AN EXTERNAL FLOATING ROOF TANK IS A STORAGE TANK COMMONLY USED TO STORE LARGE QUANTITIES OF PETROLEUM PRODUCTS SUCH AS CRUDE OIL OR CONDENSATE. IT CONSISTS OF AN OPEN- TOPPED CYLINDRICAL STEEL SHELL EQUIPPED WITH A ROOF THAT FLOATS ON THE SURFACE OF THE STORED LIQUID. THE ROOF RISES AND FALLS WITH THE LIQUID LEVEL IN THE TANK. AS OPPOSED TO A FIXED ROOF TANK THERE IS NO VAPOR SPACE IN THE FLOATING ROOF TANK.
FLOATING ROOF OIL TANKS HAVE A CYLINDRICAL STEEL SHELL. AS THE NAME OF THE TANK SUGGESTS, THIS CYLINDRICAL STEEL SHELL HAS A FLOATING ROOF, MEANING THAT IT FLOATS ON TOP OF THE LIQUID THAT IS IN THE TANK. THIS IS A VERY INTERESTING CONCEPT. WHEN THE CRUDE OIL LEVELS ARE LOW, THEN THE POSITION OF THE ROOF WILL BE LOW AS WELL.
WHEN THERE IS MORE CRUDE OIL BEING STORED IN THE TANK, THEN THE LEVEL OF THE ROOF RISES TO MATCH THE LEVEL OF THE OIL.
GENERALLY, STORAGE TANKS CAN BE CLASSIFIED AS PRESSURISED STORAGE TANKS AND ATMOSPHERIC STORAGE TANKS. PRESSURISED STORAGE TANKS ARE USUALLY USED FOR STORING LIQUIDS THAT EVAPORATE. FOR THIS REASON, ATMOSPHERIC STORAGE TANKS ARE THE ONES THAT ARE BEST SUITED FOR STORING CRUDE OIL
KEY PROJECT EXECUTED:
Project 01
- CLIENT : PUNJ LLOYD LTD
- PLACE : IOCL , PARADIP REFINERY , ODISHA
- SCOPE OF WORK : 415 M.T
- JOB DESCRIPTION : FABRICATION, TRANSPORTATION & ERECTION OF HYDROTESTING OF VARIOUS TANKS
Project 02
- CLIENT : PUNJ LLOYD LTD
- PLACE : BHARAT OMAN REFINERIES LTD , BINA , MADHYA PRADESH
- SCOPE OF WORK : 340 M.T
- JOB DESCRIPTION : FABRICATION, TRANSPORTATION & ERECTION OF HYDROTESTING OF SOUR WATER TANKS , SULPHAR RECOVERY UNIT
Project 03
- CLIENT : PUNJ LLOYD LTD
- PLACE : MRPL MANGALORE REFINARY, KARNATAKA
- SCOPE OF WORK :150 M.T
- JOB DESCRIPTION : FABRICATION, TRANSPORTATION & ERECTION & HYDROTESTING OF CLEAR WATER TANKS , CDSP PROJECT