The High-Pressure (HP) steam drain system collects condensate from steam machinery, equipment, and piping that operates at what amount of pounds per square inch (psi)?

• A. 150 and above
• B. 100
• C. 75
• D. 50

Answer: (A)

High-pressure steam drains are designed to collect condensate from equipment and piping that operate at 150 psi and above. At these high pressures, condensate must be removed by drains that are rated to withstand the intense pressure and temperature, preventing backflow, water hammer, and damage to turbines and piping. The 150 psi threshold distinguishes HP from low-pressure drainage, which handles condensate from systems operating below that level. So condensate from HP equipment falls under the 150 psi and above category, while lower-pressure systems use the low-pressure drain setup.