are a set of safety devices fitted on boiler for its protection and for complete control of the steam generation cycle.
To control the flow of steam from the boiler to the main steam pipe. b) To shut off the steam completely when required
1. Main Steam Stop Valve
To blow off the steam for preventing explosions when the pressure of the steam inside of the boiler exceeds the working pressure.
2. Safety valve
This Boiler mountings fitted to indicate the water level inside the boiler.
3. Water level gauge glass
To prevent boiler imploding when depressurized or when steam pressure is initially increased.
Air Vent Cock
To regulate the supply of water, which is pumped into the boiler by the feed pump.
Feed check valve
It is fixed in front of the boiler.
To measure the pressure of the steam inside of the steam boiler.
6. Pressure gauge
To empty the boiler whenever required & To remove the mud, scale or sediments accumulated at the bottom of the boiler.
7. Blow-down valve
To put off the fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit and thus avoids the explosion.
8. Scum blow down valve
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