No.4 Business Building-2707, China Central Place
Chaoyang District, Beijing-100021, China
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北 京 大 林 绿 源 环 保 科 技 有 限 公 司
BEIJING DAELIM GREEN EP TECH CO., LTD.
5.7 Fault Pressure Relief Device (FPRD)
Also commonly referred to as an Explosion Relief Device (Fig.9), this device facilitates the rapid release of gas
pressure in theevent ofan internalfault.Thisdevice should not beconfused with a standard Automatic
PressureReliefValveasshown in (Fig.3),whichonlyreleasespressureslowlytoaccountforthermal
expansionandcontraction.APRDiscovermountedandequippedwithaspringloadeddiaphragmthatis
factorysettoopenat apredeterminedpressurelevel(Typically10psi).Afterthetankpressurereturnsto
normal the Diaphragm will close and reseal the unit. The FPRD is equipped with an indicator (yellow button on
top) that will protrude vertically after an event until it is reset.
The FPRD can also be supplied with SPDT alarm contacts for remote monitoring.
For wiring and other information, please refer to the schematics included in the submittal drawings.
Fig. 9
