0 31 0 obj <>/Filter/FlateDecode/ID[<8670F8E52563BE759ECEBAE908637F1B><91AE15EAFF8C7A4B8769498CC8EC42A8>]/Index[14 28]/Info 13 0 R/Length 86/Prev 64629/Root 15 0 R/Size 42/Type/XRef/W[1 2 1]>>stream Ductulator calculats duct dimensions using equal friction method or velocity method. By multiplying air velocity by the cross section area of a duct, you can determine the air volume flowing past a point in the duct per unit of time. �h�p�L��A�r���u����rs2�������,�6*��^՛����>8��c�i����׻XM3s������Ƴ������y��dfm�7�Z�����_�#����^-�h�ߡ��2�q\���� �m��op�/��������)CJO�g7c���84l�rkb��ݐ\��{�����h�lt��hb]����y{Fˬf� ��� Based on Duct Diameter: Enter Round Duct Diameter (inches), Duct Airflow (CFM), Duct Length and the number of bends. 41 0 obj <>stream �]`ʀ�@\�S`� ���:@�Pp0#��Dq��d��m�[���{�u�ؔiV���k���@�e�0DIY(�������"��IA&�^��p��'���e ���2k�j�7�N�r�&�X� m�ښ�[Ƿ��-y2�C�!L���c�W"Yͺ����1�Fqm�ۦ U{p)\/�f��j>6���i0G\�� ���O/�J�Gˍ�Z��*��*�;J{��MSN��o,?!+L�>-#�h�����¥��S�η�`^�qz��ANsx�C�����jM�2��4�h? $@D �`�bmIx�X� �� �.W �Z b5 ��G��y#�\ �����?� �� $ H��UKo�@�#�?�8�J��ή�q�� ��"Υꅂ����F��݇���� ���HW��g}����D�C���g� ��d�U���ݣ :L����*�J�E��['U��dE3�G�db�!�ȍ�!�b�ˁ9��σLPKr0`�$�?A-y�Q�um(E�O���m� endstream endobj startxref H���1��0E{N�2)�Z�-�=|�L�=�ߝ�!0ƏZ���{x���&k-�n[M�b]0I$л`N X����i+� ��W��%�����gR4��(G���SE��xo)��@QRt�f���ʷ���� �S�ᇝMph� �S�� Uv���vK]o�_��醦^���a*�w����ɝ����T�ˣ4(��t��a A* ��_ �}�-� G��� ��84�7M���"o0� �M���I�i�:j`�"����s����`�[T˭�/�ҿ9��Y���9�6�)�J�JJ+RW Air velocity (distance traveled per unit of time) is usually expressed in Linear Feet per Minute (LFM). pls make a video of ductulator also on youtube. ��˜�L��#DYD����1���,��J������==�%8r�פ^��|N7�p�~(>�q�����9���v��O����IO�Dn/Ԏ�r��΀���KthEW��ve�n�r/�F|Bv� �����iN�n�@�v�Y�q��]v �Zk.$���hkW�}u���|Xu���/ F��f�o�@��7. Spam Comments Will Be Deleted. Do Not Promote Your Business or Your Website Here. endstream endobj 19 0 obj <>stream It is available in SI and British IP units. h޴�ko�0�����iK}R�DBI��۔D۴(��$H"p����6���ӪN�el�y��?0 Volume flow is usually measured in Cubic Feet per Minute (CFM). CFM 4" CFM 6" CFM 8" CFM 10" CFM 12" 60 6x4 60 4x6 90 4x8 120 4x10 150 4x12 90 8x4 110 6x6 160 6x8 215 6x10 270 6x12 120 10x4 160 8x6 230 8x8 310 8x10 400 8x12 150 12x4 215 10x6 310 10x8 430 10x10 550 10x12 180 14x4 270 12x6 400 12x8 550 12x10 680 12x12 210 16x4 320 14x6 490 14x8 670 14x10 800 14x12 240 18x4 375 16x6 580 16x8 800 16x10 950 16x12 270 20x4 430 18x6 670 18x8 … endstream endobj 18 0 obj <>stream ?f�zYƀC���̽ݏP���d�ހ��ҙGg�F9�l����q(���S�i7��� N8�������T�EL�1`$�*���{G^ ��Q�Ny��2ږ��:!cXWj:�[,u�$��F��*���b���}�n`���a���x������~���l��Y�>���y��w�Vk,ڲ��⚡e�}{zW���F���M�O��py3�e]�J��(��Y���7�.�����Y ���t5ZcJ�(N�ȣ�?yk���8����K��&/�\���Q�����:w�#S���)�}^�[l�,DU�`��C�@�֧¿�O��a|�M��1��n�����Fc���Ɨ�pz};��Ay�DN�Ħ�H�QĊp�0�ܢ�����0ӣ�@�'٧�@W� V��B�����Bb��F��;\��X�|W. Duct type: Metal Ductboard Flex Size by: Friction rate Velocity Friction Rate: per 100 ft. in/wg Duct TEL : ft. * include fittings in the Duct TEL Enter either: CFM: or Duct Size: CFM: endstream endobj 15 0 obj <> endobj 16 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC/ImageI]/XObject<>>>/Rotate 0/Type/Page>> endobj 17 0 obj <>stream It is designed for calculating and sizing duct dimensions according to air volume CFM, roughness, velocity, etc. Duct Sizer (Ductulator) for HVAC air ducts. Enter Duct Airflow (CFM), Duct Velocity (FPM), Duct Length and the number of bends. ���"��@�L�g���^4���d8��+�X�#�W4S�������[I p����Q 2. Duct sizing needs a ductulator or software but this excel calculator performs the same calculations. endstream endobj 20 0 obj <>stream endstream endobj 21 0 obj <>stream For the more duct formulas download this, HVAC Duct Size Calculator Excel - Free Ductulator. - Insert duct dimensions ( Width and height), This hvac duct sizing calculator is very simple and it calculates the duct friction loss value and air velocity inside the duct. H���Kn!D�s Sheet Metal Duct Friction Loss Calculator 1. Ductulator Velocity = (576 * Air Flow in CFM) / (3.14 * Diameter 2) When diameter is given Ductulator Velocity = (576 * a) / (Side1 * Side2 * 4) When sides are given Ductulator Velocity = Air Flow in CFM / Cross Sectional Area When Area is given To use the calculator, enter your air velocity or volume air flow and duct area/type, select your units, click calculate air flow and your converted velocity and volume units will be shown. Get all latest content delivered straight to your inbox. And it shows the velocity and/or static pressure loss of air for both types of duct shape. Read Friction Loss (inches of water) and Duct Velocity (FPM). H����N�0��y Enter air flow and its velocity in air duct sizing calculator to find the diameter of duct size. Download AutoCAD Fonts Library - Free SHX Fonts, Download McQuay Duct Sizer for HVAC Duct Sizing, Download Free Arabic and Kufi SHX AutoCAD Fonts, Download Free AutoCAD Blocks for HVAC Design, Download ASHRAE Heat Load Calculation Excel Sheet XLS, Carrier HAP 5.1 - Hourly Analysis Program. It calculates both rectangular and round duct dimensions. %PDF-1.6 %���� �3������1���t�u�Z���]D�y-����h9�Z��B˧�DWG5](�d�����`M�a&��^'�^�dF���bW����qy\���T��w��[�l���Ƿ���^��٧�m�!�2��k%�l�\F%���h�3+��UvPe�~��ĵ嚏g$C��N�����:�ߓ���d/���gk��)�F� 14 0 obj <> endobj Duct sizing needs a ductulator or software but this. Online Ductulator Free Duct Size Calculator. It is available in SI and British IP units. %%EOF h�bbd``b`� *U!_ �+� ��� CUI Devices' air flow conversion calculator can be used to convert between common units for volume air flow and air velocity flowing past a point in a specified area of duct. Duct cross-sectional area, air flow rate and air speed are used in calculating the duct size. h�b``�g``�d �g�P#�0p4 ��C1���csa��4�W���(���╠(�0���up#^.��L��010�)�Z� Ĭ��!|F>� �/ Equivalent diameter is the diameter of a circular duct with similar pressure loss as an equivalent rectangular duct. 쩝�l$I޳Ր$K��[��l�Rf8S��v���'� d+��