{"id":4693,"date":"2026-01-21T23:47:58","date_gmt":"2026-01-21T23:47:58","guid":{"rendered":"https:\/\/yunrui-controls.com\/?post_type=products&#038;p=4693"},"modified":"2026-03-29T16:13:45","modified_gmt":"2026-03-29T16:13:45","slug":"fisher-type-749b","status":"publish","type":"products","link":"https:\/\/www.yunrui-controls.com\/vi\/products\/fisher-type-749b\/","title":{"rendered":"Fisher Lo\u1ea1i 749B | B\u1ed9 chia t\u1ef1 \u0111\u1ed9ng c\u00f4ng su\u1ea5t cao"},"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\">Cung c\u1ea5p kh\u00ed li\u00ean t\u1ee5c: Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a van 749B l\u00e0 duy tr\u00ec d\u00f2ng ch\u1ea3y trong qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n. Khi ngu\u1ed3n cung c\u1ea5p ch\u00ednh c\u1ea1n ki\u1ec7t, c\u01a1 ch\u1ebf b\u00ean trong s\u1ebd t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n t\u1ea3i sang ngu\u1ed3n d\u1ef1 tr\u1eef, \u0111\u1ea3m b\u1ea3o c\u00e1c n\u1ed3i h\u01a1i, l\u00f2 nung v\u00e0 \u0111\u1ea7u \u0111\u1ed1t c\u00f4ng nghi\u1ec7p ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,1,0\"><span class=\"citation-3461 citation-end-3461\">C\u00f4ng su\u1ea5t l\u1edbn \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u00f4ng nghi\u1ec7p: Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c thi\u1ebft b\u1ecb chuy\u1ec3n \u0111\u1ed5i \u0111i\u1ec7n d\u00e2n d\u1ee5ng, d\u00f2ng 749B \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o \u0111\u1ec3 ph\u1ee5c v\u1ee5 kh\u1ed1i l\u01b0\u1ee3ng c\u00f4ng vi\u1ec7c l\u1edbn.<\/span> <span class=\"citation-3460 citation-end-3460\">B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng hai b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh d\u00f2ng 64 l\u00e0m th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i, h\u1ec7 th\u1ed1ng n\u00e0y c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u l\u01b0u l\u01b0\u1ee3ng l\u1edbn th\u01b0\u1eddng th\u1ea5y \u1edf c\u00e1c nh\u00e0 b\u1ebfp th\u01b0\u01a1ng m\u1ea1i l\u1edbn, m\u00e1y s\u1ea5y n\u00f4ng nghi\u1ec7p v\u00e0 c\u00e1c c\u01a1 s\u1edf s\u1ea3n xu\u1ea5t.<\/span><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,2,0\"><span class=\"citation-3459 citation-end-3459\">Gi\u00e1m s\u00e1t tr\u1ea1ng th\u00e1i tr\u1ef1c quan: M\u1ed7i c\u1ee5m l\u1eafp r\u00e1p 749B \u0111\u1ec1u bao g\u1ed3m m\u1ed9t b\u1ed9 ch\u1ec9 th\u1ecb tr\u1ef1c ti\u1ebfp lo\u1ea1i 803.<\/span> Thi\u1ebft b\u1ecb \u0111o tr\u1ef1c quan n\u00e0y cung c\u1ea5p t\u00edn hi\u1ec7u r\u00f5 r\u00e0ng, \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a b\u1eb1ng m\u00e0u s\u1eafc cho ng\u01b0\u1eddi qu\u1ea3n l\u00fd c\u01a1 s\u1edf ho\u1eb7c nh\u00e2n vi\u00ean giao kh\u00ed, cho bi\u1ebft h\u1ec7 th\u1ed1ng \u0111ang s\u1eed d\u1ee5ng ngu\u1ed3n ch\u00ednh hay \u0111\u00e3 chuy\u1ec3n sang ngu\u1ed3n d\u1ef1 tr\u1eef.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,3,0\"><span class=\"citation-3458 citation-end-3458\">\u0110\u1ea1t ch\u1ee9ng nh\u1eadn an to\u00e0n UL: B\u1ed9 ph\u00e2n ph\u1ed1i Type 749B \u0111\u1ea1t ch\u1ee9ng nh\u1eadn c\u1ee7a Underwriters Laboratories (UL), \u0111\u1ea3m b\u1ea3o \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n an to\u00e0n v\u00e0 hi\u1ec7u su\u1ea5t nghi\u00eam ng\u1eb7t d\u00e0nh cho thi\u1ebft b\u1ecb kh\u00ed LP.<\/span> (L\u01b0u \u00fd: C\u00e1c b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh \u00e1p su\u1ea5t giai \u0111o\u1ea1n hai \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p v\u1edbi b\u1ed9 ph\u00e2n ph\u1ed1i n\u00e0y \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea ri\u00eang).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,4,0\">T\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng linh ho\u1ea1t: B\u1ed9 ph\u1eadn n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 giai \u0111o\u1ea1n gi\u1ea3m \u00e1p ch\u00ednh trong h\u1ec7 th\u1ed1ng nhi\u1ec1u giai \u0111o\u1ea1n. <span class=\"citation-3457 citation-end-3457\">N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p v\u1edbi b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh \u00e1p su\u1ea5t giai \u0111o\u1ea1n hai lo\u1ea1i HSRL ho\u1eb7c 64SR \u0111\u1ec3 cung c\u1ea5p \u00e1p su\u1ea5t \u0111\u1ea7u ra cu\u1ed1i c\u00f9ng cho t\u00f2a nh\u00e0 ho\u1eb7c thi\u1ebft b\u1ecb.<\/span><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,5,0\">C\u1ea5u tr\u00fac ch\u1eafc ch\u1eafn: \u0110\u01b0\u1ee3c ch\u1ebf t\u1ea1o \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p l\u1ef1c c\u1ee7a qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh \u0111a d\u1ea1ng, c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 b\u1ec1n cao, mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu tuy\u1ec7t v\u1eddi v\u1edbi c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng v\u00e0 t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a kh\u00ed LP.<\/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\">Ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng: Chuy\u1ec3n \u0111\u1ed5i t\u1ef1 \u0111\u1ed9ng.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,1,0\"><span class=\"citation-3456 citation-end-3456\">C\u1ea5u h\u00ecnh: Hai b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh \u0111i\u1ec7n \u00e1p d\u00f2ng 64 v\u1edbi \u0111\u00e8n b\u00e1o hi\u1ec7u lo\u1ea1i 803.<\/span><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,2,0\">C\u00f4ng su\u1ea5t: \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho t\u1ea3i nhi\u1ec7t BTU quy m\u00f4 l\u1edbn trong l\u0129nh v\u1ef1c th\u01b0\u01a1ng m\u1ea1i\/c\u00f4ng nghi\u1ec7p.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,3,0\">M\u00f4i ch\u1ea5t: Kh\u00ed LP (Propane).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,4,0\">\u1ee8ng d\u1ee5ng: Gi\u1ea3m \u00e1p su\u1ea5t giai \u0111o\u1ea1n \u0111\u1ea7u trong h\u1ec7 th\u1ed1ng hai c\u1ea5p.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,5,0\"><span class=\"citation-3455 citation-end-3455\">C\u00e1c ch\u1ec9 b\u00e1o: Hi\u1ec3n th\u1ecb tr\u1ef1c quan tr\u1ef1c ti\u1ebfp t\u00ecnh tr\u1ea1ng cung \u1ee9ng (\u0110ang s\u1eed d\u1ee5ng\/D\u1ef1 tr\u1eef).<\/span><\/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\">Lo\u1ea1i 749B l\u00e0 ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p cho b\u1ea5t k\u1ef3 c\u01a1 s\u1edf n\u00e0o m\u00e0 vi\u1ec7c thi\u1ebfu h\u1ee5t kh\u00ed \u0111\u1ed1t c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u1ed5n th\u1ea5t \u0111\u00e1ng k\u1ec3 v\u1ec1 ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c t\u00e0i ch\u00ednh.<\/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\">C\u00e1c c\u01a1 s\u1edf gi\u1eb7t \u1ee7i v\u00e0 nh\u00e0 b\u1ebfp th\u01b0\u01a1ng m\u1ea1i: \u0110\u1ea3m b\u1ea3o ngu\u1ed3n nhi\u00ean li\u1ec7u li\u00ean t\u1ee5c cho c\u00e1c m\u00e1y s\u1ea5y, l\u00f2 n\u01b0\u1edbng v\u00e0 m\u00e1y ph\u00e1t h\u01a1i n\u01b0\u1edbc quy m\u00f4 l\u1edbn.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,1,0\">Ho\u1ea1t \u0111\u1ed9ng n\u00f4ng nghi\u1ec7p: Cung c\u1ea5p ngu\u1ed3n kh\u00ed \u0111\u1ed1t \u0111\u00e1ng tin c\u1eady cho h\u1ec7 th\u1ed1ng s\u1ea5y ng\u0169 c\u1ed1c v\u00e0 s\u01b0\u1edfi \u1ea5m gia s\u00fac trong m\u00f9a v\u1ee5 cao \u0111i\u1ec3m.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,2,0\">Ng\u00e0nh kh\u00e1ch s\u1ea1n v\u00e0 b\u1ec7nh vi\u1ec7n: Duy tr\u00ec ngu\u1ed3n cung c\u1ea5p kh\u00ed \u0111\u1ed1t d\u1ef1 ph\u00f2ng cho h\u1ec7 th\u1ed1ng \u0111un n\u01b0\u1edbc n\u00f3ng v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n kh\u1ea9n c\u1ea5p.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,3,0\">Nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t: Cung c\u1ea5p nhi\u00ean li\u1ec7u li\u00ean t\u1ee5c cho c\u00e1c l\u00f2 x\u1eed l\u00fd nhi\u1ec7t v\u00e0 thi\u1ebft b\u1ecb gia nhi\u1ec7t trong quy tr\u00ecnh s\u1ea3n xu\u1ea5t.<\/p>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>B\u1ed9 chia kh\u00ed t\u1ef1 \u0111\u1ed9ng Fisher Type 749B l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb ch\u1ecbu t\u1ea3i n\u1eb7ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c h\u1ec7 th\u1ed1ng kh\u00ed LP-Gas th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00f4ng nghi\u1ec7p c\u00f3 nhu c\u1ea7u cao. Thi\u1ebft b\u1ecb n\u00e0y \u0111\u1ea3m b\u1ea3o cung c\u1ea5p kh\u00ed li\u00ean t\u1ee5c, kh\u00f4ng gi\u00e1n \u0111o\u1ea1n b\u1eb1ng c\u00e1ch t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n t\u1eeb b\u00ecnh kh\u00ed d\u1ef1 tr\u1eef \u0111\u00e3 c\u1ea1n sang b\u00ecnh kh\u00ed d\u1ef1 ph\u00f2ng khi \u00e1p su\u1ea5t trong ngu\u1ed3n ch\u00ednh gi\u1ea3m xu\u1ed1ng d\u01b0\u1edbi m\u1ed9t ng\u01b0\u1ee1ng nh\u1ea5t \u0111\u1ecbnh. \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady trong c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng, 749B lo\u1ea1i b\u1ecf s\u1ef1 can thi\u1ec7p th\u1ee7 c\u00f4ng v\u00e0 ng\u0103n ng\u1eeba th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng t\u1ed1n k\u00e9m do c\u1ea1n ki\u1ec7t nhi\u00ean li\u1ec7u.<\/p>","protected":false},"author":1,"featured_media":4694,"parent":0,"menu_order":627,"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":[311,314],"brands":[112,308],"model_series":[],"industries":[],"product_cat":[309],"class_list":["post-4693","products","type-products","status-publish","format-standard","has-post-thumbnail","hentry","tag-fisher","tag-regulators-relief-valves","brands-fisher","brands-regulators-relief-valves","product_cat-regulators-relief-valves"],"acf":{"body_sizes_and_end_connection_styles":"Body Size: 1\/2 NPT","temperature_capabilities":"-20\u00b0 to 160\u00b0F \/ -29\u00b0 to 71\u00b0C","maximum_inlet_pressure":"250 psig \/ 17,2 bar","maximum_outlet_pressures":"Maximum Emergency Outlet Pressure:\r\nFor Type 64 Regulators Used: 220 psig \/ 15,2 bar\r\nFor Type HSRL Final Stage Regulator: 3 psig \/ 0,21 bar","outlet_pressure_ranges":"","pressure_registration":"","available_low_pressure_configurations":"","available_high_pressure_configurations":"","available_pressure_differential_configurations":"","body_and_spring_case_materials":"","approximate_weights":"","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":4695,"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>Buy Fisher Type 749B | Original Brand New<\/title>\n<meta name=\"description\" content=\"Searching for a trusted Fisher Type 749B supplier? 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