Plumbing Symbols – Pipe And Fittings

For reference purposes, here are some two dimensional plumbing symbols showing pipe and fittings you may encounter on mechanical drawings. All drawn by me using If there are any other symbols you would like to see just ask on the forum.

More Types Of Plumbing Symbols:

Plumbing Pipe And Fitting Symbols

90 elbow symbol90 deg elbowspacercap symbolCapspacerWye symbolWyespacer45 deg elbow symbol45 deg elbow
Union symbolUnionspacerVent pipe symbolVentspacerP-trap symbolP-trapspacerTee symbolTee
Running trap symbolRunning trapspacerPipe going down symbolPipe going downspacerPipe going up symbolPipe going upspacerPipe guide symbolPipe guide symbol
Pipe tee up symbolPipe tee up symbolspacerPipe cross UP-DOWN symbolPipe cross UP-DOWN symbolspacerWater closet symbolWater closetspacerFloor drain symbolFloor drain
Kitchen sink symbolKitchen sinkspacerLavatory symbolLavatoryspacerLaundry tray symbolLaundry trayspacerBushing symbolBushing symbol
Concentric reducer symbolConcentric reducer symbolspacerEccentric reducer symbolEccentric reducer symbolspacerExpansion joint symbolExpansion joint symbolspacerFlexible connection symbolFlexible connection symbol
Curb stop symbolCurb stop symbolspacerFire hydrant symbolFire hydrant and isolation valve symbolspacerCompressed air line symbolCompressed air line symbolspacerDomestic water line symbols - cold and hot
  • Domestic cold water
  • Domestic hot water
  • Hot water return/recirculating
Gas line symbolGas line symbolspacerSanitary drain above - below ground symbolSanitary drain above ground
Sanitary drain below ground symbol
spacerSanitary sewer symbolSanitary sewer symbol with size and type of pipespacerStorm sewer symbolStorm sewer symbol with size and type of pipe
Water main symbolWater main symbol with size and type of pipespacerTrap primer symbolTrap primer symbolspacerFloor drain round symbolFloor drain roundspacerFloor drain square symbolFloor drain square
Funnel floor drain symbolFunnel floor drainspacerFunnel drain elevation symbolFunnel drain elevationspacerHub drain symbolHub drainspacerRoof drain symbolRoof drain