UA Steam Systems Chapter 4 Set 1

A smaller pipe taken off from a main or riser to supply other smaller branch lines or heat transfer units.

• Branch Line

• Downfeed Piping

• External Boiler Piping

• Hartford Loop

A U-shaped section of piping used to absorb expansion or contraction.

• Hartford Loop

• Expansion Loop

• Upfeed Piping

• External Boiler Piping

Steam risers that are taken off the higher steam supply main to convey steam to HTU's installed below the main.

• Upfeed Piping

• Near Boiler Piping

• Downfeed Piping

• External Boiler Piping

The steam piping arrangement at the boiler that connects the boiler to its steam supply and condensate return piping.

• Hartford Loop

• Condensate Return Main

• Riser

• Near Boiler Piping

A valve that permits fluid flow in only one direction and closes automatically to prevent backflow.

• Check Valve

• Shutoff Valve

• Expansion Loop

• Strainer

A vertical main or large vertical branch from which smaller branch lines are taken off to provide heat transfer fluid to heat transfer units (HTU's).

• Main

• Riser

• Branch

• Upfeed Piping

A smaller pipe taken off from a main or riser to supply other smaller branch lines or heat transfer units (HTU's).

• Main

• Riser

• Branch

• Downfeed Piping

The large pipe that distributes a heat transfer fluid (HTF) from the heat source to smaller branch pipes.

• Riser

• Upfeed Piping

• Branch

• Main

A device used to regulate fluid flow (liquid or gas) within a system.

• Valve

• Strainer

• Copper Tube

• Eccentric Reducer

A valve designed to be used in its fully open or fully closed position.

• Check Valve

• Shutoff Valve

• Valve

• Eccentric Reducer