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How to Manage the Effects of Diurnal Temperature-Cycling on Sealed Containers

May 31, 2019

THE EFFECTS OF DIURNAL TEMPERATURE-CYCLING

Diurnal temperature-cycling is the fluctuation in temperature that occurs throughout a day; or, more specifically, throughout a 24-hour period. As the day wears on, temperatures rise steadily, beginning just after dawn, and then cool, starting in the late afternoon and continuing through the night. Generally speaking, diurnal temperature-cycling causes the air inside of sealed enclosures, such as containers used for shipping and storage, to expand and contract, creating pressure and vacuum respectively. As a result, the expanding air pushes out against an enclosure’s walls (pressure) during the day when the atmospheric temperatures are warmer, and pulls against those walls (vacuum) during the night when temperatures are cooler. In many situations, this is a problem.

PROTECT YOUR PRODUCTS WITH AGM PRESSURE-RELIEF VALVES

With forces continually at play against the walls of a sealed container, the potential exists for the enclosure to expand, commonly damaging seals and latches in the process. As a consequence, a container can be ruined, its contents damaged or lost, or – in some rare cases – the walls can crack, rip, and even buckle or implode. That’s why it’s important to relieve the pressure and vacuum created inside of sealed enclosures. With AGM’s line of pressure-relief valves, sometimes known as breather valves, it’s possible to simply and effectively manage pressure and vacuum buildup inside of sealed enclosures, regardless of enclosure size. AGM pressure-relief valves easily mount into an enclosure wall and automatically open and close as needed to equalize the atmosphere inside with that of the surrounding atmospheric pressure. AGM’s line of pressure-relief valves can provide up to 800 SCFM of air flow, and are factory-set to any cracking pressure between 0.5 and 5.0 psid. These characteristics ensure pressure relief in even the harshest environments.
AGM TA770 Breather Valves
BREATHER VALVE THEORY Learn more about pressure-relief valves, including environmental protection data, mounting, cracking pressures, and more: LEARN MORE CONTACT US To learn more about AGM’s line of pressure-relief valves and moisture-mitigation systems, contact AGM at 520.881.2130, or email us today. CONTACT US
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AGM Container Controls, Inc.
3526 E. Fort Lowell Rd.
Tucson, AZ 85716
520.881.2130
agmwebsales@agmcontainer.com

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