{"id":2058,"date":"2023-02-07T10:08:14","date_gmt":"2023-02-07T02:08:14","guid":{"rendered":"https:\/\/www.fgttw.com\/?post_type=product&#038;p=2058"},"modified":"2025-07-11T20:32:25","modified_gmt":"2025-07-11T12:32:25","slug":"pfb220-type-area-flowmeter-rotameter","status":"publish","type":"product","link":"https:\/\/www.fgttw.com\/vi\/product-manufacturing\/flow-meter\/gas-flowmeter\/pfb220-type-area-flowmeter-rotameter\/","title":{"rendered":"PFB220 Lo\u1ea1i: L\u01b0u l\u01b0\u1ee3ng k\u1ebf di\u1ec7n t\u00edch | Rotameter"},"content":{"rendered":"<div id=\"sppb-addon-wrapper-1570735928930\" class=\"sppb-addon-wrapper\">\n<div id=\"sppb-addon-1570735928930\" class=\"clearfix\">\n<div class=\"sppb-addon sppb-addon-text-block\">\n<div class=\"sppb-addon-content\">\n<ul>\n<li><strong>Lo\u1ea1i ch\u1ea5t l\u1ecfng:<\/strong>ch\u1ea5t kh\u00ed v\u00e0 ch\u1ea5t l\u1ecfng.<\/li>\n<li><strong>V\u1eadt li\u1ec7u b\u1ed9 ph\u1eadn l\u00e0m \u01b0\u1edbt:<\/strong>V\u00f2ng ch\u1eef O b\u1eb1ng nh\u1ef1a th\u00e2n acrylic - NBR, Phao - SS316<\/li>\n<li><strong>V\u1eadt li\u1ec7u van:<\/strong>SS316L<\/li>\n<li><strong>K\u00edch th\u01b0\u1edbc k\u1ebft n\u1ed1i:<\/strong>M5 (nam) &amp; 1\/4 &quot;(n\u1eef)<\/li>\n<li><strong>C\u00e0i \u0111\u1eb7t:<\/strong>v\u1ecb tr\u00ed th\u1eb3ng \u0111\u1ee9ng<\/li>\n<li><strong>\u00c1p su\u1ea5t t\u1ed1i \u0111a:<\/strong>150 Psig (10 bar) \u1edf 38 \u00b0 C (100 \u00b0 F).<\/li>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a: ~ + 70 \u2103<\/strong><\/li>\n<li><strong>S\u1ef1 ch\u00ednh x\u00e1c:<\/strong>\u00b1 3% c\u1ee7a quy m\u00f4 \u0111\u1ea7y \u0111\u1ee7<\/li>\n<\/ul>\n<p>c\u1ea5u tr\u00fac<\/p>\n<p><em><strong>\u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng di\u1ec7n t\u00edch<\/strong><\/em>C\u1ea5u t\u1ea1o \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong h\u00ecnh: n\u00f3 ch\u1ee7 y\u1ebfu bao g\u1ed3m m\u1ed9t \u1ed1ng h\u00ecnh n\u00f3n b\u1eb1ng nh\u1ef1a trong su\u1ed1t v\u1edbi \u0111\u1ea7u nh\u1ecf h\u01b0\u1edbng xu\u1ed1ng v\u00e0 \u0111\u1ea7u l\u1edbn h\u01b0\u1edbng l\u00ean v\u00e0 phao c\u00f3 th\u1ec3 di chuy\u1ec3n l\u00ean xu\u1ed1ng trong \u1ed1ng h\u00ecnh n\u00f3n l\u00e0m b\u1ed9 ph\u1eadn \u0111o, \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o b\u1edfi \u0111ai \u1ed1c, v\u00f2i phun, n\u00fat ch\u1eb7n v\u00e0 v\u00f2ng &quot;O&quot;, v.v. Khi ch\u1ea5t l\u1ecfng ch\u1ea3y t\u1eeb d\u01b0\u1edbi l\u00ean tr\u00ean trong \u1ed1ng h\u00ecnh n\u00f3n, t\u1ea1o ra s\u1ef1 ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t l\u00ean v\u00e0 xu\u1ed1ng c\u1ee7a phao, l\u00e0m cho phao n\u1ed5i l\u00ean. Khi ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t c\u00e2n b\u1eb1ng v\u1edbi tr\u1ecdng l\u1ef1c, l\u1ef1c n\u1ed5i v\u00e0 l\u1ef1c nh\u1edbt c\u1ee7a phao, phao \u1edf v\u1ecb tr\u00ed t\u0129nh. Khi t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y thay \u0111\u1ed5i, v\u1eadn t\u1ed1c d\u00f2ng ch\u1ea3y c\u1ee7a ch\u1ea5t l\u1ecfng ch\u1ea3y qua khe h\u1edf h\u00ecnh khuy\u00ean gi\u1eefa \u1ed1ng h\u00ecnh n\u00f3n v\u00e0 phao thay \u0111\u1ed5i, ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t tr\u00ean v\u00e0 d\u01b0\u1edbi phao thay \u0111\u1ed5i t\u01b0\u01a1ng \u1ee9ng, v\u00e0 phao chuy\u1ec3n \u0111\u1ed9ng l\u00ean v\u00e0 xu\u1ed1ng d\u01b0\u1edbi, v\u00ec v\u1eady chi\u1ec1u cao c\u1ee7a phao \u1edf v\u1ecb tr\u00ed t\u0129nh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m th\u01b0\u1edbc \u0111o l\u01b0u l\u01b0\u1ee3ng.<\/p>\n<p>C\u00e0i \u0111\u1eb7t<\/p>\n<p>(1) Tr\u01b0\u1edbc khi l\u1eafp \u0111\u1eb7t, d\u00f9ng k\u00ecm m\u0169i kim l\u1ea5y gi\u00e1 \u0111\u1ee1 tr\u01a1n trong d\u1ee5ng c\u1ee5 ra r\u1ed3i l\u1eafp l\u1ea1i, khi l\u1eafp ph\u1ea3i ch\u00fa \u00fd xem v\u00f2ng cao su c\u00f3 \u0111\u01b0\u1ee3c l\u1eafp v\u00e0o r\u00e3nh c\u1ee7a \u0111\u1ea7u phun hay kh\u00f4ng \u0111\u1ec3 tr\u00e1nh r\u00f2 r\u1ec9 n\u01b0\u1edbc.<\/p>\n<p>(2) Giao di\u1ec7n c\u1ee7a l\u01b0u l\u01b0\u1ee3ng k\u1ebf c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi \u1ed1ng nh\u1ef1a ABS ph\u00f9 h\u1ee3p ho\u1eb7c \u1ed1ng nh\u1ef1a PVC c\u00f3 k\u1ebft n\u1ed1i li\u00ean k\u1ebft kh\u1eed n\u01b0\u1edbc \u0111\u1eb7c bi\u1ec7t, ho\u1eb7c n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi m\u1eb7t b\u00edch kim lo\u1ea1i sau khi \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p nh\u1ef1a.<\/p>\n<p>\uff083\uff09 \u6d41\u91cf\u8a08\u5fc5\u9808\u5782\u76f4\u5b89\u88dd,\u61c9\u7121\u660e\u986f\u50be\u659c\uff0c\u5176\u5b89\u88dd\u9ad8\u5ea6\uff0c\u61c9\u4fbf\u65bc\u5c0d\u6d6e\u5b50\u7684\u8b80\u6578\uff0c\u8b80\u6578\u6642,\u8996\u7dda\u8207\u6d6e\u5b50\u61c9\u6c34\u5e73\u3002\uff08\u4e00\u822c\u6a19\u6e96\uff1a\u9700\u7528\u7684\u6d41\u91cf\u7232\u6d41\u91cf\u8a08\u6d41\u91cf\u768450%70%\uff0c\u5118\u91cf\u4e0d\u8981\u7528\u5230\u9ad8\u6578\u3002\uff09<\/p>\n<p>(4) \u0110\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra ng\u01b0\u1ee3c d\u00f2ng v\u00e0 h\u1ea1 l\u01b0u c\u1ee7a thi\u1ebft b\u1ecb ph\u1ea3i \u0111\u1ea3m b\u1ea3o c\u00f3 c\u00e1c \u0111o\u1ea1n \u1ed1ng th\u1eb3ng v\u1edbi \u0111\u01b0\u1eddng k\u00ednh g\u1ea5p 5 l\u1ea7n \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a thi\u1ebft b\u1ecb.<\/p>\n<p>(5) \u00c1p su\u1ea5t c\u1ee7a ch\u1ea5t l\u1ecfng c\u1ea7n \u0111o ph\u1ea3i \u1ed5n \u0111\u1ecbnh, n\u1ebfu \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng kh\u00f4ng \u1ed5n \u0111\u1ecbnh, phao s\u1ebd dao \u0111\u1ed9ng v\u00e0 kh\u00f4ng th\u1ec3 \u0111o ch\u00ednh x\u00e1c. C\u1ea7n l\u1eafp \u0111\u1eb7t m\u1ed9t b\u1ed9 \u0111\u1ec7m ho\u1eb7c m\u1ed9t b\u1ed9 \u0111\u1ecbnh gi\u00e1 \u1edf ph\u00eda tr\u00ean l\u01b0u l\u01b0\u1ee3ng k\u1ebf.<\/p>\n<p>Khi s\u1eed d\u1ee5ng l\u01b0u l\u01b0\u1ee3ng k\u1ebf, c\u1ea7n<strong>M\u1edf t\u1eeb t\u1eeb van ng\u01b0\u1ee3c d\u00f2ng \u0111\u1ebfn m\u1ee9c m\u1edf ho\u00e0n to\u00e0n, sau \u0111\u00f3 \u0111i\u1ec1u ch\u1ec9nh l\u01b0u l\u01b0\u1ee3ng b\u1eb1ng van \u0111i\u1ec1u ch\u1ec9nh h\u1ea1 l\u01b0u c\u1ee7a \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng<\/strong>. (\u0110\u1ec3 tr\u00e1nh cho phao b\u1ecb va \u0111\u1eadp \u0111\u1ed9t ng\u1ed9t l\u00ean tr\u00ean, l\u00e0m h\u1ecfng thi\u1ebft b\u1ecb v\u00e0 tr\u00e1nh s\u1ef1 thay \u0111\u1ed5i \u0111\u1ed9t ng\u1ed9t c\u1ee7a nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 \u0111o \u0111\u01b0\u1ee3c. N\u1ebfu l\u01b0u l\u01b0\u1ee3ng k\u1ebf b\u1ecb r\u00f2 r\u1ec9 trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng, th\u01b0\u1eddng l\u00e0 do v\u00f2ng \u0111\u1ec7m b\u1ecb l\u1ec7ch ho\u1eb7c h\u1ecfng, \u0111i\u1ec1u n\u00e0y n\u00ean \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa ho\u1eb7c thay th\u1ebf.) Khi d\u1eebng l\u01b0u l\u01b0\u1ee3ng k\u1ebf, tr\u01b0\u1edbc ti\u00ean ph\u1ea3i gi\u1ea3m t\u1ed1c \u0111\u1ed9, \u0111\u00f3ng van ng\u01b0\u1ee3c d\u00f2ng, sau \u0111\u00f3 \u0111\u00f3ng van \u0111i\u1ec1u ch\u1ec9nh l\u01b0u l\u01b0\u1ee3ng \u1edf h\u1ea1 l\u01b0u \u0111\u1ed3ng h\u1ed3.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"sppb-addon-wrapper-1575341087078\" class=\"sppb-addon-wrapper\">\n<div id=\"sppb-addon-1575341087078\" class=\"clearfix\">\n<div class=\"sppb-addon sppb-addon-text-block\">\n<div class=\"sppb-addon-content\">\n<div id=\"bodyContent\" class=\"mw-body-content\">\n<div id=\"mw-content-text\" class=\"mw-content-ltr\" dir=\"ltr\" lang=\"en\">\n<div class=\"mw-parser-output\">\n<h1><span id=\"Variable_Area_Flowmeters\" class=\"mw-headline\"><strong><em>\u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng di\u1ec7n t\u00edch<\/em><\/strong><\/span><\/h1>\n<h2><span id=\"Introduction\" class=\"mw-headline\"><br \/>\n<strong>gi\u1edbi thi\u1ec7u<\/strong><\/span><\/h2>\n<p><strong><em>\u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng di\u1ec7n t\u00edch<\/em><\/strong>N\u00f3 l\u00e0 m\u1ed9t \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t. \u0110\u00e2y l\u00e0 nh\u1eefng thi\u1ebft b\u1ecb \u0111\u01a1n gi\u1ea3n v\u00e0 linh ho\u1ea1t \u0111\u1ec3 \u0111o d\u00f2ng ch\u1ea3y c\u1ee7a ch\u1ea5t l\u1ecfng, ch\u1ea5t kh\u00ed v\u00e0 h\u01a1i n\u01b0\u1edbc. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng v\u1edbi s\u1ef1 gi\u1ea3m \u00e1p su\u1ea5t kh\u00e1 \u1ed5n \u0111\u1ecbnh. Trong c\u00e1c lo\u1ea1i \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng n\u00e0y, ch\u1ec9 th\u1ecb tr\u1ef1c quan v\u1ec1 l\u01b0u l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c \u0111\u01b0a ra b\u1edfi v\u1ecb tr\u00ed c\u1ee7a phao, p\u00edt-t\u00f4ng ho\u1eb7c c\u00e1nh g\u1ea1t. V\u1ecb tr\u00ed c\u1ee7a phao, piston ho\u1eb7c c\u00e1nh g\u1ea1t c\u1ee7a ch\u00fang thay \u0111\u1ed5i khi t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y t\u0103ng l\u00ean m\u1edf ra m\u1ed9t v\u00f9ng d\u00f2ng ch\u1ea3y l\u1edbn h\u01a1n cho ch\u1ea5t l\u1ecfng ch\u1ea3y qua. Khi gi\u1ea3m d\u00f2ng ch\u1ea3y, tr\u1ecdng l\u1ef1c ho\u1eb7c l\u00f2 xo \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u01b0a ph\u1ea7n t\u1eed d\u00f2ng ch\u1ea3y tr\u1edf l\u1ea1i v\u1ecb tr\u00ed t\u0129nh c\u1ee7a n\u00f3. \u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng tr\u1ecdng l\u1ef1c c\u0169ng ph\u1ea3i \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u1edf v\u1ecb tr\u00ed th\u1eb3ng \u0111\u1ee9ng, ng\u01b0\u1ee3c l\u1ea1i \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng d\u1ea1ng l\u00f2 xo c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u1edf m\u1ecdi v\u1ecb tr\u00ed. M\u1ed7i \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng di\u1ec7n t\u00edch thay \u0111\u1ed5i c\u00f3 m\u1ed9t ch\u1ec9 b\u00e1o c\u1ee5c b\u1ed9. Ngo\u00e0i ra, ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c trang b\u1ecb c\u1ea3m bi\u1ebfn v\u1ecb tr\u00ed v\u00e0 m\u00e1y ph\u00e1t, t\u1ee9c l\u00e0 c\u1ea3m bi\u1ebfn kh\u00ed n\u00e9n, \u0111i\u1ec7n t\u1eed, k\u1ef9 thu\u1eadt s\u1ed1 ho\u1eb7c lo\u1ea1i s\u1ee3i quang, \u0111\u1ec3 li\u00ean k\u1ebft v\u1edbi m\u00e0n h\u00ecnh ho\u1eb7c \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa.<\/p>\n<p>L\u01b0u l\u01b0\u1ee3ng k\u1ebf c\u00f3 c\u1ea5u t\u1ea1o g\u1ed3m m\u1ed9t \u1ed1ng c\u00f4n th\u1eb3ng \u0111\u1ee9ng m\u1edf r\u1ed9ng t\u1eeb d\u01b0\u1edbi l\u00ean tr\u00ean v\u00e0 m\u1ed9t phao c\u00f3 ti\u1ebft di\u1ec7n tr\u00f2n. Phao chuy\u1ec3n \u0111\u1ed9ng nh\u1edd l\u1ef1c c\u1ee7a ch\u1ea5t l\u1ecfng ch\u1ea3y t\u1eeb d\u01b0\u1edbi l\u00ean tr\u00ean, t\u00ednh th\u1ec3 t\u00edch c\u1ee7a d\u00f2ng ch\u1ea3y qua khu v\u1ef1c c\u1ee7a ch\u1ea5t l\u1ecfng. \u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n, h\u00f3a d\u1ea7u, h\u00f3a ch\u1ea5t, x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c<\/p>\n<h2><span id=\"Types_of_Variable_Area_Flowmeters\" class=\"mw-headline\"><strong><em>\u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng di\u1ec7n t\u00edch<\/em>g\u00f5 ph\u00edm<\/strong><\/span><\/h2>\n<p><em><strong>\u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng di\u1ec7n t\u00edch<\/strong><\/em>C\u00f3 s\u1eb5n trong c\u00e1c thi\u1ebft k\u1ebf sau<\/p>\n<ul>\n<li>Rotameter (c\u00f3 phao trong \u1ed1ng h\u00ecnh n\u00f3n)<\/li>\n<li>K\u1ebft h\u1ee3p Orifice \/ rotameter, t\u1ee9c l\u00e0 b\u1ecf qua rotameter<\/li>\n<li>M\u1edf c\u1ed5ng bi\u1ebfn k\u00eanh<\/li>\n<li>Cone Quick Plug, v\u00e0<\/li>\n<li><a class=\"new\" title=\"Vane (trang kh\u00f4ng t\u1ed3n t\u1ea1i)\" href=\"http:\/\/automationwiki.com\/index.php?title=Vane&amp;action=edit&amp;redlink=1\" target=\"_blank\" rel=\"noopener\">Thi\u1ebft k\u1ebf c\u00e1nh g\u1ea1t ho\u1eb7c piston<\/a><\/li>\n<\/ul>\n<h2><strong><em><span id=\"Rotameters\" class=\"mw-headline\">Rotameter<\/span><\/em><\/strong><\/h2>\n<p><strong><em>Rotameter<\/em><\/strong>l\u00e0 bi\u1ebfn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t<strong>\u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng di\u1ec7n t\u00edch<\/strong>.<strong><em>Rotameter<\/em><\/strong>V\u1ec1 c\u01a1 b\u1ea3n, n\u00f3 bao g\u1ed3m m\u1ed9t \u1ed1ng h\u00ecnh n\u00f3n b\u1eb1ng th\u1ee7y tinh ho\u1eb7c nh\u1ef1a \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u01b0\u1edbng theo ph\u01b0\u01a1ng th\u1eb3ng \u0111\u1ee9ng v\u00e0 m\u1ed9t phao \u0111o s\u00e1ng c\u00f3 th\u1ec3 di chuy\u1ec3n t\u1ef1 do b\u00ean trong \u1ed1ng. Rotameters, m\u1eb7c d\u00f9 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i l\u00e0 \u0111\u01a1n v\u1ecb ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t, nh\u01b0ng th\u1ef1c t\u1ebf l\u00e0 thi\u1ebft b\u1ecb ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t kh\u00f4ng \u0111\u1ed5i. Ph\u1ee5 ki\u1ec7n cu\u1ed1i m\u1eb7t b\u00edch cung c\u1ea5p m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng \u0111\u1ec3 l\u1eafp \u0111\u1eb7t ch\u00fang trong \u0111\u01b0\u1eddng \u1ed1ng. Phao t\u1ef1 do n\u1eb1m y\u00ean d\u01b0\u1edbi \u0111\u00e1y \u1ed1ng khi kh\u00f4ng c\u00f3 d\u00f2ng ch\u1ea3y c\u1ee7a ch\u1ea5t l\u1ecfng. Khi ch\u1ea5t l\u1ecfng \u0111i v\u00e0o \u0111\u00e1y \u1ed1ng, phao \u0111o b\u1eaft \u0111\u1ea7u nh\u00f4 l\u00ean. V\u1ecb tr\u00ed c\u1ee7a phao thay \u0111\u1ed5i tr\u1ef1c ti\u1ebfp theo d\u00f2ng ch\u1ea3y. V\u1ecb tr\u00ed ch\u00ednh x\u00e1c c\u1ee7a phao l\u00e0 n\u01a1i ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t gi\u1eefa b\u1ec1 m\u1eb7t tr\u00ean v\u00e0 d\u01b0\u1edbi c\u00e2n b\u1eb1ng tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a phao. L\u01b0u l\u01b0\u1ee3ng c\u00e0ng l\u1edbn th\u00ec phao n\u00e2ng c\u00e0ng cao. Trong tr\u01b0\u1eddng h\u1ee3p c\u00f3 ch\u1ea5t l\u1ecfng, phao n\u1ed5i l\u00ean do s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a l\u1ef1c n\u1ed5i c\u1ee7a ch\u1ea5t l\u1ecfng v\u00e0 \u0111\u1ea7u v\u1eadn t\u1ed1c c\u1ee7a ch\u1ea5t l\u1ecfng, trong khi v\u1edbi ch\u1ea5t kh\u00ed, l\u1ef1c n\u1ed5i kh\u00f4ng \u0111\u00e1ng k\u1ec3 v\u00e0 phao ph\u1ea3n \u1ee9ng \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 l\u1edbn v\u1edbi \u0111\u1ea7u v\u1eadn t\u1ed1c. H\u00ecnh d\u01b0\u1edbi \u0111\u00e2y cho th\u1ea5y m\u1ed9t rotameter \u0111i\u1ec3n h\u00ecnh:<\/p>\n<p>&nbsp;<\/p>\n<h2><span id=\"Main_Features\" class=\"mw-headline\"><br \/>\nt\u00ednh n\u0103ng ch\u00ednh<\/span><\/h2>\n<ol>\n<li>hi\u1ec7n h\u1eefu<strong>Rotameter<\/strong>, chi\u1ec1u cao c\u1ee7a phao bi\u1ec3u th\u1ecb d\u00f2ng ch\u1ea3y.<\/li>\n<li><strong>Rotameter<\/strong>C\u00e1c \u1ed1ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n v\u00e0 l\u1eadp ch\u1ec9 m\u1ee5c v\u1edbi c\u00e1c \u0111\u01a1n v\u1ecb l\u01b0u l\u01b0\u1ee3ng th\u00edch h\u1ee3p.<\/li>\n<li><strong>Rotameter<\/strong>T\u1ef7 l\u1ec7 quay v\u00f2ng th\u01b0\u1eddng cao t\u1edbi 12: 1.<\/li>\n<li>\u0110\u1ed9 ch\u00ednh x\u00e1c c\u00f3 th\u1ec3 l\u00ean \u0111\u1ebfn 1% \u0111\u00e1nh gi\u00e1 to\u00e0n thang \u0111o.<\/li>\n<li><strong>Rotameter<\/strong>\u1ed0ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng th\u1ee7y tinh, kim lo\u1ea1i ho\u1eb7c nh\u1ef1a.<\/li>\n<li>\u0110\u01b0\u1eddng k\u00ednh \u1ed1ng t\u1eeb 1\/4 \u0111\u1ebfn l\u1edbn h\u01a1n 6 in.<\/li>\n<li>Trong c\u00e1c \u1ee9ng d\u1ee5ng an to\u00e0n nh\u01b0 kh\u00f4ng kh\u00ed ho\u1eb7c n\u01b0\u1edbc,<strong>Rotameter<\/strong>C\u00e1c \u1ed1ng n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng th\u1ee7y tinh, trong khi ch\u00fang \u0111i k\u00e8m v\u1edbi c\u00e1c \u1ed1ng kim lo\u1ea1i trong tr\u01b0\u1eddng h\u1ee3p v\u1ee1 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng kh\u00f4ng an to\u00e0n.<\/li>\n<li>Ngo\u00e0i ra, \u0111\u1ed1i v\u1edbi \u00e1p su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n ph\u1ea1m vi th\u1ef1c t\u1ebf c\u1ee7a th\u1ee7y tinh, \u1ed1ng kim lo\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng<strong>Rotameter<\/strong>.<\/li>\n<li>\u1ed1ng nh\u1ef1a<strong>Rotameter<\/strong>l\u00e0 chi ph\u00ed trung b\u00ecnh<strong>Rotameter<\/strong>. Ngo\u00e0i ra, ch\u00fang l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng li\u00ean quan \u0111\u1ebfn ch\u1ea5t l\u1ecfng \u0103n m\u00f2n ho\u1eb7c n\u01b0\u1edbc kh\u1eed ion.<\/li>\n<li>H\u1ea7u h\u1ebft t\u1ea5t c\u1ea3 c\u00e1c rotameters \u0111\u1ec1u kh\u00f4ng nh\u1ea1y c\u1ea3m v\u1edbi s\u1ef1 thay \u0111\u1ed5i \u0111\u1ed9 nh\u1edbt. Nh\u1ea1y c\u1ea3m nh\u1ea5t l\u00e0 c\u1ef1c k\u1ef3 nh\u1ecf v\u1edbi phao h\u00ecnh c\u1ea7u<strong>Rotameter<\/strong>, trong khi c\u00e1c rotameters l\u1edbn h\u01a1n \u00edt nh\u1ea1y c\u1ea3m h\u01a1n v\u1edbi c\u00e1c t\u00e1c \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9 nh\u1edbt.<\/li>\n<li>Rotameters bao g\u1ed3m phao t\u1eeb t\u00ednh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c ch\u1ee9c n\u0103ng b\u00e1o \u0111\u1ed9ng v\u00e0 ph\u00e1t t\u00edn hi\u1ec7u.<\/li>\n<li>V\u00ec t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ecdc tr\u1ef1c ti\u1ebfp tr\u00ean thang \u0111o \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t b\u00ean c\u1ea1nh \u1ed1ng, n\u00ean kh\u00f4ng c\u1ea7n thi\u1ebft b\u1ecb \u0111\u1ecdc l\u01b0u l\u01b0\u1ee3ng ph\u1ee5 tr\u1ee3. Tuy nhi\u00ean, m\u1ed9t thi\u1ebft b\u1ecb c\u1ea3m bi\u1ebfn t\u1ef1 \u0111\u1ed9ng v\u1eabn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u1ea3m nh\u1eadn m\u1ee9c phao v\u00e0 g\u1eedi t\u00edn hi\u1ec7u d\u00f2ng ch\u1ea3y n\u1ebfu mu\u1ed1n.<\/li>\n<li>M\u1ed7i v\u1ecb tr\u00ed phao t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y c\u1ee5 th\u1ec3 cho m\u1eadt \u0111\u1ed9 ch\u1ea5t l\u1ecfng v\u00e0 \u0111\u1ed9 nh\u1edbt c\u1ee5 th\u1ec3. Do \u0111\u00f3, vi\u1ec7c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc rotameter cho m\u1ed7i \u1ee9ng d\u1ee5ng l\u00e0 r\u1ea5t quan tr\u1ecdng. N\u1ebfu c\u00f3 k\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p, t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng c\u00e1ch kh\u1edbp v\u1ecb tr\u00ed phao v\u1edbi m\u1ed9t thang \u0111o \u0111\u00e3 hi\u1ec7u chu\u1ea9n \u1edf b\u00ean ngo\u00e0i rotameter.<\/li>\n<li>Nhi\u1ec1u rotameters c\u00f3 van t\u00edch h\u1ee3p \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh l\u01b0u l\u01b0\u1ee3ng b\u1eb1ng tay.<\/li>\n<li>C\u00e1c h\u00ecnh d\u1ea1ng kh\u00e1c nhau c\u1ee7a phao c\u00f3 s\u1eb5n cho c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau. M\u1ed9t thi\u1ebft k\u1ebf phao \u0111\u1ea7u ti\u00ean c\u00f3 c\u00e1c khe, khi\u1ebfn phao xoay \u0111\u1ec3 \u1ed5n \u0111\u1ecbnh v\u00e0 c\u0103n gi\u1eefa. Do s\u1ef1 quay n\u00e0y c\u1ee7a phao, thu\u1eadt ng\u1eef rotameter \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1eb7t ra.<\/li>\n<\/ol>\n<h2><span id=\"Sizing_of_Rotameter\" class=\"mw-headline\"><strong>Rotameter<\/strong>k\u00edch th\u01b0\u1edbc c\u1ee7a<\/span><\/h2>\n<p>Rotameters th\u01b0\u1eddng c\u00f3 d\u1eef li\u1ec7u hi\u1ec7u chu\u1ea9n v\u00e0 thang \u0111o \u0111\u1ecdc tr\u1ef1c ti\u1ebfp cho kh\u00f4ng kh\u00ed ho\u1eb7c n\u01b0\u1edbc ho\u1eb7c c\u1ea3 hai. \u0110\u1ec3 \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc m\u1ed9t rotameter cho c\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c, tr\u01b0\u1edbc ti\u00ean, lu\u1ed3ng th\u1ef1c t\u1ebf ph\u1ea3i \u0111\u01b0\u1ee3c thay \u0111\u1ed5i th\u00e0nh lu\u1ed3ng ti\u00eau chu\u1ea9n. Trong tr\u01b0\u1eddng h\u1ee3p ch\u1ea5t l\u1ecfng, l\u01b0u l\u01b0\u1ee3ng ti\u00eau chu\u1ea9n ph\u1ea3i l\u00e0 n\u01b0\u1edbc t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi gpm, trong khi \u0111\u1ed1i v\u1edbi kh\u00ed, l\u01b0u l\u01b0\u1ee3ng ti\u00eau chu\u1ea9n d\u1ef1 ki\u1ebfn l\u00e0 l\u01b0u l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed t\u00ednh b\u1eb1ng feet kh\u1ed1i ti\u00eau chu\u1ea9n tr\u00ean ph\u00fat (scfm).<br \/>\nC\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t Rotameter cung c\u1ea5p c\u00e1c b\u1ea3ng li\u1ec7t k\u00ea c\u00e1c gi\u00e1 tr\u1ecb gpm t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u1ee7a n\u01b0\u1edbc v\u00e0 scfm trong kh\u00f4ng kh\u00ed. H\u1ecd c\u0169ng n\u00ean cung c\u1ea5p c\u00e1c quy t\u1eafc tr\u00ecnh chi\u1ebfu, nomogram ho\u1eb7c ph\u1ea7n m\u1ec1m m\u00e1y t\u00ednh c\u00f3 s\u1eb5n, nh\u1eefng quy t\u1eafc n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u cho c\u00e1c th\u01b0\u1edbc quay \u0111\u1ecbnh c\u1ee1.<\/p>\n<h2><span id=\"Advantages\" class=\"mw-headline\">l\u1ee3i th\u1ebf<\/span><\/h2>\n<p>Nh\u1eefng \u01b0u \u0111i\u1ec3m ch\u00ednh c\u1ee7a rotameter nh\u01b0 sau:<\/p>\n<ul>\n<li>gi\u00e1 th\u1ea5p<\/li>\n<li>Thi\u1ebft k\u1ebf \u0111\u01a1n gi\u1ea3n<\/li>\n<li>gi\u1ea3m \u00e1p su\u1ea5t th\u1ea5p<\/li>\n<li>s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i<\/li>\n<li>\u0110\u1ea7u ra tuy\u1ebfn t\u00ednh<\/li>\n<\/ul>\n<h3><strong>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn m\u1ed9t l\u01b0u l\u01b0\u1ee3ng k\u1ebf di\u1ec7n t\u00edch thay \u0111\u1ed5i?<\/strong><\/h3>\n<p>L\u01b0u l\u01b0\u1ee3ng k\u1ebf<br \/>\nD\u00f2ng ch\u1ea3y t\u1ed1i thi\u1ec3u v\u00e0 t\u1ed1i \u0111a l\u00e0 g\u00ec?<br \/>\nNhi\u1ec7t \u0111\u1ed9 qu\u00e1 tr\u00ecnh t\u1ed1i thi\u1ec3u v\u00e0 t\u1ed1i \u0111a l\u00e0 bao nhi\u00eau?<br \/>\nK\u00edch th\u01b0\u1edbc c\u1ee7a \u1ed1ng l\u00e0 bao nhi\u00eau?<br \/>\nB\u1ea1n mu\u1ed1n s\u1eed d\u1ee5ng m\u00e1y \u0111o \u0111\u1ecdc tr\u1ef1c ti\u1ebfp hay b\u1ea1n ch\u1ea5p nh\u1eadn m\u00e1y \u0111o y\u00eau c\u1ea7u?<br \/>\nB\u1ea1n c\u1ea7n \u0111\u1ed9 ch\u00ednh x\u00e1c n\u00e0o?<br \/>\nB\u1ea1n c\u00f3 c\u1ea7n m\u1ed9t van \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh d\u00f2ng ch\u1ea3y?<br \/>\nS\u1ebd c\u00f3 \u00e1p l\u1ef1c tr\u1edf l\u1ea1i?<br \/>\n\u00c1p su\u1ea5t qu\u00e1 tr\u00ecnh l\u1edbn nh\u1ea5t l\u00e0 bao nhi\u00eau?<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>PFB220 Lo\u1ea1i: l\u01b0u l\u01b0\u1ee3ng k\u1ebf di\u1ec7n t\u00edch | th\u00f4ng s\u1ed1 quay | \u1ee9ng d\u1ee5ng: ch\u1ea5t l\u1ecfng n\u00f3i chung | ch\u1ea5t l\u1ecfng trong ph\u00f2ng th\u00ed nghi\u1ec7m |: m\u00e1y ch\u00e0 s\u00e0n | n\u01b0\u1edbc tinh khi\u1ebft l\u00e0m s\u1ea1ch quy tr\u00ecnh \u01b0\u1edbt PCB | thi\u1ebft b\u1ecb x\u1eed l\u00fd n\u01b0\u1edbc tinh khi\u1ebft RO | thi\u1ebft b\u1ecb x\u1eed l\u00fd b\u1ec3 b\u01a1i |<br \/>\n\u0110\u01b0\u1eddng k\u00ednh \u1ed1ng \u00e1p d\u1ee5ng: l\u1eafp \u0111\u1eb7t ren trong 1\/4&quot; inch ho\u1eb7c l\u1eafp \u0111\u1eb7t ren ngo\u00e0i 1\/4&quot;<\/p>","protected":false},"featured_media":2059,"template":"","meta":[],"product_brand":[],"product_cat":[1685,1683,1684,1681],"product_tag":[316,318,283,304,290,286,317],"class_list":["post-2058","product","type-product","status-publish","has-post-thumbnail","product_cat-gas-flowmeter","product_cat-flow-meter","product_cat-liquid-flowmeter","product_cat-product-manufacturing","product_tag-dwyer","product_tag-fgt","product_tag-283","product_tag-304","product_tag-290","product_tag-286","product_tag-317","first","instock","downloadable","virtual","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.fgttw.com\/vi\/wp-json\/wp\/v2\/product\/2058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fgttw.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.fgttw.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/www.fgttw.com\/vi\/wp-json\/wp\/v2\/product\/2058\/revisions"}],"predecessor-version":[{"id":8199,"href":"https:\/\/www.fgttw.com\/vi\/wp-json\/wp\/v2\/product\/2058\/revisions\/8199"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fgttw.com\/vi\/wp-json\/wp\/v2\/media\/2059"}],"wp:attachment":[{"href":"https:\/\/www.fgttw.com\/vi\/wp-json\/wp\/v2\/media?parent=2058"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.fgttw.com\/vi\/wp-json\/wp\/v2\/product_brand?post=2058"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.fgttw.com\/vi\/wp-json\/wp\/v2\/product_cat?post=2058"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.fgttw.com\/vi\/wp-json\/wp\/v2\/product_tag?post=2058"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}