Plumbing: PVC Fittings

Here I want to list some of the most common types of PVC pipe fittings used in plumbing aquariums.

Coupling – Used to connect to sections of pipe together.

Tee Coupling – Used to connect three sections of pipe together.

90% Elbow – Used to change the direction of the pipe.  Each elbow starts to slow down the speed of the water.

Threaded Female Elbow – Connects a pipe to a male threaded fitting.

Threaded Male Elbow – Connects a pipe to a female threaded fitting.

45% Elbow – Used to change the direction of the pipe.  Two of these together to form a 90% change doesn’t slow the water quite as much as a single 90% elbow.  This has more relevance in free flow drain lines.

Male Adapter – Converts a pipe end to a threaded fitting.

Female Adapter – Converts a pipe end to a fitting that will accept a male threaded fitting.

Street Elbow – An elbow that has one end that will fit into another fitting without having to cut a small section of pipe to connect them.

Reducer or Bushing – a fitting that will change the pipe size to either smaller or larger.

Cap & Plug – seals off the end of a pipe.

Union – Allows a section of pipe to be removed.

Ball & Gate Valves – Allow flow control of water

Barb Fitting – Used to connect tubing to PVC Pipe