
ASCO CARBON DIOXIDE LTD
Offi cial sales partner USA
Industriestr. 2, CH-8590 Romanshorn
GRAND NORTHERN PRODUCTS
Tel. +41 71 466 80 80 Fax + 41 71 466 80 66
Tel. + 001 616 583 50 00 Fax + 001 616 583 90 61
/www.ascoco2.com
[email protected]/www.grandnorthern.com
ASCO
CARBON DIOXIDE LTD
XI
OVERPRESSURE IN PIPES
If two shut off valves are connected on a CO
2
liquid pipe, a safety valve must always be ins-
talled between the valves. If liquid CO
2
is trapped in the pipe between two shut-off valves, then
the pressure in the pipe, triggered by the rapid expansion of CO
2
due to heating, can increase
very quickly.
WARNING
For this reason there is a danger of damage to persons or material damage as
the pipe or the hose could burst in the worst case scenario.
•
Therefore it is extremely important that a safety valve is fi tted anywhere where
liquid CO
2
can be trapped.
•
In addition it is recommended to fi t a discharge cock/ball valve so that CO
2
can be
released when required.
GENERAL SAFETY NOTES