{"id":69002,"date":"2023-05-29T09:57:51","date_gmt":"2023-05-29T09:57:51","guid":{"rendered":"https:\/\/www.aircontrolindustries.com\/?p=69002"},"modified":"2024-04-18T13:41:18","modified_gmt":"2024-04-18T13:41:18","slug":"fan-performance-and-testing","status":"publish","type":"post","link":"https:\/\/www.aircontrolindustries.com\/us\/technical\/fan-performance-and-testing\/","title":{"rendered":"Fan Performance and Testing"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; background_image=&#8221;https:\/\/www.aircontrolindustries.com\/wp-content\/uploads\/2023\/05\/Homepage.jpg&#8221; background_position=&#8221;bottom_center&#8221; background_vertical_offset=&#8221;16%&#8221; width=&#8221;100%&#8221; min_height=&#8221;500px&#8221; custom_margin=&#8221;||23px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; custom_padding_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;90%&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;-60px|0px||0px|false|true&#8221; custom_padding=&#8221;|0px||0px|false|false&#8221; custom_padding_tablet=&#8221;|0px||0px|false|false&#8221; custom_padding_phone=&#8221;10px|0px||0px|false|false&#8221; border_radii=&#8221;on|10px|10px|10px|10px&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.19.4&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|tablet&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;15px|0px|15px|20px|false|false&#8221; custom_margin_tablet=&#8221;15px|40px||60px|false|false&#8221; custom_margin_phone=&#8221;15px|40px||60px|false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;0px|0px|0px|32px|false|false&#8221; custom_padding_tablet=&#8221;|||0px|false|false&#8221; custom_padding_phone=&#8221;|||0px|false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;30px&#8221; text_line_height=&#8221;1.1em&#8221; header_text_color=&#8221;#003366&#8243; header_font_size=&#8221;25px&#8221; header_2_font_size=&#8221;25px&#8221; custom_margin=&#8221;0px||25px||false|false&#8221; custom_margin_tablet=&#8221;0px||30px||false|false&#8221; custom_margin_phone=&#8221;0px||30px||false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;20px||||false|false&#8221; custom_padding_tablet=&#8221;20px||||false|false&#8221; custom_padding_phone=&#8221;20px||||false|false&#8221; custom_padding_last_edited=&#8221;on|desktop&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2><span style=\"color: #c8963e;\">Airflow\/Volume, Air Pressure and Fan Motor Power<\/span><\/h2>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|70px|||false|false&#8221; custom_padding_tablet=&#8221;|0px|||false|false&#8221; custom_padding_phone=&#8221;|0px|||false|false&#8221; custom_padding_last_edited=&#8221;on|tablet&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]The performance of any fan \u2013 centrifugal or otherwise \u2013 comes down to three inter-related factors:<\/p>\n<ul>\n<li>Airflow \u2013 how much air will the fan move in a given period of time?<\/li>\n<li>Pressure \u2013 how much (or how little) force is needed to move the air from one place to another?<\/li>\n<li>Power \u2013 how much energy is required to create the pressure needed to move the air?<\/li>\n<\/ul>\n<p>Let\u2019s examine these factors in more detail\u2026[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|tablet&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;25px|19px|25px|20px|false|false&#8221; custom_margin_tablet=&#8221;15px|40px||60px|false|false&#8221; custom_margin_phone=&#8221;15px|40px||60px|false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;0px|0px|0px|32px|false|false&#8221; custom_padding_tablet=&#8221;|||0px|false|false&#8221; custom_padding_phone=&#8221;|||0px|false|false&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;30px&#8221; text_line_height=&#8221;1.1em&#8221; header_text_color=&#8221;#003366&#8243; header_font_size=&#8221;25px&#8221; header_2_font_size=&#8221;25px&#8221; custom_margin=&#8221;0px||0px||false|false&#8221; custom_margin_tablet=&#8221;0px||30px||false|false&#8221; custom_margin_phone=&#8221;0px||0px||false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;20px||0px||false|false&#8221; custom_padding_tablet=&#8221;20px||||false|false&#8221; custom_padding_phone=&#8221;20px||||false|false&#8221; custom_padding_last_edited=&#8221;on|desktop&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2><span style=\"color: #c8963e;\"><strong>Airflow<\/strong><\/span><\/h2>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;3_5,2_5&#8243; custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.19.4&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|tablet&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;10px|19px|8px|20px|false|false&#8221; custom_margin_tablet=&#8221;15px|40px||60px|false|false&#8221; custom_margin_phone=&#8221;15px|40px||60px|false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;9px|0px|3px|32px|false|false&#8221; custom_padding_tablet=&#8221;|||0px|false|false&#8221; custom_padding_phone=&#8221;|||0px|false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;3_5&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; width=&#8221;90.1%&#8221; custom_padding=&#8221;|34px|||false|false&#8221; custom_padding_tablet=&#8221;|30px|||false|false&#8221; custom_padding_phone=&#8221;|0px|||false|false&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]Airflow refers to the movement or circulation of air caused by a fan or blower. It is typically measured in terms of volume per unit of time, usually cubic metres per hour (m\u00b3\/h) or cubic feet per minute (CFM). Airflow in fan engineering is influenced by several factors including the:<\/p>\n<ul>\n<li>shape and size of the fan<\/li>\n<li>rotational speed of the fan\u2019s impeller<\/li>\n<li>shape and size of the impeller blades<\/li>\n<li>resistance or pressure against which the fan is working.<\/li>\n<\/ul>\n<p>These factors collectively determine the fan\u2019s ability to move air effectively and efficiently. It&#8217;s important to understand the concept of airflow in fan engineering, as it is a critical parameter that impacts the performance, efficiency and specification of fans for all the various applications. Airflow calculations and performance curves enable us to determine the appropriate fan size and type for your given application \u2013 taking into consideration factors such as the desired airflow rate, pressure requirements, and efficiency.[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;2_5&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.aircontrolindustries.com\/wp-content\/uploads\/2023\/05\/MR-Compilation-Graph-1.jpg&#8221; alt=&#8221;Chart showing various MR fan airflow and pressure&#8221; title_text=&#8221;MR Compilation Graph&#8221; url=&#8221;https:\/\/www.aircontrolindustries.com\/wp-content\/uploads\/2023\/05\/MR-Compilation-Graph-1.jpg&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;85%&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;0px||||false|false&#8221; custom_padding=&#8221;25px||0px||false|false&#8221; border_radii=&#8221;on|4px|4px|4px|4px&#8221; border_color_all=&#8221;#D6D6D6&#8243; box_shadow_style=&#8221;preset2&#8243; box_shadow_color=&#8221;#D6D6D6&#8243; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|tablet&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;25px|19px|25px|20px|false|false&#8221; custom_margin_tablet=&#8221;15px|40px||60px|false|false&#8221; custom_margin_phone=&#8221;15px|40px||60px|false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;0px|0px|0px|32px|false|false&#8221; custom_padding_tablet=&#8221;|||0px|false|false&#8221; custom_padding_phone=&#8221;|||0px|false|false&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;30px&#8221; text_line_height=&#8221;1.1em&#8221; header_text_color=&#8221;#003366&#8243; header_font_size=&#8221;25px&#8221; header_2_font_size=&#8221;25px&#8221; custom_margin=&#8221;0px||0px||false|false&#8221; custom_margin_tablet=&#8221;0px||30px||false|false&#8221; custom_margin_phone=&#8221;0px||0px||false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;20px||0px||false|false&#8221; custom_padding_tablet=&#8221;20px||||false|false&#8221; custom_padding_phone=&#8221;20px||||false|false&#8221; custom_padding_last_edited=&#8221;on|desktop&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2><span style=\"color: #c8963e;\"><strong>Pressure<\/strong><\/span><\/h2>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|tablet&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;15px|0px|40px|20px|false|false&#8221; custom_margin_tablet=&#8221;15px|40px||60px|false|false&#8221; custom_margin_phone=&#8221;15px|40px||60px|false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;0px||0px|32px|false|false&#8221; custom_padding_tablet=&#8221;|||0px|false|false&#8221; custom_padding_phone=&#8221;|||0px|false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|70px|||false|false&#8221; custom_padding_tablet=&#8221;|30px|||false|false&#8221; custom_padding_phone=&#8221;|0px|||false|false&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]Air pressure is defined as the force per unit area exerted by air against a surface perpendicular to the direction of airflow. It represents the resistance or opposition that the air encounters as it moves through a fan, duct or system. Higher air pressure typically indicates higher resistance to airflow, while lower air pressure indicates lower resistance. There are three types of air pressure:<\/p>\n<ul>\n<li>Static pressure \u2013 this is particularly significant. It is the pressure of the air (in a duct or system) when it is at rest or not in motion.<\/li>\n<li>Static pressure can be measured at various points in a duct or system, such as before and after a fan, at bends or elbows in the ducting, or at other points of restriction. The difference between the static pressure at two points is known as the pressure drop or pressure loss, and it is an important parameter used to evaluate the output and efficiency of a fan system.<\/li>\n<li>Dynamic pressure (aka velocity pressure) \u2013 the pressure of the air due to its motion. This pressure is a measure of the kinetic energy of the moving air. It is used to determine the dynamic effects of air movement, such as the impact of velocity on duct design, fan selection and system performance.<\/li>\n<li>Total Pressure \u2013 is the sum of the static pressure and the dynamic pressure of the air. It represents the total energy of the air in a duct or system. Total pressure is an important parameter in fan engineering as it indicates the total resistance that the fan needs to overcome to move the air through a system.<\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_3,1_3,1_3&#8243; custom_padding_last_edited=&#8221;on|desktop&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#1C6992&#8243; width=&#8221;100%&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;98%&#8221; width_last_edited=&#8221;on|phone&#8221; module_alignment=&#8221;center&#8221; custom_padding=&#8221;|54px|15px|96px|false|false&#8221; custom_padding_tablet=&#8221;|25px|0px|25px|false|true&#8221; custom_padding_phone=&#8221;|15px|1px|15px|false|true&#8221; module_alignment_tablet=&#8221;center&#8221; module_alignment_phone=&#8221;center&#8221; module_alignment_last_edited=&#8221;on|phone&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221; text_orientation_tablet=&#8221;center&#8221; text_orientation_phone=&#8221;center&#8221; text_orientation_last_edited=&#8221;on|desktop&#8221;][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.aircontrolindustries.com\/wp-content\/uploads\/2023\/05\/Volumetric-Flow.jpg&#8221; alt=&#8221;Chart demonstrating a fan volumetric flow&#8221; title_text=&#8221;Volumetric Flow&#8221; url=&#8221;https:\/\/www.aircontrolindustries.com\/wp-content\/uploads\/2023\/05\/Volumetric-Flow.jpg&#8221; align_tablet=&#8221;center&#8221; align_phone=&#8221;left&#8221; align_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;RGBA(255,255,255,0)&#8221; width=&#8221;85%&#8221; width_tablet=&#8221;100%&#8221; width_phone=&#8221;100%&#8221; width_last_edited=&#8221;on|tablet&#8221; box_shadow_style=&#8221;preset4&#8243; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; text_orientation=&#8221;center&#8221; width=&#8221;85%&#8221; module_alignment=&#8221;center&#8221; custom_padding=&#8221;|60px|1px|0px|false|false&#8221; custom_padding_tablet=&#8221;|60px|1px|0px|false|false&#8221; custom_padding_phone=&#8221;|0px|1px|0px|false|false&#8221; custom_padding_last_edited=&#8221;on|desktop&#8221; text_orientation_tablet=&#8221;center&#8221; text_orientation_phone=&#8221;center&#8221; text_orientation_last_edited=&#8221;on|desktop&#8221; module_alignment_tablet=&#8221;center&#8221; module_alignment_phone=&#8221;left&#8221; module_alignment_last_edited=&#8221;on|phone&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]<span style=\"color: #ffffff;\"><strong>Volumetric Flow<\/strong><\/span>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|0px||0px|false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.aircontrolindustries.com\/wp-content\/uploads\/2023\/05\/Motor-Current-1.jpg&#8221; alt=&#8221;Graph showing fan motor current &#8221; title_text=&#8221;Motor Current&#8221; url=&#8221;https:\/\/www.aircontrolindustries.com\/wp-content\/uploads\/2023\/05\/Motor-Current-1.jpg&#8221; align_tablet=&#8221;center&#8221; align_phone=&#8221;left&#8221; align_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;RGBA(255,255,255,0)&#8221; width=&#8221;85%&#8221; width_tablet=&#8221;100%&#8221; width_phone=&#8221;100%&#8221; width_last_edited=&#8221;on|tablet&#8221; box_shadow_style=&#8221;preset4&#8243; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; text_orientation=&#8221;center&#8221; width=&#8221;85%&#8221; module_alignment=&#8221;center&#8221; custom_padding=&#8221;|60px|1px|0px|false|false&#8221; custom_padding_tablet=&#8221;|60px|1px|0px|false|false&#8221; custom_padding_phone=&#8221;|0px|1px|0px|false|false&#8221; custom_padding_last_edited=&#8221;on|desktop&#8221; text_orientation_tablet=&#8221;center&#8221; text_orientation_phone=&#8221;center&#8221; text_orientation_last_edited=&#8221;on|desktop&#8221; module_alignment_tablet=&#8221;center&#8221; module_alignment_phone=&#8221;left&#8221; module_alignment_last_edited=&#8221;on|phone&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\"><strong>Motor Current<\/strong><\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.aircontrolindustries.com\/wp-content\/uploads\/2023\/05\/Fan-Speed-1.jpg&#8221; alt=&#8221;Chart showing a fan speed&#8221; title_text=&#8221;Fan Speed&#8221; url=&#8221;https:\/\/www.aircontrolindustries.com\/wp-content\/uploads\/2023\/05\/Fan-Speed-1.jpg&#8221; align_tablet=&#8221;center&#8221; align_phone=&#8221;left&#8221; align_last_edited=&#8221;on|phone&#8221; admin_label=&#8221;Petrochemical&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;RGBA(255,255,255,0)&#8221; width=&#8221;85%&#8221; width_tablet=&#8221;100%&#8221; width_phone=&#8221;100%&#8221; width_last_edited=&#8221;on|tablet&#8221; box_shadow_style=&#8221;preset4&#8243; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; text_orientation=&#8221;center&#8221; width=&#8221;85%&#8221; module_alignment=&#8221;center&#8221; custom_padding=&#8221;|60px|1px|0px|false|false&#8221; custom_padding_tablet=&#8221;|60px|1px|0px|false|false&#8221; custom_padding_phone=&#8221;|0px|1px|0px|false|false&#8221; custom_padding_last_edited=&#8221;on|desktop&#8221; text_orientation_tablet=&#8221;center&#8221; text_orientation_phone=&#8221;center&#8221; text_orientation_last_edited=&#8221;on|desktop&#8221; module_alignment_tablet=&#8221;center&#8221; module_alignment_phone=&#8221;left&#8221; module_alignment_last_edited=&#8221;on|phone&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\"><strong>Fan Speed<\/strong><\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|tablet&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;25px|19px|25px|20px|false|false&#8221; custom_margin_tablet=&#8221;15px|40px||60px|false|false&#8221; custom_margin_phone=&#8221;15px|40px||60px|false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;0px|0px|0px|32px|false|false&#8221; custom_padding_tablet=&#8221;|||0px|false|false&#8221; custom_padding_phone=&#8221;|||0px|false|false&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;30px&#8221; text_line_height=&#8221;1.1em&#8221; header_text_color=&#8221;#003366&#8243; header_font_size=&#8221;25px&#8221; header_2_font_size=&#8221;25px&#8221; custom_margin=&#8221;0px||0px||false|false&#8221; custom_margin_tablet=&#8221;0px||30px||false|false&#8221; custom_margin_phone=&#8221;0px||0px||false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;20px||0px||false|false&#8221; custom_padding_tablet=&#8221;20px||||false|false&#8221; custom_padding_phone=&#8221;20px||||false|false&#8221; custom_padding_last_edited=&#8221;on|desktop&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2><span style=\"color: #c8963e;\"><strong>Measuring Air Pressure<\/strong><\/span><\/h2>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;3_5,2_5&#8243; custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.19.4&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|tablet&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;25px|19px|40px|20px|false|false&#8221; custom_margin_tablet=&#8221;15px|40px||60px|false|false&#8221; custom_margin_phone=&#8221;15px|40px||60px|false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;5px|0px|13px|32px|false|false&#8221; custom_padding_tablet=&#8221;|||0px|false|false&#8221; custom_padding_phone=&#8221;|||0px|false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;3_5&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; width=&#8221;90.3%&#8221; custom_margin=&#8221;|8px|||false|false&#8221; custom_margin_tablet=&#8221;|8px|||false|false&#8221; custom_margin_phone=&#8221;|0px|||false|false&#8221; custom_margin_last_edited=&#8221;on|phone&#8221; custom_padding=&#8221;29px|34px||0px|false|false&#8221; custom_padding_tablet=&#8221;|0px|||false|false&#8221; custom_padding_phone=&#8221;|0px|||false|false&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]If you\u2019re thinking in terms of PSI or bar \u2013 such as the air pressure needed to inflate a car tyre \u2013 then you\u2019re using a sledgehammer to crack a nut. The air pressures we need to measure are far lower. So we use:<\/p>\n<ul>\n<li>Millimetres of Water Gauge (mmWg)<\/li>\n<li>Inches of Water Gauge (in.w.g.)<\/li>\n<\/ul>\n<p>mmWg and in.w.g both represent the pressure exerted by a column of water of a certain height, measured in millimetres or inches, respectively. These units are used to measure low air pressures where the pressure differences are relatively small. mmWg and in.w.g. are used a lot in fan engineering because they provide a convenient and practical way to measure low air pressures with precision and accuracy. These units are easy to understand. They are used in manometers and gauges designed specifically to measure low pressures.[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;2_5&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.aircontrolindustries.com\/wp-content\/uploads\/2023\/05\/Electrical-Test-1.jpg&#8221; alt=&#8221;Electrical test of an industrial fan&#8221; title_text=&#8221;Electrical Test&#8221; align=&#8221;center&#8221; align_tablet=&#8221;center&#8221; align_phone=&#8221;center&#8221; align_last_edited=&#8221;on|desktop&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;4px|0px|||false|false&#8221; custom_margin_tablet=&#8221;44px||||false|false&#8221; custom_margin_phone=&#8221;0px||||false|false&#8221; custom_margin_last_edited=&#8221;on|phone&#8221; custom_padding=&#8221;|0px|||false|false&#8221; box_shadow_style=&#8221;preset1&#8243; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|tablet&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;25px|19px|25px|20px|false|false&#8221; custom_margin_tablet=&#8221;15px|40px||60px|false|false&#8221; custom_margin_phone=&#8221;15px|40px||60px|false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;0px|0px|0px|32px|false|false&#8221; custom_padding_tablet=&#8221;|||0px|false|false&#8221; custom_padding_phone=&#8221;|||0px|false|false&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;30px&#8221; text_line_height=&#8221;1.1em&#8221; header_text_color=&#8221;#003366&#8243; header_font_size=&#8221;25px&#8221; header_2_font_size=&#8221;25px&#8221; custom_margin=&#8221;0px||0px||false|false&#8221; custom_margin_tablet=&#8221;0px||30px||false|false&#8221; custom_margin_phone=&#8221;0px||0px||false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;20px||0px||false|false&#8221; custom_padding_tablet=&#8221;20px||||false|false&#8221; custom_padding_phone=&#8221;20px||||false|false&#8221; custom_padding_last_edited=&#8221;on|desktop&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2><span style=\"color: #c8963e;\"><strong>How We Test Fans<\/strong><\/span><\/h2>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;3_5,2_5&#8243; custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.19.4&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|tablet&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;5px|19px|40px|20px|false|false&#8221; custom_margin_tablet=&#8221;15px|40px||60px|false|false&#8221; custom_margin_phone=&#8221;15px|40px||60px|false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;0px|0px|0px|32px|false|false&#8221; custom_padding_tablet=&#8221;|||0px|false|false&#8221; custom_padding_phone=&#8221;|||0px|false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;3_5&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; width=&#8221;90.1%&#8221; custom_margin=&#8221;||15px||false|false&#8221; custom_padding=&#8221;13px|35px|||false|false&#8221; custom_padding_tablet=&#8221;|0px|||false|false&#8221; custom_padding_phone=&#8221;|0px|||false|false&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]Fan testing is the responsibility of the engineering\/R&amp;D department but its outcomes affect the work of the whole team \u2013 notably design engineers, technical engineers, planning engineers, technicians, prototype engineers and electrical engineers. Tests are conducted with reference to:<\/p>\n<ul>\n<li>ISO 9001 (quality management)<\/li>\n<li>ISO 14001 (environmental management systems)<\/li>\n<li>ISO\/IEC 80079-34 (application of quality systems for EX product manufacture).<\/li>\n<\/ul>\n<p>Our engineers use two types of test rigs to determine airflow at either the inlet or discharge points:<\/p>\n<ul>\n<li><strong>Inlet Side Test Rig <\/strong>\u2013 the flow rate is measured using pressure readings taken at 1 x duct diameter and 0.5 x duct diameter away from an in-duct orifice plate (D and 0.5D), in accordance with ISO 5801 standard for industrial fans. Different diameter orifice plates are used to cover the flow range of the various fan units. The fan static pressure is measured using an inlet side test chamber.<\/li>\n<li><strong>Discharge Side Test Rigs<\/strong> \u2013 again, the flow rate is measured using an in-duct orifice plate with pressure readings at D and 0.5D, (ISO 5801). And again, different diameter orifice plates are used to cover the flow range of the various fan units. The fan\u2019s static pressure is measured using a duct matched to the size of the fan discharge.<\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;2_5&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.aircontrolindustries.com\/wp-content\/uploads\/2023\/05\/IMG_8010.jpg&#8221; alt=&#8221;ACI engineer testing an industrial fan&#8221; title_text=&#8221;Testing Fan Performance&#8221; align=&#8221;center&#8221; align_tablet=&#8221;center&#8221; align_phone=&#8221;center&#8221; align_last_edited=&#8221;on|desktop&#8221; _builder_version=&#8221;4.21.2&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;70px|0px|||false|false&#8221; custom_margin_tablet=&#8221;44px||||false|false&#8221; custom_margin_phone=&#8221;0px||||false|false&#8221; custom_margin_last_edited=&#8221;on|phone&#8221; custom_padding=&#8221;|0px|||false|false&#8221; box_shadow_style=&#8221;preset1&#8243; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|tablet&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;-32px|0px|40px|20px|false|false&#8221; custom_margin_tablet=&#8221;15px|40px||60px|false|false&#8221; custom_margin_phone=&#8221;15px|40px||60px|false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;0px||0px|32px|false|false&#8221; custom_padding_tablet=&#8221;|||0px|false|false&#8221; custom_padding_phone=&#8221;|||0px|false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|70px|||false|false&#8221; custom_padding_tablet=&#8221;|30px|||false|false&#8221; custom_padding_phone=&#8221;|0px|||false|false&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; global_colors_info=&#8221;{}&#8221;]In each case, the tests involve:<\/p>\n<ul>\n<li><strong>noting<\/strong> the atmospheric and ambient temperatures<\/li>\n<li><strong>taking<\/strong> a series of pressure, temperature and electrical current measurements as the fan pressure is varied between zero \u2013 when the fan delivers its maximum volume \u2013 up to the point where the fan moves no air and produces its maximum pressure<\/li>\n<li><strong>applying<\/strong> the measurements to the BS-approved formula to calculate the performance<\/li>\n<li><strong>plotting<\/strong> the results as the static pressure curve where the X-axis is flow and the Y-axis is pressure.<\/li>\n<\/ul>\n<p>Determining the exact performance of fan designs allows our engineers to recommend the ideal solution for each customer\u2019s specific system requirement as well as helping identify potential areas of improvement to each fan design. By measuring airflow, pressure and power precisely, we can calculate how much money a new air delivery system would save you and how soon you would see a return on your investment. In many cases, it\u2019s an absolute no-brainer in terms of ROI \u2013 your new system could pay for itself in a matter of months.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|tablet&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;25px|19px|25px|20px|false|false&#8221; custom_margin_tablet=&#8221;15px|40px||60px|false|false&#8221; custom_margin_phone=&#8221;15px|40px||60px|false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;0px|0px|0px|32px|false|false&#8221; custom_padding_tablet=&#8221;|||0px|false|false&#8221; custom_padding_phone=&#8221;|||0px|false|false&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;30px&#8221; text_line_height=&#8221;1.1em&#8221; header_text_color=&#8221;#003366&#8243; header_font_size=&#8221;25px&#8221; header_2_font_size=&#8221;25px&#8221; custom_margin=&#8221;0px||0px||false|false&#8221; custom_margin_tablet=&#8221;0px||30px||false|false&#8221; custom_margin_phone=&#8221;0px||0px||false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;20px||0px||false|false&#8221; custom_padding_tablet=&#8221;20px||||false|false&#8221; custom_padding_phone=&#8221;20px||||false|false&#8221; custom_padding_last_edited=&#8221;on|desktop&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2><span style=\"color: #c8963e;\"><strong>Factors That Affect Fan Output And Efficiency<\/strong><\/span><\/h2>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;3_5,2_5&#8243; custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.19.4&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|tablet&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;5px|19px|40px|20px|false|false&#8221; custom_margin_tablet=&#8221;15px|40px||60px|false|false&#8221; custom_margin_phone=&#8221;15px|40px||60px|false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;0px|0px|0px|32px|false|false&#8221; custom_padding_tablet=&#8221;|||0px|false|false&#8221; custom_padding_phone=&#8221;|||0px|false|false&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;3_5&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; width=&#8221;90.1%&#8221; custom_margin=&#8221;||15px||false|false&#8221; custom_padding=&#8221;13px|35px|||false|false&#8221; custom_padding_tablet=&#8221;|0px|||false|false&#8221; custom_padding_phone=&#8221;|0px|||false|false&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]Every customer and application is unique because there are so many different variables that affect fan performance. We take them all into account when designing the best system for your requirements. And it\u2019s not just the fan specifications such as motor speed, impeller design, volute casing dimensions, and the size of the inlet and discharge point. There are also other factors such as:<\/p>\n<ul>\n<li>the resistance to flow of the system, the fan is to operate in<\/li>\n<li>the geographical location of the site \u2013 air temperature, climate, seasonality, humidity.<\/li>\n<li>height above sea level (which affects air density).<\/li>\n<\/ul>\n<p>Our dedicated fan testing facility also allows us to test customer equipment for any potential resistance to flow that may be caused by ducting or other resistances in the system. Our engineers can help you significantly reduce the amount of money you spend on air delivery applications \u2013 especially if you\u2019re currently using supposedly \u2018free\u2019 compressed air. The reality is that compressed air is anything but free \u2013<strong><span style=\"color: #33cccc;\"><a style=\"color: #33cccc;\" href=\"https:\/\/www.aircontrolindustries.com\/us\/uncategorized-us\/blower-systems-vs-compressed-air\/\"> it is very energy-hungry and, therefore, extremely expensive.<\/a><\/span><\/strong>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;2_5&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.aircontrolindustries.com\/wp-content\/uploads\/2023\/05\/Fan-Testing-1.jpg&#8221; alt=&#8221;Fan being tested prior to shipping&#8221; title_text=&#8221;Electrical Fan Testing&#8221; align=&#8221;center&#8221; align_tablet=&#8221;center&#8221; align_phone=&#8221;center&#8221; align_last_edited=&#8221;on|desktop&#8221; _builder_version=&#8221;4.21.2&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;44px|0px|||false|false&#8221; custom_margin_tablet=&#8221;44px||||false|false&#8221; custom_margin_phone=&#8221;0px||||false|false&#8221; custom_margin_last_edited=&#8221;on|phone&#8221; custom_padding=&#8221;|0px|||false|false&#8221; box_shadow_style=&#8221;preset1&#8243; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.19.4&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|tablet&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;25px|19px|41px|20px|false|false&#8221; custom_margin_tablet=&#8221;15px|40px||60px|false|false&#8221; custom_margin_phone=&#8221;15px|40px||60px|false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;0px|0px|0px|32px|false|false&#8221; custom_padding_tablet=&#8221;|||0px|false|false&#8221; custom_padding_phone=&#8221;|||0px|false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;30px&#8221; text_line_height=&#8221;1.1em&#8221; header_text_color=&#8221;#003366&#8243; header_font_size=&#8221;25px&#8221; header_2_font_size=&#8221;25px&#8221; custom_margin=&#8221;0px||63px||false|false&#8221; custom_margin_tablet=&#8221;0px||30px||false|false&#8221; custom_margin_phone=&#8221;0px||30px||false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; custom_padding=&#8221;20px||||false|false&#8221; custom_padding_tablet=&#8221;20px||||false|false&#8221; custom_padding_phone=&#8221;20px||||false|false&#8221; custom_padding_last_edited=&#8221;on|desktop&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2><span style=\"color: #c8963e;\">Get Expert Technical Advice On Fan Performance And Testing<\/span><\/h2>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;-15px||||false|false&#8221; custom_padding=&#8221;0px|300px|0px||false|false&#8221; custom_padding_tablet=&#8221;|0px|||false|false&#8221; custom_padding_phone=&#8221;|0px|||false|false&#8221; custom_padding_last_edited=&#8221;on|tablet&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]Contact ACI\u2019s fan engineers for expert guidance\u00a0on how to solve your fan engineering challenges. With our precision testing, we can help you to specify the best fan for your application. on your investment.[\/et_pb_text][et_pb_button button_url=&#8221;https:\/\/www.aircontrolindustries.com\/us\/contact&#8221; button_text=&#8221;Contact Us&#8221; button_alignment_tablet=&#8221;center&#8221; button_alignment_phone=&#8221;center&#8221; button_alignment_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;36px||6px||false|false&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_2,1_2&#8243; _builder_version=&#8221;4.19.4&#8243; _module_preset=&#8221;default&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|tablet&#8221; custom_margin=&#8221;|auto|40px|auto||&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.19.4&#8243; 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button_text=&#8221;Fan Selector Tool&#8221; button_alignment=&#8221;center&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.19.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;20px&#8221; link_option_url=&#8221;https:\/\/www.youtube.com\/watch?v=bioXbuzq-VA&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p style=\"text-align: center;\"><strong>USING THE FAN SELECTOR TOOL<\/strong><\/p>\n<p>[\/et_pb_text][et_pb_image src=&#8221;https:\/\/www.aircontrolindustries.com\/wp-content\/uploads\/2023\/02\/Fan-Selector-Video-4.jpg&#8221; alt=&#8221;Screenshot of the Fan Selector video&#8221; title_text=&#8221;Fan Selector Video&#8221; url=&#8221;https:\/\/www.youtube.com\/watch?v=bioXbuzq-VA&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.21.2&#8243; _module_preset=&#8221;default&#8221; width=&#8221;40%&#8221; custom_margin=&#8221;||82px||false|false&#8221; box_shadow_style=&#8221;preset2&#8243; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_button button_url=&#8221;https:\/\/www.youtube.com\/watch?v=bioXbuzq-VA&#8221; button_text=&#8221;Watch The Video&#8221; button_alignment=&#8221;center&#8221; _builder_version=&#8221;4.19.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; width_tablet=&#8221;&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|phone&#8221; custom_padding=&#8221;26px||24px|||&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; header_3_font=&#8221;|600|||||||&#8221; header_3_text_align=&#8221;left&#8221; background_color=&#8221;#f3f8fd&#8221; custom_padding=&#8221;12px||8px|30px|false|false&#8221; text_orientation_tablet=&#8221;&#8221; text_orientation_phone=&#8221;center&#8221; text_orientation_last_edited=&#8221;on|phone&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h3 style=\"text-align: center;\">Why ACI?<\/h3>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_2,1_2&#8243; use_custom_gutter=&#8221;on&#8221; make_equal=&#8221;on&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;75%&#8221; width_tablet=&#8221;&#8221; width_phone=&#8221;100%&#8221; width_last_edited=&#8221;on|phone&#8221; module_alignment=&#8221;center&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_blurb image=&#8221;https:\/\/www.aircontrolindustries.com\/wp-content\/uploads\/2021\/07\/Technical-expertise-blue-1.png&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; body_font=&#8221;|300|||||||&#8221; body_font_size=&#8221;14px&#8221; custom_margin=&#8221;|40px||40px|false|true&#8221; custom_padding=&#8221;20px|20px|20px|20px|true|true&#8221; border_radii=&#8221;off|1px|1px|1px|1px&#8221; border_width_all=&#8221;1px&#8221; border_color_all=&#8221;#D6D6D6&#8243; border_width_top=&#8221;1px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p style=\"text-align: center;\">50+ years of technical expertise and experience.<\/p>\n<p style=\"text-align: center;\">[\/et_pb_blurb][et_pb_blurb image=&#8221;https:\/\/www.aircontrolindustries.com\/wp-content\/uploads\/2021\/07\/happy-customers-blue-1.png&#8221; _builder_version=&#8221;4.19.4&#8243; _module_preset=&#8221;default&#8221; body_font=&#8221;|300|||||||&#8221; 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Guaranteed results and savings.<\/p>\n<p style=\"text-align: center;\">[\/et_pb_blurb][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;90%&#8221; custom_margin=&#8221;25px|40px|0px|60px|false|false&#8221; custom_margin_tablet=&#8221;25px|40px|0px|60px|false|false&#8221; custom_margin_phone=&#8221;25px|11px|0px|11px|false|true&#8221; custom_margin_last_edited=&#8221;on|phone&#8221; custom_padding=&#8221;0px||0px|0px|false|false&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.17.3&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; width_tablet=&#8221;90%&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|tablet&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;15px|0px|15px|20px|false|false&#8221; custom_margin_tablet=&#8221;15px|40px||60px|false|false&#8221; 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