Steam Distribution System Checklist
- Correctly sized for pressure drop.
- Velocity of steam in pipeline is less than 30 meters (100 feet) per second to prevent erosion.
- Correct allowance has been made for pipe expansion at operating temperature.
- Piping is adequately supported, guided and anchored.
- Pipe slopes at a gentle downward angle with the flow of steam.
- Eccentric reducers are used rather than concentric reducers.
- Equipment supply lines are connected to the top of steam mains, not the bottom.
- Isolation valves are installed to isolate equipment which is not in use.
- Steam traps are installed at regular intervals (30 to 50 meters or 100 to 150 feet).
- Steam traps are installed with correctly sized condensate collecting pockets.
- Ends of steam mains have steam trap and air vent installed.
- Steam traps are correctly sized for start-up and operating condensate loads.
- Steam traps are installed upstream of isolation valves which are regularly closed.
- Determine if water hammer is experienced and eliminate it.
- Check for damage caused by water hammer.
- Heat insulation is installed for energy conservation.
- Insulation is installed for personnel protection.
- Insulation is of optimum thickness.
- Insulation is weatherproofed and dry.
- Insulation is in a good state of repair and is not damaged.
- Foot bridges installed over pipe runs to prevent pedestrian damage to insulation.
- No leaks exist, either to atmosphere or past traps into the condensate recovery system.