[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ custom_padding_last_edited=”on|phone” _builder_version=”4.27.5″ _module_preset=”default” background_color=”#E12028″ use_background_color_gradient=”on” background_color_gradient_direction=”90deg” background_color_gradient_stops=”#aa111b 0%|#e12028 71%” custom_margin=”||||false|false” custom_margin_tablet=”||||false|false” custom_margin_phone=”||||false|false” custom_margin_last_edited=”off|desktop” custom_padding=”3rem|4vw|4rem|4vw|false|true” custom_padding_tablet=”||3rem||false|true” custom_padding_phone=”2rem||||false|true” top_divider_style=”slant2″ top_divider_color=”rgba(124,2,10,0.21)” top_divider_height=”225px” top_divider_flip=”horizontal” bottom_divider_style=”slant2″ bottom_divider_color=”#FFFFFF” bottom_divider_height=”20px” bottom_divider_flip=”vertical” locked=”off” global_colors_info=”{}” custom_padding__hover_enabled=”off|desktop”][et_pb_row column_structure=”1_2,1_2″ use_custom_gutter=”on” gutter_width=”4″ make_equal=”on” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”0px||0px||false|false” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_heading title=”Laminar Differential Pressure (DP) Flow Devices ” _builder_version=”4.27.5″ _module_preset=”default” title_text_color=”#FFFFFF” title_font_size=”34px” title_letter_spacing=”0.2px” title_line_height=”1.4em” custom_margin=”||0px||false|false” custom_margin_tablet=”||0px||false|false” custom_margin_phone=”||0px||false|false” custom_margin_last_edited=”off|desktop” title_font_size_tablet=”34px” title_font_size_phone=”29px” title_font_size_last_edited=”on|phone” custom_css_main_element=”text-wrap: pretty;” global_colors_info=”{}”][\/et_pb_heading][et_pb_heading title=”Multi-variate sensing of pressure, temperature, and flow in one device” _builder_version=”4.27.4″ _module_preset=”default” title_level=”h2″ title_font=”|300|||||||” title_text_color=”#FFFFFF” title_font_size=”29px” title_letter_spacing=”0.2px” title_line_height=”1.2em” custom_margin=”||1rem||false|false” custom_margin_tablet=”||1rem||false|false” custom_margin_phone=”||0rem||false|false” custom_margin_last_edited=”on|phone” custom_padding=”||||false|false” title_font_size_tablet=”29px” title_font_size_phone=”25px” title_font_size_last_edited=”on|phone” global_colors_info=”{}”][\/et_pb_heading][et_pb_image src=”https:\/\/www.alicat.com\/wp-content\/uploads\/2025\/12\/laminar-group-prod.webp” alt=”Photo of several Alicat laminar differential pressure devices” title_text=”fusion-flow-mxm-and-fusion-flow-imx” align=”center” disabled_on=”off|on|on” _builder_version=”4.27.5″ _module_preset=”default” custom_margin=”2rem||2rem||true|false” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” text_text_color=”#FFFFFF” text_font_size=”18px” text_line_height=”1.8em” custom_margin=”||0px||false|false” custom_margin_tablet=”||2rem||false|false” custom_margin_phone=”||0rem||false|false” custom_margin_last_edited=”on|phone” global_colors_info=”{}”]<\/p>\n
Alicat\u00ae Scientific\u2019s laminar differential pressure (DP) technology is the core measurement principle behind our mainline mass flow meters and mass flow controllers, trusted for speed, stability, and precision measurement. Converting turbulent flow into smooth laminar flow and applying the Poiseuille principle, our instruments deliver fast, stable, and highly accurate flow data for gases and liquids. Their highspeed measurements and control are favored for R&D, manufacturing, advanced energy systems\u2014and more.<\/p>\n
[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” custom_css_main_element=”margin: auto;” global_colors_info=”{}”][et_pb_image src=”https:\/\/www.alicat.com\/wp-content\/uploads\/2025\/12\/laminar-group-prod.webp” alt=”Photo of several Alicat laminar differential pressure devices” title_text=”fusion-flow-mxm-and-fusion-flow-imx” align=”center” disabled_on=”on|off|off” _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row use_custom_gutter=”on” gutter_width=”2″ module_class=”pa-inline-buttons” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”2rem||0px||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” custom_css_main_element=”text-align: center;” global_colors_info=”{}”][et_pb_button button_url=”https:\/\/www.alicat.com\/quote-request\/?form_quote_option=I%20want%20to%20discuss%20gas%20mixing%20options.” button_text=”Request a Quote” button_alignment_tablet=”center” button_alignment_phone=”” button_alignment_last_edited=”on|desktop” module_class=”ga_event_link_click_lead btn_transform_on_click” _builder_version=”4.27.4″ _module_preset=”default” custom_button=”on” button_text_size=”14px” button_text_color=”#E12028″ button_bg_color=”#FFFFFF” button_border_color=”#E12028″ button_icon=”||fa||900″ button_icon_color=”#E12028″ button_icon_placement=”left” button_on_hover=”off” custom_margin=”|1rem|0px||false|false” custom_padding=”7px|15px|7px|32px|true|false” custom_css_before=”margin: 0 0 0 -20px !important;” global_module=”46024″ saved_tabs=”all” locked=”off” global_colors_info=”{}” button_icon_color__hover_enabled=”on|hover” button_icon_color__hover=”#2A3B47″ button_border_color__hover_enabled=”on|hover” button_border_color__hover=”#2A3B47″ button_text_color__hover_enabled=”on|hover” button_text_color__hover=”#2A3B47″ button_bg_color__hover_enabled=”on|hover” button_bg_color__hover=”#FFFFFF” button_bg_enable_color__hover=”on”][\/et_pb_button][et_pb_button button_url=”#ask-an-engineer-form” button_text=”Ask an Engineer” button_text_tablet=”Help me choose what is best for my application” button_text_phone=”What is best for my application?” button_text_last_edited=”off|desktop” module_class=”btn_transform_on_click ga_event_link_click_lead vwo-event-btn-click-ask-an-engineer” _builder_version=”4.27.5″ _module_preset=”default” custom_button=”on” button_text_size=”14px” button_text_color=”#E12028″ button_bg_color=”#FFFFFF” button_letter_spacing=”0px” button_icon=”||fa||900″ button_icon_color=”#E12028″ button_icon_placement=”left” button_on_hover=”off” custom_margin=”|||1rem|false|false” custom_padding=”7px|15px|7px|35px|true|false” custom_padding_tablet=”9px|25px|9px|25px|true|true” custom_padding_phone=”9px|10px|9px|10px|true|true” custom_padding_last_edited=”off|phone” button_text_size_tablet=”14px” button_text_size_phone=”14px” button_text_size_last_edited=”off|phone” custom_css_before=”margin: 0 0 0 -25px !important;” global_module=”45689″ saved_tabs=”all” locked=”off” global_colors_info=”{}” button_text_color__hover_enabled=”on|hover” button_text_color__hover=”#2A3B47″ button_icon_color__hover_enabled=”on|hover” button_icon_color__hover=”#597084″][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.5″ _module_preset=”default” custom_padding=”3rem|4vw|3rem|4vw|true|true” locked=”off” global_colors_info=”{}”][et_pb_row column_structure=”1_2,1_2″ use_custom_gutter=”on” gutter_width=”2″ custom_padding_last_edited=”on|phone” module_class=”row-reorder-mobile row-reorder-tablet” _builder_version=”4.27.5″ _module_preset=”default” custom_margin=”||||false|false” custom_padding=”0px||0px||false|true” custom_padding_tablet=”0px|2vw|0px|2vw|false|true” custom_padding_phone=”|0vw||0vw|false|true” global_colors_info=”{}”][et_pb_column type=”1_2″ module_class=”second-on-mobile second-on-tablet” _builder_version=”4.27.5″ _module_preset=”default” custom_padding_tablet=”2rem||||false|false” custom_padding_phone=”2rem||||false|false” custom_padding_last_edited=”on|tablet” global_colors_info=”{}”][et_pb_video src=”https:\/\/youtu.be\/Yp7hRo7clUs” disabled_on=”off|off|off” _builder_version=”4.27.5″ _module_preset=”default” custom_margin=”8px||||false|false” global_colors_info=”{}”][\/et_pb_video][\/et_pb_column][et_pb_column type=”1_2″ module_class=”first-on-mobile first-on-tablet” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” header_2_font=”|300|||||||” header_2_text_color=”#C11B29″ header_2_font_size=”30px” custom_margin=”||0px||false|false” custom_padding=”||||false|false” header_2_font_size_tablet=”30px” header_2_font_size_phone=”25px” header_2_font_size_last_edited=”on|phone” global_colors_info=”{}”]<\/p>\n
Benefits of laminar DP flow technology<\/h2>\n
[\/et_pb_text][et_pb_divider show_divider=”off” _builder_version=”4.27.4″ _module_preset=”default” background_color=”RGBA(255,255,255,0)” use_background_color_gradient=”on” background_color_gradient_direction=”90deg” background_color_gradient_stops=”#2a3b47 67%|#ffffff 95%” max_width=”100%” height=”2.5px” custom_margin=”5px||15px||false|false” custom_padding=”0px||0px||false|false” border_radii=”on|2px|2px|2px|2px” locked=”off” global_colors_info=”{}”][\/et_pb_divider][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” text_font_size=”16px” text_line_height=”1.8em” custom_margin=”||||false|false” custom_margin_tablet=”||1rem||false|false” custom_margin_phone=”||1rem||false|false” custom_margin_last_edited=”on|tablet” global_colors_info=”{}”]Laminar DP flow measurement combines precision physics with responsive engineering.<\/p>\n
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- Multi-Variate<\/span>: Mass flow, volumetric flow, pressure, and temperature, all in one device<\/li>\n
- Versatile gas compatibility<\/span>: Select from up to 130 gas calibrations, or blend up to 5<\/li>\n
- Ultra-fast response<\/span>: < 5 ms measurement; ~30 ms control response; 1 s warm-up time<\/li>\n
- Wide dynamic range<\/span>: 0.01% to 100% of full scale, up to 10,000:1<\/li>\n
- Optimized control<\/span>: Factory-tuned PID with in-situ autotune<\/a> for fast, stable control<\/li>\n
- Pressure control loop<\/span>: switch to measure mass flow rates while controlling on pressure<\/em> settings<\/li>\n
- Proven reliability<\/span>: Trusted globally in research, manufacturing, aerospace environments and more<\/li>\n<\/ul>\n
Choosing the right flow technology.<\/span> Each flow measurement technology offers unique strengths. Compare Laminar DP, Coriolis (CODA), and Thermal MEMS (Basis) to find the right fit for your application.[\/et_pb_text][et_pb_text module_class=”cta-link” _builder_version=”4.27.5″ _module_preset=”default” text_font=”|700|||||||” text_font_size=”16px” text_line_height=”1.8em” custom_margin=”||||false|false” locked=”off” global_colors_info=”{}”]<\/p>\n
Read more: Flow technology comparison $<\/span><\/a><\/p>\n
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How laminar flow differential pressure enables\u00a0mass flow measurement
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What is laminar flow?<\/h3>\n
In fluid dynamics, flow can be turbulent (chaotic and unpredictable) or laminar (smooth and orderly). Laminar flow is easier to model and measure because velocity is distributed in predictable layers.<\/pee> Read more: Laminar vs. turbulent<\/a><\/pee> Understanding laminar flow is key to Alicat\u2019s precision. Our laminar flow elements (LFEs) convert turbulent gas or liquid into laminar flow, creating a linear relationship between pressure drop and flow rate. Combined with temperature and absolute pressure sensors, this enables mass flow calculations for known viscosities, not just volumetric readings.<\/pee> alt=”Laminar Flow Measurement Explainer” height=”326″ src=”https:\/\/www.alicat.com\/wp-content\/uploads\/2025\/05\/measurement-explainer-split-laminar.jpg” width=”326″> <\/p>\n
How laminar DP instruments work<\/h3>\n
Alicat laminar DP devices measure mass flow by combining differential pressure, absolute pressure, and temperature readings with the Poiseuille equation.<\/pee><\/p>\n - Versatile gas compatibility<\/span>: Select from up to 130 gas calibrations, or blend up to 5<\/li>\n