{"id":1089,"date":"2026-09-17T23:00:16","date_gmt":"2026-09-17T15:00:16","guid":{"rendered":"https:\/\/ll-transmitter.com\/?post_type=product&p=1089"},"modified":"2026-09-17T23:00:16","modified_gmt":"2026-09-17T15:00:16","slug":"fisher-249-level-controller-249b-249c-249k-249l-249p-249bp-249cp-249vs-249w","status":"publish","type":"product","link":"https:\/\/ll-transmitter.com\/ar\/product\/fisher-249-level-controller-249b-249c-249k-249l-249p-249bp-249cp-249vs-249w\/","title":{"rendered":"Fisher 249 Level Controller 249B 249C 249K 249L 249P 249BP 249CP 249VS 249W"},"content":{"rendered":"

Fisher 249 Level Controller<\/strong><\/p>\n

Fisher 249 is an external float type liquid level sensor based on Archimedes’ buoyancy principle, used to measure liquid level, boundary position, and density; Used in conjunction with a 2500 pneumatic controller or DLC3010 digital liquid level transmitter.
\nCore differentiation dimensions: cylinder material, pressure rating, connection form, presence or absence of cylinder (cage) with cage models include 249B, 249C, 249K, 249L, 249P, 249BP, 249CP, and 249VS. Only the 249W series does not have a cage.<\/p>\n

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249B 249C 249K 249L 249P 249BP 249CP 249VS 249W core parameter differences<\/span><\/h6>\n
\n\n\n\n\n\n\n\n\n\n\n\n
Model<\/th>\nCage Material<\/th>\nPressure Rating (ASME)<\/th>\nConnection Type<\/th>\nKey Features<\/th>\nApplications<\/th>\n<\/tr>\n<\/thead>\n
249 (Basic)<\/strong><\/td>\nCast iron<\/td>\nCL125 \/ CL250<\/td>\nThreaded \/ flanged NPS 1-1\/2, 2<\/td>\nBasic cast iron cage; displacer available in only two lengths (14 \/ 32 in), limited displacer length options<\/td>\nLow-pressure, non-corrosive water \/ oil service; legacy installations<\/td>\n<\/tr>\n
249B<\/strong><\/td>\nCarbon steel<\/td>\nCL150, 300, 600<\/td>\nThreaded \/ socket weld \/ flanged RF<\/td>\nCarbon steel cage; threaded and flanged options; globally available; full displacer length range (14-120 in)<\/td>\nPetrochemical, medium-pressure general media; most common choice for domestic projects<\/td>\n<\/tr>\n
249BF<\/strong><\/td>\nCast steel \/ stainless steel<\/td>\nCL150, 300, 600<\/td>\nFlanged only (DIN PN)<\/td>\nSupplied only in Europe, Middle East, Africa (EMA) region; PED certified; flanged only, no threaded connections<\/td>\nEU projects requiring PED pressure equipment certification<\/td>\n<\/tr>\n
249C<\/strong><\/td>\n316 stainless steel<\/td>\nCL150, 300, 600<\/td>\nThreaded \/ flanged RF<\/td>\nAll-stainless cage, corrosion-resistant; supports both threaded and flanged; globally available<\/td>\nCorrosive process media: acids, salts, seawater, etc.<\/td>\n<\/tr>\n
249K<\/strong><\/td>\nCarbon steel<\/td>\nCL900, CL1500<\/td>\nFlanged RF \/ RTJ ring-type joint<\/td>\nFlanged only, no threaded; high-pressure rating, supports RTJ metal ring gasket flanges<\/td>\nHigh-pressure process services<\/td>\n<\/tr>\n
249L<\/strong><\/td>\nCarbon steel<\/td>\nCL2500<\/td>\nRTJ ring-joint flanged only<\/td>\nHighest pressure rating in the series (CL2500); ring-groove flanged connection only<\/td>\nUltra-high-pressure services<\/td>\n<\/tr>\n
249W<\/strong><\/td>\nCarbon steel<\/td>\nCL150, 300, 600<\/td>\nNPS 3 \/ NPS 4 wafer (flangeless)<\/td>\nCage-less (no external chamber) wafer-type displacer, compact body; requires user-supplied external displacer chamber to mount the displacer<\/td>\nSpace-constrained applications where the site provides its own vessel \/ chamber<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

249B and 249BF (NPS 1\u20101\/2 and 2 End Connections)<\/strong><\/p>\n

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249C and 249K (NPS 1\u201012 and 2 End Connections)<\/strong><\/p>\n

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249L<\/strong><\/p>\n

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Important commonalities<\/span><\/h6>\n
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Except for 249W, all of them are cage body (external float cavity) structures with built-in balance nozzles and liquid damping holes to suppress disturbances and prevent oscillations; Blade edge bearings have low friction and the torque tube can be replaced separately without disassembling the entire Emerson machine.
\nStandard interface size: NPS1-1\/2, NPS2; The head of the cage can rotate at 8 angles, making it convenient for docking with transmitters\/controllers.
\nThe float material can be selected from 316SS, Monel, Hastelloy, etc., depending on the corrosion of the medium.
\nOutput: It is only a mechanical sensor and cannot be used alone; Backend configuration:
\n2500 series: Pneumatic liquid level controller (outputting pneumatic signals)
\nFisher DLC3010<\/a>\/DLC3100<\/a>: Digital liquid level transmitter, outputting 4-20mA+HART signal<\/p>\n

Fisher 249 Series Quick Selection Suggestions<\/span><\/h6>\n
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For users of conventional petrochemical and ordinary oil products \u2192 249B (carbon steel, CL150\/300\/600\uff0c Threads or flanges)
\nCorrosive medium \u2192 249C (316 stainless steel cage)
\nHigh voltage CL900-1500 \u2192 249K; ultra-high voltage CL2500 \u2192 249L
\nThe European project requires PED \u2192 249BF (isher 249BF cannot be provided in China)
\nThere is already a cylinder on site, no need to bring a cage \u2192 249W (cage free clamp type)<\/p>\n

Introduction of Xi \u2018an Lilu Trading Co., LTD<\/span><\/strong>
\nXi \u2018an Lilu Trading Co., Ltd. is a professional import and export focus on transmitter, flow meter, positioner instrument industry provider. We have a huge advantage in the following brand ROSEMOUNT, YOKOGAWA, HONEYWELL, SMC, IMI NORGREN, ABB, ENDRESS + HAUSER, FISHER, YTC, AZBIL, SIEMENS, SCHNEIDER and some European brands.
We look forward to your inquiry and hope that we can start the best cooperation.<\/p>\n

Phone: +86-18392971088
Email:\u00a0inquiry@lilutrading.com<\/a>
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