Martin XHV Air Cannon Operator's Manual page 10

Martin Engineering M3404-05/12
When blasting into closed storage vessel, exhaust vents must
be considered to prevent internal vessel air pressure from
increasing to point where it may damage vessel.
7. When blasting into closed storage vessel, consider exhaust vents to
prevent internal vessel air pressure from increasing to point where it may
damage vessel. Calculate temporary vessel pressure after air cannon
discharge with the following equation:
pressure in air cannon
= ------------------------------------------------------------------------------------------------------------------------ -
P
air cannon volume
If calculated pressure is greater than 0.5 psi (.034 bar), install exhaust
vents to avoid damage to storage vessel. Observe local and state codes,
which may specify limits less than 0.5 psi (.034 bar).
Air cannon force output can vary depending on inlet pressure,
discharge opening size, structure size, material in structure,
and other factors. To determine maximum force output values
for your application, call Martin Engineering.
8. If you need to know air cannon maximum force output for your
application, call Martin Engineering.
6
CAUTION
!
×
air cannon volume
+ unoccupied volume of vessel
IMPORTANT
®
Martin XHV Air Cannons