag-cloud-link tag-link-7 tag-link-position-8\" style=\"font-size: 9.4pt;\" aria-label=\"\u7cbe\u5bc6\u91d1\u5c5e\u8282\u6d41\u5b54 (2\u4e2a\u9879\u76ee)\">\u7cbe\u5bc6\u91d1\u5c5e\u8282\u6d41\u5b54<\/a><\/div>","protected":false},"excerpt":{"rendered":"<p>\u7cbe\u5bc6\u91d1\u5c5e\u8282\u6d41\u5b54 \u2014 NPT \u5185\u5916\u4e1d\u8f6c\u63a5\u5934 \u91c7\u7528\u5b9e\u5fc3\u91d1\u5c5e\u4e00\u4f53\u6210\u578b\u7ed3\u6784\u3002\u8282\u6d41\u5b54\u7ecf\u8fc7\u7cbe\u5bc6\u673a\u52a0\u5de5\u3001\u5f7b\u5e95\u6e05\u6d01\uff0c\u5e76\u6309\u7167\u4e25\u82db\u6807\u51c6\u5b8c\u6210\u6d41\u91cf\u6d4b\u8bd5\u3002\u8282\u6d41\u5b54\u5f84\u89c4\u683c\u8303\u56f4\uff1a0.004 \u82f1\u5bf8\uff5e0.125 \u82f1\u5bf8 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