System comprising a cryogenic container and a single-piece economizer

A system comprising:

• a cryogenic container that is an LNG container or a hydrogen container, the cryogenic container including a first removal line for removing cryogenic fluid in a gas phase and a second removal line for removing cryogenic fluid in a liquid phase, wherein the first removal line and the second removal line are routed into the cryogenic container;
• the system further comprising:
• a single-piece economizer valve block having at least a first inlet port, a second inlet port and an outlet port, the first inlet port, the second inlet port, and the outlet port being connected inside the single-piece economizer valve block by a connection passage having a connecting portion on the gas phase side, a connecting portion on the liquid phase side and a connecting portion on an end side, which converge at a node,
• wherein:
• the first removal line is connected to the first inlet port and the second removal line is connected to the second inlet port, and
• the single-piece economizer valve block includes at least one valve recess open towards an outside, the at least one valve recess starting at the connecting portion on the gas phase side, at the connecting portion on the liquid phase side or at the node on the connection passage, and
• a valve being inserted into the valve recess of the single-piece economizer valve block.