Why need to blow down the gauge glass ?
Gauge glass blow down is made to know the boiler and gauge glass connection is clear or not and to give the exact water level in the boiler.
Boiler gauge glass blow down procedure ?
1) Shut steam and water cocks than open the drain cock.
2) After draining water from the sight glass, there is nothing come out, both steam and water cocks are good in order.
3) Open the steam cock side, blow out the steam.
4) Close the steam cock side, the steam connection is clear.
5) Open the water cock side, blow out the water.
6) Close the water cock side, the water connection is clear.
7) Close the drain cock.
8) Open the water cock, water should then gradually come rise up to the top of the gauge glass.
9) Open the steam cock, the water in the glass should fall to the level of the water in the boiler.
# Working position – all cocks handle are in downward position.
Gauge glass blow down is made to know the boiler and gauge glass connection is clear or not and to give the exact water level in the boiler.
Boiler gauge glass blow down procedure ?
1) Shut steam and water cocks than open the drain cock.
2) After draining water from the sight glass, there is nothing come out, both steam and water cocks are good in order.
3) Open the steam cock side, blow out the steam.
4) Close the steam cock side, the steam connection is clear.
5) Open the water cock side, blow out the water.
6) Close the water cock side, the water connection is clear.
7) Close the drain cock.
8) Open the water cock, water should then gradually come rise up to the top of the gauge glass.
9) Open the steam cock, the water in the glass should fall to the level of the water in the boiler.
# Working position – all cocks handle are in downward position.
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