Steam and Condensate Piping Systems TEAM UP FOR ENERGY SAVINGS ›

Steam and Condensate Piping Systems TEAM UP FOR ENERGY SAVINGS ›
TEAM UP FOR ENERGY SAVINGS
Steam and Condensate Piping Systems
Saving the environment and saving money can be as easy
as fixing a leaky steam pipe fitting. That means you’re on
the front line for energy-saving opportunities. Team up
with co-workers to spot ways to reduce the energy your
steam and condensate systems use – it’s good for the
environment and good for your bottom line.
Full steam ahead for energy savings
› Re-pipe systems or move equipment to shorten pipe
lengths to minimize heat loss and steam leaks.
› Repair, replace or add air vents.
› Optimize the location of condensate conductivity
sensors.
3. Retrofits
Check out your steam and condensate piping systems.
Valuable energy is lost through steam leaks, faulty steam
traps and poorly insulated pipes. To conserve energy and
cut costs, consider three main areas:
› Upgrade insulation.
› Eliminate or minimize steam use where possible.
› Replace old steam traps or ones that are the wrong size
1. Housekeeping
› Optimize pipe sizes. Oversized pipes lead to higher
› Set up a steam trap maintenance program,
including procedures.
› Regularly inspect and maintain steam traps.
› Fix steam and condensate leaks.
› Ensure good steam quality by maintaining chemical
water treatment.
› Repair damaged pipe insulation.
› Shut down equipment when not needed.
› Shut down steam and condensate branch systems
when not needed.
2. Low-cost opportunities
› Overhaul pressure-reducing stations. Reduce steam
pressure where possible.
› Insulate pipes, flanges, fittings and equipment. A threemetre length of uninsulated 10-centimetre steam pipe,
for example, will cost more than twice as much in
steam per year than it would to insulate.
› Remove redundant steam and condensate piping.
or type.
surface heat loss, while undersized pipes need higher
pressure and extra pumping energy and cause
more leaks.
› Depressurize condensate.
› Recover heat from condensate.
› Install a closed-loop pressurized condensate return.
› Measure steam and condensate flows with a meter.
Evaluate your steam and condensate
systems
1. Is there any unused or redundant piping?
❏ Yes
Recycled paper © Her Majesty the Queen in Right of Canada, 2009
Cat. No. M4-76/1-2009E (Print)
ISBN 978-1-100-11652-5
Cat. No. M4-76/1-2009E-PDF (On-line)
ISBN 978-1-100-11653-2
❏ No
Isolate the piping from the rest of the system,
then remove it.
No action required.
6. Is the insulation (including the vapour barriers and
weatherproof jackets) intact?
❏ Yes
Check monthly.
❏ No
Replace damaged material.
Done by: ______________________________________
Date: _________________________________________
Done by: ______________________________________
7. Are the measured steam and condensate flows equal?
Date: _________________________________________
❏ Yes
No action is required.
2. Does the steam and condensate system use the
best piping size? Is steam generated close to where
it is used?
❏ No
Inspect the condensate piping for leaks.
❏ Yes
No action required.
❏ No
Have a qualified contractor redesign the system
to optimize it. Move steam-generating or steamusing equipment closer to each other. If that is
not possible, consider non-steam equipment.
Done by: ______________________________________
Done by: ______________________________________
Date: _________________________________________
8. Is the insulation thick enough? (Insulation should be
cool enough to touch.)
❏ Yes
No action required.
❏ No
Add more insulation or evaluate the economics
of replacing the insulation with another type.
Date: _________________________________________
Done by: ______________________________________
3. Can you see or hear any steam leaks?
Date: _________________________________________
❏ Yes
Repair leaks as soon as possible.
❏ No
Recheck monthly, using ultrasonic detectors,
listening rods, pyrometers or stethoscopes.
Have a qualified contractor or representative from
the manufacturer of your steam traps and valves
check for leaks.
Done by: ______________________________________
Date: _________________________________________
4. Are steam pipes insulated?
❏ Yes
Regularly inspect and replace damaged
insulation. Add more insulation if it is not
cool enough to touch.
❏ No
Insulate pipes as soon as possible.
Done by: ______________________________________
Date: _________________________________________
5. Is the insulation dry?
❏ Yes
Check monthly.
❏ No
Find the moisture source and fix it. For example,
if the pipe is leaking, repair it.
Done by: ______________________________________
Date: _________________________________________
Aussi disponible en français sous le titre : ENSEMBLE, ÉCONOMISONS
L’ÉNERGIE! Les réseaux de tuyauterie de vapeur et de condensat
For more information: oee.nrcan.gc.ca/industrial
Natural Resources Canada’s Office of Energy Efficiency
Leading Canadians to Energy Efficiency at Home, at Work and on the Road
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