1. Buffer/barrier fluid IN (G1/2").
2. Buffer/barrier fluid OUT (G1/2").
3. Cooling water IN (G1/2").
4. Cooling water OUT (G1/2").
5. Filling connection with plug (G1/2").
6. Pressure gas connection (G1/2").
7. Connection for level switch or level indicator (G2").
8. Connection for refill unit (G1/8").
9. Universal connection (G1/2" for safety valve, flare, etc.).
10. Bracket for refill unit.
11. Sight-glass.