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How do you blow through a boiler gauge glass?

How do you blow through a boiler gauge glass?

How do you blow through a boiler gauge glass?
GAUGE GLASS IS CONNECTED EITHER DIRECTLY TO THE BOILER OR MOUNTED IN A HOLLOW COLUMN
GAUGE GLASS DIRECTLY CONNECTED TO THE BOILER SHELL
GAUGE GLASS MOUNTED IN A HOLLOW COLUMN

EACH HAVE A PROCEDURE OF BLOWING THROUGH TO ENSURE THAT GAUGE GLASS IS SHOWING THE CORRECT BOILER WATER LEVEL AND ANY PASSAGES OR COCKS WERE NOT BLOCKED



GAUGE GLASS MOUNTED DIRECTLY TO THE BOILER

DURING NORMAL OPERATION
§  STEAM COCK OPEN
§  WATER COCK OPEN
§  DRAIN COCK SHUT






TEST STEAM COCK
§  STEAM COCK OPEN
§  WATER COCK SHUT
§  DRAIN COCK OPEN
'IF NO STEAM EXITS DRAIN THEN STEAM COCK OR UPPER PASSAGE BLOCKED'







TEST WATER COCK
§  STEAM COCK SHUT
§  WATER COCK OPEN
§  DRAIN OPEN
'IF NO WATER EXITS DRAIN THEN WATER COCK OR LOWER PASSAGE BLOCKED'








TEST DRAIN COCK
§  STEAM COCK OPEN
§  WATER COCK OPEN
§  DRAIN COCK OPEN
IF NO STEAM OR WATER EXITS DRAIN THEN THE DRAIN COCK MAYBE BLOCKED







GAUGE GLASS MOUNTED IN A HOLLOW COLUMN

DURING NORMAL OPERATION
§  STEAM COCK A & B OPEN
§  WATER COCK C & D OPEN
§  DRAIN SHUT





TESTING STEAM COCKS
§  STEAM COCK A & B OPEN
§  WATER COCK C & D SHUT
§  DRAIN COCK OPEN
'IF NO STEAM EXITS DRAIN THEN STEAM COCKS A & B OR UPPER PASSAGE BLOCKED'






TESTING WATER COCKS
§  STEAM COCK A & B SHUT
§  WATER COCK C & D OPEN
§  DRAIN OPEN
'IF NO WATER EXITS DRAIN THEN WATER COCKS A & B OR LOWER PASSAGE BLOCKED'







CROSS TEST 1
§  STEAM COCK A OPEN & B SHUT
§  WATER COCK D OPEN & C SHUT
§  DRAIN COCK OPEN
'IF NO STEAM EXITS DRAIN THEN COCKS A & D OR CROSS PASSAGE PASSAGE BLOCKED'







CROSS TEST 2
§  STEAM COCK B OPEN & A SHUT
§  WATER COCK C OPEN & D SHUT
§  DRAIN COCK OPEN
'IF NO WATER EXITS DRAIN THEN COCKS  B & C OR CROSS PASSAGE PASSAGE BLOCKED'







TESTING DRAIN COCK DRAIN
§  STEAM COCK A OPEN & B OPEN
§  WATER COCK D OPEN & D OPEN
§  DRAIN COCK OPEN

'IF NO STEAM OR WATER EXITS DRAIN THEN THE DRAIN COCK MAYBE BLOCKED'
..............
MK
.::"A COMMON MAN WITH A COMMON THOUGHT'S !"::.
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