[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-646572-105":59,"doc-detail-646572-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","engineering-manual-friction-losses-pipe-fittings-equivalent-length-tables","Engineering Manual - Friction Losses - Pipe Fittings Equivalent Length Tables","","Engineering manual section summarizing friction losses and resistance needed for fluid flow calculations in piping systems. Provides equivalent lengths for standard pipe fittings across pipe sizes, plus friction loss values for offset jet pumps in feet per 100 feet with notes on adding losses to vertical lift. Includes a friction-of-water-in-pipes table listing gallons per minute, velocity, velocity head, and head loss per 100 feet, supporting pump and piping design estimation.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/engineering-manual-friction-losses-pipe-fittings-equivalent-length-tables/646572/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/engineering-manual-friction-losses-pipe-fittings-equivalent-length-tables/646572.png","ImageObject",300,407,{"name":92,"@type":93},"xXChrisXx","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-28","2026-10-23",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What are “equivalent lengths” for pipe fittings used for?","Question",{"text":112,"@type":113},"They express the resistance of fittings as an equivalent length of straight pipe, enabling friction-loss calculation using pipe flow tables.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How are friction losses for offset jet pumps applied?",{"text":117,"@type":113},"The provided friction loss values (feet per 100 feet) are used as part of the overall loss calculation, with the note that friction loss must be added to vertical lift.",{"name":119,"@type":110,"acceptedAnswer":120},"What parameters are listed in the friction-of-water-in-pipes table?",{"text":121,"@type":113},"For each pipe size, the table lists gallons per minute, velocity (ft per sec), velocity head (feet), and head loss (ft per 100 feet).","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},646572,1793112444,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},8796112263567,"https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","CONTENTS Page  \nFriction losses through pipe fittings 2  \nPipe friction for offset jet pumps 2  \nFriction losses in pipes 3-10  \nFriction losses in hose 11  \nTheoretical discharge of nozzles 12  \n“Yardstick” water measuring method 13  \nCorrection factors for viscous fluids 14  \nEngineering data and conversion factors 15  \nSize of fuses 16  \nResistance of copper wire 16  \nTypical motor efficiency 16  \nPressure losses in plastic pipe 17  \nUseful pump data 18  \nPneumatic tank selection table 18  \nWater required to feed boilers 18  \nApproximate boiler feed pump pressures 18  \nData required by pump manufacturers 19  \nMaterials of construction 20-25  \nMaterials tabulation summary 26  \nBelt drive selection 26  \nSize table of rubber insulated copper wire 26  \nEstimation of performance for 50 cycles 27  \nEstimation of performance for trimmed impellers 28  \nSuction limits- (TDSL) (NPSH) 29  \nMeter types 30  \nENGINEERING MANUAL  \nWWW. PENTAIR. COM  \nENGINEERING MANUAL  \nFRICTION LOSSES THROUGH PIPE FITTINGS  \nFRICTI0N L0SSES THR0UGH PIPE FITTINGS IN TERMS 0F EQUIVALENT LENGTHS 0F STANDARD PIPE  \n\n|  | | | | | | | | | |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| SIZE OF PIPE\u003Cbr>(SMALL DIA.) | STANDARD\u003Cbr>ELBOW | MEDIUM\u003Cbr>RADIUS\u003Cbr>ELBOW | LONG\u003Cbr>RADIUS\u003Cbr>ELBOW | 45˚ ELBOW | TEE | RETURN\u003Cbr>BEND | GATE\u003Cbr>VALVE\u003Cbr>OPEN | GLOBE\u003Cbr>VALVE\u003Cbr>OPEN | ANGLE\u003Cbr>VALVE\u003Cbr>OPEN |\n| LENGTH OF STRAIGHT PIPE GIVING EQUIVALENT RESISTANCE FLOW |  |  |  |  |  |  |  |  |  |\n| 1/2” | 1 5 | I 4 | 1 1 | 77 | 3 4 | 3 8 | 35 | 16 | 8 4 |\n| 3/4” | 2 2 | I 8 | 1 4 | 1 0 | 4 5 | 5 0 | 47 | 22 | 12 |\n| I” | 2 7 | 2 3 | 1 7 | 1 3 | 5 8 | 6 I | 6 | 27 | 15 |\n| 1-1/4” | 3 7 | 3 0 | 2 4 | 1 6 | 7 8 | 8 5 | 8 | 37 | 18 |\n| 1-1/2” | 4 3 | 3 6 | 2 8 | 2 0 | 9 0 | 10 | 95 | 44 | 22 |\n| 2” | 5 5 | 4 6 | 3 5 | 2 5 | II | 13 | 1 2 | 57 | 28 |\n| 2-1/2” | 6 5 | 5 4 | 4 2 | 3 0 | 14 | 15 | I 4 | 66 | 33 |\n| 3” | 8 I | 6 8 | 5 I | 3 8 | 17 | 18 | I 7 | 85 | 42 |\n| 3-1/2” | 9 5 | 8 0 | 6 0 | 4 4 | 19 | 21 | 2 | 99 | 50 |\n| 4” | II | 9 I | 7 0 | 5 0 | 22 | 24 | 2 3 | 110 | 58 |\n| 4-1/2” | 12 | 10 | 7 9 | 5 6 | 24 | 27 | 2 6 | 130 | 61 |\n| 5” | 14 | 12 | 8 9 | 6 I | 27 | 31 | 2 9 | 140 | 70 |\n| 6” | 16 | 14 | II | 7 7 | 33 | 37 | 3 5 | 160 | 83 |\n| 8” | 21 | 18 | 14 | 10 | 43 | 49 | 4 5 | 220 | 110 |\n| 10” | 26 | 22 | 17 | 13 | 56 | 61 | 5 7 | 290 | 140 |\n| 12” | 32 | 26 | 20 | 15 | 66 | 73 | 6 7 | 340 | 170 |\n| 14” | 36 | 31 | 23 | 17 | 76 | 85 | 8 | 390 | 190 |\n| 16” | 42 | 35 | 27 | 19 | 87 | 100 | 9 | 430 | 220 |\n| 18” | 46 | 40 | 30 | 21 | 100 | 110 | 10 2 | 500 | 250 |\n| 20” | 52 | 43 | 34 | 23 | 110 | 120 | 12 | 560 | 280 |\n| 22” | 58 | 50 | 37 | 25 | 130 | 140 | 13 | 610 | 310 |\n| 24” | 63 | 53 | 40 | 28 | 140 | 150 | 14 | 680 | 340 |\n| 30” | 79 | 68 | 50 | 35 | 165 | 190 | 17 | 860 | 420 |\n| 36” | 94 | 79 | 60 | 43 | 200 | 220 | 20 | 1000 | 500 |\n| 42” | 120 | 95 | 72 | 50 | 240 | 260 | 23 | 1200 | 600 |\n| 48” | 135 | 110 | 82 | 58 | 275 | 300 | 26 | 1400 | 680 |\n\nFrom “Engineering Data on Flow of Fluids In Pipes ” -Crane Co  \nPIPE FRICTION FOR OFFSET JET PUMPS Friction Loss in Feet Per 100 Feet offset  \n\n| Jet size\u003Cbr>H P | SUCTION AND PRESSURE PIPE SIZES (In Inches) |  |  |  |  |  |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n|  | 3⁄4 x 1 | 1 x 1 | 1 x 11⁄4 | 11⁄4 x 11⁄4 | 11⁄4 x 11⁄2 | 11⁄2 x 11⁄2 | 11⁄2 x 2 | 2 x 2 | 2 x 21⁄2 | 21⁄2 x 21⁄2 | 21⁄2 x 3 | 3 x 3 |\n| 1⁄4 | 27 | 18 | 7 | 5 | 3 | 2 | -- | -- | -- | -- | -- | -- |\n| 1⁄3 |  |  | 12 | 8 | 6 | 4 | -- | -- | -- | -- | -- | -- |\n| 1⁄2 |  |  | 18 | 12 | 8 | 6 | 3 | 2 | -- | -- | -- | -- |\n| 3⁄4 |  |  |  | 22 | 16 | 11 | 6 | 4 | -- | -- | -- | -- |\n| 1 |  |  |  |  | 25 | 16 | 9 | 6 | -- | -- | -- | -- |\n| 11⁄2 |  |  |  |  |  |  | 13 | 8 | 5 | 3 | -- | -- |\n| 2 |  | Operations Below Line Not Recommended |  |  |  |  | 20 | 13 | 7 | 5 | -- | -- |\n| 3 |  |  |  |  |  |  |  |  | 13 | 9 | 6 | 4 |\n\nNOTE: Friction loss is to be added to vertical lift","cbCaibwPCfFdMBEp","https://ap.wps.com/l/cbCaibwPCfFdMBEp","pdf",3529457,32,"English","# Friction Losses Through Pipe Fittings\n## Friction losses in pipes\n## Friction losses in hose\n# Theoretical Discharge and Water Measuring Methods\n## Theoretical discharge of nozzles\n## \"Yardstick\" water measuring method\n# Engineering Data and Engineering Tables\n## Engineering data and conversion factors\n## Resistance of copper wire\n## Typical motor efficiency\n# Pump and Pipe Design Data\n## Pipe friction for offset jet pumps\n## Friction of water in pipes\n## Suction limits (TDSL) (NPSH)\n## Useful pump data","[{\"question\":\"What are “equivalent lengths” for pipe fittings used for?\",\"answer\":\"They express the resistance of fittings as an equivalent length of straight pipe, enabling friction-loss calculation using pipe flow tables.\"},{\"question\":\"How are friction losses for offset jet pumps applied?\",\"answer\":\"The provided friction loss values (feet per 100 feet) are used as part of the overall loss calculation, with the note that friction loss must be added to vertical lift.\"},{\"question\":\"What parameters are listed in the friction-of-water-in-pipes table?\",\"answer\":\"For each pipe size, the table lists gallons per minute, velocity (ft per sec), velocity head (feet), and head loss (ft per 100 feet).\"}]","Engineering Manual - Friction Losses - Pipe Fittings Equivalent Length Tables | PDF",1792764023,81]