We offer a range of high pressure CO2 cylinder filling pumps with capacities from 300 kg/h to 1200 kg/h.
The P30 is designed to fill cylinders from either bulk liquid CO2 storage vessels or from cylinder supply.
The P50 & P100 pumps are designed to fill cylinders from bulk liquid CO2 storage vessels only. Where a bulk liquid CO2 tank is used as a supply source, refrigeration is required in the tank. The pumps may also be used where a high pressure source of liquid CO2 is required for a particular process.
Pumps are either supplied as a basic pump on a base with motor, pulleys, drive belts and guard or alternatively as a recharging unit with automatic revert system to re-circulate CO2 back to the storage tank during periods of no demand.
For efficient pumping of liquid CO2 stored in a bulk storage vessel, the head of the pump must be maintained at a temperature as near that of the liquid CO2 as possible.
This is achieved by pumping continuously and re-circulating liquid CO2 back to the storage tank during periods of no demand.
The recharging unit has a revert system local to the pump to enable pipe runs to be kept short, thereby reducing heat load to a minimum.
As the pumps have a positive displacement, it is essential that a relief valve is installed on the discharge line to protect against inadvertent closure of valves etc.
The P30 Recharging Unit is supplied as the basic pump plus an auto revert system comprising isolating and filling valves, solenoid operated revert valve, non return valve, relief valves, starter/isolator, control box, pressure indicator, pressure revert valve, all interconnecting pipework and high pressure hoses.
Each unit is supplied suitable for cylinder to cylinder transfer. Modification of the pipework and fitting of head insulation (supplied) will be necessary when taking CO2 from a bulk tank.
The P50 and P100 Recharging Units are supplied as the basic pump plus an auto revert and pressure damping system comprising pneumatically operated auto revert valve, non return valve, pressure switch, pressure indicator, control box, pressure damping buffer vessel with temperature controlled heater, relief valve, blow down valve and all interconnecting pipework on a common baseframe.
The pressure pulse damping system is a feature of the larger recharging units.
It effectively reduces fluctuations in CO2 flow caused by the action of the plunger.