{"id":4309,"date":"2026-01-21T12:13:49","date_gmt":"2026-01-21T12:13:49","guid":{"rendered":"https:\/\/yunrui-controls.com\/?post_type=products&#038;p=4309"},"modified":"2026-03-29T16:11:54","modified_gmt":"2026-03-29T16:11:54","slug":"fisher-289-series","status":"publish","type":"products","link":"https:\/\/www.yunrui-controls.com\/vi\/products\/fisher-289-series\/","title":{"rendered":"Van an to\u00e0n \u0111i\u1ec1u ti\u1ebft nh\u1ea1y c\u1ea3m d\u00f2ng Fisher 289: D\u00f9ng \u0111\u1ec3 b\u1ea3o v\u1ec7 \u1edf \u00e1p su\u1ea5t th\u1ea5p."},"content":{"rendered":"<h2 data-path-to-node=\"4\">Nh\u1eefng l\u1ee3i \u00edch v\u00e0 \u01b0u \u0111i\u1ec3m ch\u00ednh<\/h2>\n<ul data-path-to-node=\"5\">\n<li>\n<p data-path-to-node=\"5,0,0\">Van an to\u00e0n ki\u1ec3u \u0111i\u1ec1u ti\u1ebft: Van m\u1edf d\u1ea7n khi \u00e1p su\u1ea5t v\u01b0\u1ee3t qu\u00e1 \u0111i\u1ec3m \u0111\u1eb7t, t\u1ea1o ra t\u00e1c \u0111\u1ed9ng x\u1ea3 \u00e1p \u00eam \u00e1i, gi\u1ea3m thi\u1ec3u nguy c\u01a1 t\u0103ng \u00e1p \u0111\u1ed9t ng\u1ed9t g\u00e2y h\u01b0 h\u1ea1i trong h\u1ec7 th\u1ed1ng ph\u00eda h\u1ea1 l\u01b0u.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,1,0\">L\u01b0u l\u01b0\u1ee3ng cao: M\u1eb7c d\u00f9 c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn, c\u00e1c van n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 x\u1eed l\u00fd l\u01b0u l\u01b0\u1ee3ng l\u1edbn, \u0111\u1ea3m b\u1ea3o ch\u00fang c\u00f3 th\u1ec3 x\u1ea3 \u0111\u1ee7 l\u01b0\u1ee3ng ch\u1ea5t l\u1ecfng \u0111\u1ec3 gi\u1eef an to\u00e0n cho h\u1ec7 th\u1ed1ng trong tr\u01b0\u1eddng h\u1ee3p qu\u00e1 \u00e1p.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,2,0\">\u0110\u1ed9 nh\u1ea1y \u00e1p su\u1ea5t th\u1ea5p v\u01b0\u1ee3t tr\u1ed9i: V\u1edbi di\u1ec7n t\u00edch m\u00e0ng ng\u0103n l\u1edbn, d\u00f2ng van 289 mang l\u1ea1i \u0111\u1ed9 nh\u1ea1y v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1eb7c bi\u1ec7t cao \u1edf c\u00e1c m\u1ee9c \u00e1p su\u1ea5t r\u1ea5t th\u1ea5p, n\u01a1i c\u00e1c van nh\u1ecf h\u01a1n c\u00f3 th\u1ec3 kh\u00f3 ph\u1ea3n h\u1ed3i.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,3,0\">\u0110\u1ed9 tin c\u1eady nh\u1edd s\u1ef1 \u0111\u01a1n gi\u1ea3n: V\u1edbi thi\u1ebft k\u1ebf l\u00f2 xo \u0111\u01a1n gi\u1ea3n v\u00e0 t\u1ed1i thi\u1ec3u c\u00e1c b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng, d\u00f2ng s\u1ea3n ph\u1ea9m 289 mang l\u1ea1i hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh v\u1edbi \u0111\u1ed9 tin c\u1eady cao v\u00e0 y\u00eau c\u1ea7u b\u1ea3o tr\u00ec th\u1ea5p.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,4,0\">Thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn: K\u00edch th\u01b0\u1edbc nh\u1ecf gi\u00fap d\u1ec5 d\u00e0ng l\u1eafp \u0111\u1eb7t trong c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng ch\u1eadt h\u1eb9p, h\u1ed1 \u0111i\u1ec1u ch\u1ec9nh \u00e1p su\u1ea5t ho\u1eb7c tr\u00ean thi\u1ebft b\u1ecb g\u1eafn tr\u00ean khung \u0111\u1ee1.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,5,0\">B\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng: Ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t c\u01a1 ch\u1ebf gi\u00e1m s\u00e1t \u0111\u00e1ng tin c\u1eady cho c\u00e1c b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh \u00e1p su\u1ea5t ph\u00eda h\u1ea1 l\u01b0u, \u0111\u1ea3m b\u1ea3o r\u1eb1ng s\u1ef1 c\u1ed1 c\u1ee7a b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh ho\u1eb7c s\u1ef1 t\u0103ng \u00e1p \u0111\u1ed9t ng\u1ed9t t\u1eeb b\u00ean ngo\u00e0i kh\u00f4ng d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng qu\u00e1 \u00e1p nguy hi\u1ec3m.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"6\">\u0110\u1eb7c t\u00ednh k\u1ef9 thu\u1eadt<\/h3>\n<ul data-path-to-node=\"7\">\n<li>\n<p data-path-to-node=\"7,0,0\">K\u00edch th\u01b0\u1edbc th\u00e2n: C\u00f3 nhi\u1ec1u k\u00edch th\u01b0\u1edbc kh\u00e1c nhau, th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb 3\/4 inch \u0111\u1ebfn 2 inch (DN 20 \u0111\u1ebfn 50).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,1,0\">\u0110\u1ea7u n\u1ed1i: \u0110\u01b0\u1ee3c cung c\u1ea5p v\u1edbi c\u1ea5u h\u00ecnh ren NPT \u0111\u1ec3 d\u1ec5 d\u00e0ng t\u00edch h\u1ee3p v\u00e0o h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng ti\u00eau chu\u1ea9n.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,2,0\">C\u00e0i \u0111\u1eb7t \u00e1p su\u1ea5t: \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho vi\u1ec7c x\u1ea3 \u00e1p su\u1ea5t th\u1ea5p, th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb v\u00e0i inch c\u1ed9t n\u01b0\u1edbc \u0111\u1ebfn v\u00e0i psi.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,3,0\">C\u1ea5u t\u1ea1o v\u1eadt li\u1ec7u: Th\u01b0\u1eddng c\u00f3 th\u00e2n b\u1eb1ng nh\u00f4m b\u1ec1n ch\u1eafc v\u1edbi nhi\u1ec1u l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u \u0111\u00e0n h\u1ed3i kh\u00e1c nhau cho m\u00e0ng ng\u0103n v\u00e0 \u0111\u1ebf van \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u01b0\u01a1ng th\u00edch v\u1edbi kh\u00ed t\u1ef1 nhi\u00ean, kh\u00f4ng kh\u00ed v\u00e0 propan.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,4,0\">Kh\u00f4ng thu\u1ed9c ti\u00eau chu\u1ea9n ASME: \u0110\u00e2y l\u00e0 c\u00e1c van x\u1ea3 \u00e1p \u0111i\u1ec1u khi\u1ec3n \u00e1p su\u1ea5t d\u00f9ng \u0111\u1ec3 \u1ed5n \u0111\u1ecbnh quy tr\u00ecnh; ch\u00fang kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 s\u1eed d\u1ee5ng l\u00e0m van x\u1ea3 an to\u00e0n theo ti\u00eau chu\u1ea9n ASME.<\/p>\n<\/li>\n<\/ul>\n<h4 data-path-to-node=\"8\">L\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng<\/h4>\n<p data-path-to-node=\"9\">D\u00f2ng s\u1ea3n ph\u1ea9m 289 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng kh\u00ed \u00e1p su\u1ea5t th\u1ea5p \u0111\u1ec3 ng\u0103n c\u00e1c thi\u1ebft b\u1ecb ph\u00eda sau ti\u1ebfp x\u00fac v\u1edbi \u00e1p su\u1ea5t cao h\u01a1n b\u00ecnh th\u01b0\u1eddng. \u0110\u00e2y l\u00e0 s\u1ea3n ph\u1ea9m thi\u1ebft y\u1ebfu trong h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i kh\u00ed \u0111\u1ed1t \u0111\u00f4 th\u1ecb v\u00e0 h\u1ec7 th\u1ed1ng s\u01b0\u1edfi \u1ea5m th\u01b0\u01a1ng m\u1ea1i.<\/p>\n<h5 data-path-to-node=\"10\">C\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u00e0 \u1ee9ng d\u1ee5ng ch\u00ednh:<\/h5>\n<ul data-path-to-node=\"11\">\n<li>\n<p data-path-to-node=\"11,0,0\">Ph\u00e2n ph\u1ed1i kh\u00ed \u0111\u1ed1t t\u1ef1 nhi\u00ean: C\u00e1c tr\u1ea1m \u0111i\u1ec1u \u00e1p khu v\u1ef1c v\u00e0 d\u00e2n c\u01b0 \u0111\u00f3ng vai tr\u00f2 b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p th\u1ee9 c\u1ea5p.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,1,0\">Kh\u00ed nhi\u00ean li\u1ec7u c\u00f4ng nghi\u1ec7p: B\u1ea3o v\u1ec7 c\u00e1c \u0111\u1ea7u \u0111\u1ed1t, l\u00f2 nung v\u00e0 l\u00f2 n\u01b0\u1edbng kh\u1ecfi s\u1ef1 t\u0103ng \u00e1p \u0111\u1ed9t ng\u1ed9t trong \u0111\u01b0\u1eddng d\u1eabn nhi\u00ean li\u1ec7u.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,2,0\">C\u00e1c c\u01a1 s\u1edf th\u01b0\u01a1ng m\u1ea1i: Cung c\u1ea5p gi\u1ea3i ph\u00e1p gi\u1ea3m \u00e1p cho h\u1ec7 th\u1ed1ng kh\u00ed \u0111\u1ed1t t\u1ea1i tr\u01b0\u1eddng h\u1ecdc, b\u1ec7nh vi\u1ec7n v\u00e0 trung t\u00e2m mua s\u1eafm.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,3,0\">H\u1ec7 th\u1ed1ng bao ph\u1ee7 b\u1ec3 ch\u1ee9a: \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t van x\u1ea3 \u00e1p ho\u1eb7c van th\u00f4ng h\u01a1i \u0111\u01a1n gi\u1ea3n cho c\u00e1c b\u1ec3 ch\u1ee9a \u00e1p su\u1ea5t th\u1ea5p.<\/p>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>The Fisher 289 Series consists of spring-loaded, throttling relief valves designed to protect downstream systems from overpressure. Unlike standard &#8220;pop-action&#8221; safety valves, the 289 Series operates with a smooth throttling action that opens gradually to bleed off excess pressure. This makes them ideal for natural gas distribution and industrial fuel systems where minimizing pressure surges and maintaining system stability are critical.<\/p>","protected":false},"author":1,"featured_media":4310,"parent":0,"menu_order":687,"comment_status":"open","ping_status":"open","template":"","format":"standard","meta":{"_acf_changed":false,"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":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"tags":[311,318,314],"brands":[112,308],"model_series":[],"industries":[54,63,53],"product_cat":[309],"class_list":["post-4309","products","type-products","status-publish","format-standard","has-post-thumbnail","hentry","tag-fisher","tag-fisher-289","tag-regulators-relief-valves","brands-fisher","brands-regulators-relief-valves","industries-chemical-petrochemical","industries-construction-cement","industries-oil-gas","product_cat-regulators-relief-valves"],"acf":{"body_sizes_and_end_connection_styles":"Types 289A and 289U: 1\/4 NPT\r\nType 289H: 1, 2 NPT\r\nType 289HH: 1 NPT\r\nType 289L: 3\/4, 1 NPT\r\nType 289U: 1\/4 NPT","temperature_capabilities":"Nitrile (NBR) and Neoprene (CR) Elastomers: -20 to 150\u00b0F \/ -29 to 66\u00b0C Fluorocarbon (FKM): 20 to 300\u00b0F \/ -7 to 149\u00b0C Available with Types 289H and 289HH only","maximum_inlet_pressure":"100 psig \/ 6.9 bar\r\n289H\uff1a25 psig \/ 1.7 bar","maximum_outlet_pressures":"","outlet_pressure_ranges":"","pressure_registration":"Internal","available_low_pressure_configurations":"","available_high_pressure_configurations":"","available_pressure_differential_configurations":"","body_and_spring_case_materials":"","approximate_weights":"Type 289A and 289U: 0.75 Pounds \/ 0.3 kg\r\nType 289H: 1 NPT - 4 Pounds \/ 2 kg, 2 NPT - 15 Pounds \/ 7 kg\r\nType 289HH: 4 Pounds \/ 2 kg\r\nType 289L: 15 Pounds \/ 7 kg","available_backpressure_constructions":"","available_high_pressure_differential_constructions":"","available_constructions":"","main_valve_pressure_ratings":"","allowable_inlet_pressure":"","allowable_outlet_pressure":"","orifice_sizes":"","external_registration_connection":"","hydrogen_h2":"","capacity":"","gauge_outlet":"","maximum_temperature":"","spring_ranges":"","token_relief":"","type_tm600_true-monitor\u2122_specifications":"","type_vsx4_slam-shut_module_specifications":"","maximum_allowable_pressures":"","hydrogen_configurations":"","datasheet":4311,"live_photos":"","available_certificates":"","available_logistics":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v26.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Fisher 289 Series | Factory Direct Distributor<\/title>\n<meta name=\"description\" content=\"Partner with Yunrui Control for your Fisher 289 Series: Sensitive Throttling Relief Valves for Low-Pressure Protection needs. Experience seamless procur...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.yunrui-controls.com\/vi\/products\/fisher-289-series\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fisher 289 Series: Sensitive Throttling Relief Valves for Low-Pressure Protection\" \/>\n<meta property=\"og:description\" content=\"Partner with Yunrui Control for your Fisher 289 Series: Sensitive Throttling Relief Valves for Low-Pressure Protection needs. Experience seamless procur...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.yunrui-controls.com\/vi\/products\/fisher-289-series\/\" \/>\n<meta property=\"og:site_name\" content=\"Fisher, E+H &amp; Rosemount Supplier from China | 100% Original | YUNRUI\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-29T16:11:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/01\/original-fisher-289-series-sensitive-throttling-relief-valves-for-low-pressure-protection-from-china-supplier-yunrui.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"555\" \/>\n\t<meta property=\"og:image:height\" content=\"555\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.yunrui-controls.com\/products\/fisher-289-series\/\",\"url\":\"https:\/\/www.yunrui-controls.com\/products\/fisher-289-series\/\",\"name\":\"Fisher 289 Series | Factory Direct Distributor\",\"isPartOf\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/products\/fisher-289-series\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/products\/fisher-289-series\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/01\/original-fisher-289-series-sensitive-throttling-relief-valves-for-low-pressure-protection-from-china-supplier-yunrui.jpg\",\"datePublished\":\"2026-01-21T12:13:49+00:00\",\"dateModified\":\"2026-03-29T16:11:54+00:00\",\"description\":\"Partner with Yunrui Control for your Fisher 289 Series: Sensitive Throttling Relief Valves for Low-Pressure Protection needs. 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