Cold Jet PR350H Pre-Installation page 12

Pre-Installation Guidelines & Checklist
Liquid CO Supply System
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Cold Jet recommends the supply line for the liquid CO
to be direct (with limited bends) and well insulated. This will help prevent the formation of
gas and maintain the temperature of the liquid CO
pelletizer.
It is the responsibility of the installer of the liquid CO
supply line route and the insulation needed. Use the data guidelines below to design and
install the liquid CO
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Liquid CO Supply System
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Supply Pressure (Min-Max)
Supply Pressure Range
Supply Pressure (Recommended PBU Setting)
Flow Rate - Minimum
Max volume withdrawal (PBU-Dimensioning)
Pelletizer Design Pressure / PRV setting
Liquid CO Line Size Recommended ID
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Liquid CO Connection at Pelletizer
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Liquid CO Line Insulation
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NOTE: If the liquid CO
machinery, or is longer than 30 m (100 ft) the owner should consult with the CO
contractor for an optimal design for a stable and gas-free liquid CO
NOTE: For CO tank installation and the liquid CO
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settings are 16-17 bar (230-250 psi) for optimized output performance and quality. The liquid
CO quality in use must meet general purity requirement of commercial industrial/food grade
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specifications and must be free of oil and have a purity of minimum 99.9%. For optimum
performance and high density pellets quality the water (H
ppmv and not be less than 5 ppmv - or equivalent to a dew point temperature of -66°C to
-51°C (-86.8°F to -59.8°F). If only very dry CO
special extrusion process design and settings.
Liquid CO Degasser System
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In order to achieve a consistent, high-quality supply of liquid CO
the low-capacity pelletizer PR120H), Cold Jet recommends the installation of an automatic
gas venting system, such as the Armstrong Kit (refer to "Figure 3: Degasser (Armstrong) Kit.
Installing an automatic gas venting system will improve the performance of the pelletizer and
increase dry ice production.
The installation of the Armstrong Kit, or similar system, is optional and is the responsibility of
the installer of the liquid CO2 supply system and piping up to the pelletizer connection.
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supply system:
16-22 bar (232-319 psi) - Optimum performance range 16-17 bar (230-250 psi)
900 kg/hr (1984 lb/hr)
264 kg/hr (582 lb/hr)
20 mm (0.75 in)
Min. 75mm (3.0 in) Industrial Insulation - (Urethane Foam - PVC/Alu jacket)
supply line is serving more than one pelletizer, other CO
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from the storage tank to the pelletizer
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thus improving the performance of the
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supply system to determine the best
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PR120H PR350H
+/- 1.0 bar (14.5 psi)
16.5 bar (240 psi)
2200 kg/hr (4850 lb/hr)
770 kg/hr (1698 lb/hr)
27.6 bar (400 psi)
25 mm (1.0 in)
EU: 3/4-inch BSP / US: 3/4-inch NPT
supplier the recommended supply pressure
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O) content should not exceed 35
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is present please contact Cold Jet for optimal
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PR750H
2200 kg/hr (4850 lb/hr)
1650 kg/hr (3638 lb/hr)
25 mm (1.0 in)
consuming
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piping
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supply to the pelletizer.
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to the pelletizer (especially
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