System and method of manufacturing a field joint coating

A system for manufacturing a Field Joint Coating, the system comprising:

• a heating device for heating a quantity of a polymer,
• an upstream pump for pumping the quantity of heated polymer into a storage compartment of an ejection device,
• the ejection device which is constructed for each time ejecting the quantity of heated polymer from its storage compartment, the ejection device comprising:
• a barrel which defines the storage compartment, the barrel being reinforced and configured for repeated use,
• a plunger,
• an actuator for driving the plunger through the barrel from a start position to an end position for emptying the storage compartment, and
• a discharge opening
• a downstream pump positioned downstream from the ejection device,
• the downstream pump being constructed for increasing the operating pressure of the ejected polymer for injection of the polymer into the mould, and
• the mould which is configured to be positioned at a field joint around a pipeline or a pipe section.

A method for manufacturing a Field Joint Coating, the method comprising:

• heating a quantity of polymer,
• pumping the heated polymer into a storage compartment of an ejection device with at least one upstream pump, the ejection device being constructed for each time ejecting the quantity of heated polymer from its storage compartment, the ejection device comprising:
• a barrel which defines the storage compartment, the barrel being reinforced and configured for repeated use,
• a plunger,
• an actuator for driving the plunger through the barrel from a start position to an end position for emptying the storage compartment, and
• a discharge opening,
• ejecting the heated polymer from the storage compartment by the ejection device in a relatively short period of time,
• increasing the operating pressure of the ejected polymer with a downstream pump which is positioned downstream from the ejection device,
• injecting the polymer into a mould which is positioned at a field joint around a pipeline or a pipe section, and
• letting the polymer set for forming the field joint coating.