-
PRINCIPLE OF GRAVITY DISC
A PURIFIER MAKES USE OF THE SPECIFIC GRAVITY DIFFERENCE BETWEEN MIXED LIQUIDS. BUT IT IS IMPOSSIBLE TO CHANGE THE POSITION OF INTERFACE OF LIGHT AND HEAVY LIQUID DUE TO ITS […]
-
BOILER WATER SWELLING AND SHRINKAGE
BOILER WATER LEVEL IS VERY IMPORTANT TO BE CAREFULLY MONITORED AND SHOULD BE MAINTAINED FOR SAFE AND EFFICIENT WORKING OF THE BOILER. BUT TWO PHENOMENON SHOWS INCORRECT READING OF BOILER […]
-
REMOTE WATER LEVEL INDICATORS
REMOTE WATER LEVEL INDICATORS ARE USED TO SHOW THE LEVEL OF WATER INSIDE THE BOILER IN A CONVENIENT PLACE LIKE ECR THERE ARE 2 TYPES OF REMOTE WATER LEVEL INDICATORS […]
-
REFRIGERANT CHARGING
THE REFRIGERANT CHARGING IS DONE WHEN REFRIGERATION EFFECT OF REFER/ AC SYSTEM DECREASES DUE TO LEAKAGE OF GAS. BUT BEFORE REFRIGERANT IS CHARGED THE LEAK MUST BE DETECTED AND RECTIFIED. […]
-
PRESSURE VACUUM VALVE
PRESSURE- VACUUM VALVE OR PV VALVE ARE A SAFETY EQUIPMENT USED IN TANKER SHIP TO PROTECT THE CARGO HOLDS FROM OVERPRESSURE OR VACUUM CONDITION. BUT BEFORE WE CONTINUE WE SHOULD […]
-
WELDING DEFECTS
OVERLAP :- IT IS CAUSED BY OVERFLOW OF WELD METAL WITHOUT FUSION OVER THE PARENT METAL. UNDERCUT:- GROOVE/CHANEL ALONG THE TOE OF WELD CAUSED BY WASTAGE OF PARENT METAL DUE […]
-
AFT SEAL LEAK TEST
AFT SEAL LEAK TEST IS DONE DURING DRY DOCK. FOLLOWING PROCEDURE IS CARRIED OUT TO CHECK WHETHER THE SEAL IS LEAKING OR NOT:- DRAIN ALL THE OIL OF THE SYSTEM. […]
-
Air Reservoir Survey
Air bottle being a pressure vessel is one of the most crucial item for survey. But before the survey is carried out following procedure is carried out:- First the work […]
-
FWG cont’d.
PRESSURE TESTING OF SEPARATOR If leaks occur it will in most cases be neceassary to carry out a pressure test in order to find out the leak. The pressure is […]
