The TS1 system Poseidon 12L-16P was developed for the supply of double-acting mechanical seals. It is used to build up the required liquid lubricant film between the seal face pairings and to maintain it during operation. The Poseidon 12L-16P TS system can be used to ensure a low-maintenance supply to a mechanical seal. The Poseidon 12L-16P thermosyphon supply system does not require an additional seal gas connection like conventional TS systems and can therefore be operated at a lower cost. The system was designed for supply tasks in the low-pressure range up to 6 bar with the sealing medium water.