Manualshelf

User's Manual

ManualsBrandsKidde Fire Systems ManualsSurge ProtectorKidde Fire Systems Kidde Fire Systems Surge Protector P/N 81-CO2MAN-001
31323334353637383940
Component Descriptions
P/N 81-CO2MAN-001 2-5 September 2013
Figure 2-4. 5/8-inch Type “I” Cylinder Valve
2-2.1.2 CYLINDER FILLING
The relationship of cylinder pressure as a function of temperature and fill density is shown in
Figure 2-5. In high pressure CO
2
systems the cylinder pressure is directly related to the
ambient temperature at the storage location. The pressure is also affected by the fill density
or percent fill. This is the ratio (expressed in percent), of the weight of carbon dioxide to the
water capacity of the cylinder, expressed in pounds as shown in Table 2-2. The fill density
commonly used is between 60 and 68 percent. The US Department of Transportation (DOT)
and Transport Canada (TC) limits the maximum fill density to 68% for carbon dioxide.
Care must be taken not to over fill the cylinders above their rated capacity. Over filling is an
unsafe practice, is in violation of DOT/TC regulations, and will create rapid increases in
pressure for small increases in temperature. Over filling will cause premature actuation of the
pressure relief device and result in the loss of the cylinder contents.