1. Two (2) or I pair of Boiler Safety Valves
Purpose: First warning of high Steam Pressure
Final warning of excessive pressure
To protect the boiler from over pressure failure
2. Main Stream Stop Valve
Purpose: To isolate boiler from plant equipments.
3. Two (2) or One Pair of Water Level Gauge Glass
Purpose: To normally check water level
To double check the water level
Water sampling point (for middle level water sampling where applicable)
